Prodrugs of gamma-hydroxybutyric acid, compositions and uses thereof
43 claims: 36 independent, 7 dependent
- 1式(IA)の化合物またはその薬学的に許容される 塩:式(IA)式中、 R g は水素またはC 1- 3 アルキルであり、 R h およびR f はそれぞれ独立して水素 またはC 1-3 アルキ ルで ある。
- 2前記化合物が下記の構造を有する、 請求項 1 に記載の化合物。
- 3前記化合物が式(IIA)の構造を有する、請求項1に記載の化合物。 式(IIA)
- 4前記化合物が式(IIB)の構造を有する、請求項1に記載の化合物。 式(IIB)
- 5前記化合物が式(IIC)の構造を有する、請求項1に記載の化合物。 式(IIC)
- 6前記化合物の分子量は450Da以下、または150-450Da、または150-300Daである、請求項 1~5 のいずれか1項に記載の化合物。
- 7前記水素はその同位体を含み、前記同位体はプロチウムおよび重水素である、請求項 1~6 のいずれか1項に記載の化合物。
- 8前記化合物は、経口投与後生物学的プロセスを介して、γ-ヒドロキシ酪酸に変換され、ヒト循環系に入ることができる、請求項 1~7 のいずれか1項に記載の化合物。
- 9請求項 1~8 のいずれか1項に記載の1つ以上の化合物、および薬学的に許容される担体を含む医薬組成物。
- 10前記医薬組成物は固体である、請求項 9 に記載の医薬組成物。
- 11前記薬学的に許容される担体は、前記化合物を溶解または分散させるための溶媒を含む、請求項 9 に記載の医薬組成物。
- 12前記溶媒は水を含む、請求項 11 に記載の医薬組成物。
- 13前記製剤が液体剤形である、請求項 9、11および12の いずれか1項に記載の医薬組成物。
- 14前記薬学的に許容される担体は、香味剤、スクロース、ラクトース、セルロース糖、マンニトール、マルチトール、デキストラン、ソルビトール、デンプン、寒天、アルギナート、キチン、キトサン、ペクチン、トラガカントゴム、アラビアゴム、ゼラチン、コラーゲン、カゼイン、アルブミン、合成もしくは半合成ポリマまたはグリセリド、メチルセルロース、ヒドロキシプロピルメチル-セルロース、またはポリビニルピロリドンを含む、請求項 9~13 のいずれか1項に記載の医薬組成物。
- 15前記薬学的に許容される担体は、ポリマ賦形剤を含む、請求項 9~14 のいずれか1項に記載の医薬組成物。
- 16前記医薬組成物は、錠剤、カプレット、カプセル、ジェルキャップ、顆粒、丸薬、粉末、ロゼンジ、サシェ、カシェ剤、懸濁液、エマルジョン、溶液、スラリーまたはシロップを含む、請求項 9 に記載の医薬組成物。
- 17前記医薬組成物は、単位剤形で製剤化されている、請求項 9~16 ののいずれか1項に記載の医薬組成物。
- 18前記単位剤形は、0.5g~30gの重量を有する、請求項 17 に記載の医薬組成物。
- 19前記単位剤形は、1g~18gの重量を有する、請求項 18 に記載の医薬組成物。
- 20前記医薬組成物が液体剤形である、請求項 19 に記載の医薬組成物。
- 21前記医薬組成物は、水酸化ナトリウム、塩酸およびリンゴ酸から選択されるpH調整剤を更に含む、請求項 9~20 のいずれか1項に記載の医薬組成物。
- 22前記医薬組成物は、即時放出形態を含む形態で製剤化されている、請求項 9~21 のいずれか1項に記載の医薬組成物。
- 23前記医薬組成物は、遅延放出形態を含む形態で製剤化されている、請求項 9~21 のいずれか1項に記載の医薬組成物。
- 24前記医薬組成物は、徐放形態を含む形態で製剤化されている、請求項 9~21 のいずれか1項に記載の医薬組成物。
- 25疾患の治療用の医薬品 の製造における 式(IA)の化合物またはその薬学的に許容される塩 の使用 であって、前記疾患は、ナルコレプシー、日中の過剰な眠気、カタプレキシー、神経変性疾患、睡眠障害症候群、線維筋痛症、慢性疲労、統合失調 症、 過食性障害、パーキンソン病、遅発性ジスキネジア 、ア ルツハイマー病 、ナルコレプシーに関連した日中の過剰な眠気、またはナルコレプシーに関連したカタプレキシー であり、 式(IA)式中、 R g は水素またはC 1- 3 アルキルであり、 R h およびR f はそれぞれ独立して水素 または C 1- 3 アル キルで ある、 疾患の治療用の医薬品の製造における式(IA)の化合物またはその薬学的に許容される塩の使用 。
- 26前記疾患は、ナルコレプシー、日中の過剰な眠気、カタプレキシー、線維筋痛症、慢性疲労、または遅発性ジスキネジアである、請求項 25 に記載の 使用 。
- 27前記疾患は、ナルコレプシーである、請求項 26 に記載の 使用 。
- 28前記疾患は、日中の過剰な眠気である、請求項 26 に記載の 使用 。
- 29前記疾患は、カタプレキシーである、請求項 26 に記載の 使用 。
- 30前記化合物は1日に2回以下で投与される、請求項 25~29 のいずれか1項に記載の 使用 。
- 31前記化合物は1日に1回以下で投与される、請求項 25~30 のいずれか1項に記載の 使用 。
- 32前記化合物は、経口、経鼻、静脈内、皮下、舌下、または筋肉内投与される、請求項 25~31 のいずれか1項に記載の 使用 。
- 33前記化合物は、経口投与される、請求項 25~31 のいずれか1項に記載の 使用 。
- 34前記化合物は、エマルジョン、シロップ、エリキシル、懸濁液、スラリーおよび溶液で投与される、請求項 25~33 のいずれか1項に記載の 使用 。
- 35前記化合物は、溶液で投与される、請求項 25~34 のいずれか1項に記載の 使用 。
- 36前記化合物は、0.5g~30gの量で投与される、請求項 25~35 のいずれか1項に記載の 使用 。
- 37前記化合物は、即時放出剤形として投与される、請求項 25~36 のいずれか1項に記載の 使用 。
- 38前記化合物は、遅延放出剤形として投与される、請求項 25~36 のいずれか1項に記載の 使用 。
- 39前記化合物は、徐放剤形として投与される、請求項 25~36 のいずれか1項に記載の 使用 。
- 40前記化合物が下記の構造を有する、請求項25に記載の使用。
- 41前記化合物が式(IIA)の構造を有する、請求項25に記載の使用。 式(IIA)
- 42前記化合物が式(IIB)の構造を有する、請求項25に記載の使用。 式(IIB)
- 43前記化合物が式(IIC)の構造を有する、請求項25に記載の使用。 式(IIC)
Independent claims43
554 paragraphs, as filed
The present disclosure generally relates to prodrugs of γ-hydroxybutyric acid (GHB), as well as compositions and uses thereof.
Narcolepsy is a chronic neuropathy characterized by excessive daytime sleepiness (EDS), cataplexy, sleep paralysis, sleep onset illusion, and nocturnal sleep disorders. EDS is usually present and appears first. Cataplexy occurs in approximately 70% of patients with narcolepsy, but other symptomatic features occur less frequently and in various combinations. The prevalence of narcolepsy in the United States and Europe ranges from 20 to 67 / 100,000.
GHB is a naturally occurring central nervous system (CNS) transmitter. GHB sodium salt, also known as sodium oxybate, is currently marketed as Xyrem by Jazz Pharmaceuticals plc, which has been approved by the US Food and Drug Administration (FDA) for the treatment of cataplexy associated with narcolepsy. The first and only drug. Sodium oxybate has been shown to be highly effective with a reduction of approximately 70% in the total number of cataplexy episodes. In Europe, sodium oxybate is used as a medicine for a variety of purposes, including narcolepsy, alcohol dependence, and opiate dependence. In November 2005, the FDA approved an expanded indication for sodium oxybate as a treatment for excessive daytime drowsiness (EDS). In addition, sodium oxybate has also been clinically tested in the United States for fibromyalgia syndrome, the pain of fibromyalgia, which is notorious for being difficult to treat. Sodium oxybate also has the potential to treat other CNS disorders such as insomnia, hallucinogenic dreams and sleep paralysis.
Regardless of its effective efficacy and favorable position in the treatment of Narcolepsy-related EDS and cataplexy, sodium oxybate exhibits a suboptimal pharmacokinetic profile, which makes it difficult to provide optimal therapeutic effects. ing. Defects in sodium oxybate include: 1) fluctuating oral bioavailability and unpredictable drug plasma concentrations due to its inconsistent absorption in patients; 2) short intraplasmic half-life (t)<sub>1/2</sub><1 hour); 3) Significant food effects (high-fat diet can significantly delay and reduce sodium oxybate absorption); 4) Oral high-dose bolus caused unpleasant GI disorders; 5) Insufficient Patient compliance and inconvenient drug administration (due to the twice-night administration regimen); 6) Risk of hypernatremia (due to ingestion of large amounts of sodium salt form compounds). As a result, these deficiencies prevent sodium oxybate from providing the maximum therapeutic effect that can probably be achieved. Therefore, compounds derived from GHB continue to be needed to overcome some or all of the above defects.
The present disclosure provides, among other things, compounds of formula I or pharmaceutically acceptable salts, esters, hydrates, or solvates thereof:<chemistry num="1"><img file="JP6830671B2_D0001.tif" /></chemistry>Equation (I) where the variables are specified below.
The present disclosure further provides a pharmaceutical composition comprising one or more compounds of the present disclosure.
The disclosure also provides the use of one or more compounds in the manufacture of agents to treat the disease, where the disease is narcolepsy, excessive daytime sleepiness, cataplexy, neurodegenerative diseases, sleep disorder syndrome, etc. Fibromyalgia, chronic fatigue, schizophrenia, hyperphagia, Parkinson's disease, late-onset dyskinesia, or Alzheimer's disease.
The present disclosure further provides a method of treating a disease, comprising administering to a subject an effective amount of one or more compounds of the present disclosure, wherein the disease is narcolepsy, excessive daytime sleepiness. , Cataplexy, neurodegenerative disease, sleep disorder syndrome, fibromyalgia, chronic fatigue, schizophrenia, hyperphagia, Parkinson's disease, late-onset dyskinesia, or Alzheimer's disease.
The present disclosure also provides compounds of the present disclosure for use in any of the methods described herein.
Compounds In one aspect, the present disclosure provides compounds of formula I or pharmaceutically acceptable salts, esters, hydrates, or solvates thereof:<chemistry num="2"><img file="JP6830671B2_D0002.tif" /></chemistry>In equation (I), B is<chemistry num="3"><img file="JP6830671B2_D0003.tif" /></chemistry>-(O) R<sup>1</sup>, -R<sup>2</sup>(OCO) R<sup>3</sup>, Substituted or unsubstituted C<sub>5-10</sub>Aryl, C<sub>1-12</sub>Alkyl, C<sub>5-12</sub>Aralkill, C<sub>2-12</sub>Alkenyl, C<sub>6-12</sub>Alarkenil, C<sub>2-12</sub>Alkyne, C<sub>3-8</sub>Cycloalkyl, 3-10-membered heterocyclic alkyl, or 5--10-membered heterocyclic aryl, where one or more substituents are C.<sub>1-12</sub>Alkyl, amino, substituted amino, amino protecting group, -R<sup>4</sup>-SR<sup>5</sup>, Halogen, hydroxyl, cyano, mono, di, or trihalo-C<sub>1-6</sub>Alkyl, C<sub>2-12</sub>Alkenyl, C<sub>2-12</sub>Alkyne, C<sub>1-12</sub>Alkoxy, C<sub>5-10</sub>Aryl, C<sub>5-10</sub>Alkylaryl, C<sub>3-8</sub>Cycloalkyl, C<sub>1-12</sub>Alkylsulfonyl, 3-8-membered heterocyclic alkyl, 3-10-membered heterocyclic aryl, C<sub>5-10</sub>Aryloxyl, C<sub>5-10</sub>Arylcarbonyl, C<sub>1-6</sub>Alkylcarbonyloxyl or C<sub>1-4</sub>Selected from the group consisting of alkyloxycarbonyl; where R<sup>1</sup>And R<sup>3</sup>Independently C<sub>1-12</sub>Alkyl, C<sub>2-12</sub>Alkenyl, C<sub>5-12</sub>Aralkill, C<sub>6-12</sub>Alarkenil, C<sub>2-12</sub>Alkyne, C<sub>5-10</sub>Aryl, C<sub>3-8</sub>Cycloalkyl, 3-10 membered heterocyclic alkyl, 5-10 membered heterocyclic aryl, or<chemistry num="4"><img file="JP6830671B2_D0004.tif" /></chemistry>And all of these are -R<sup>4</sup>-SR<sup>5</sup>, Halogen, hydroxyl, cyano, amino, substituted amino, C<sub>1-12</sub>Alkyl, C<sub>2-12</sub>Alkenyl, C<sub>2-12</sub>Alkyne, C<sub>5-10</sub>Aryl, C<sub>1-12</sub>Alkoxy, C<sub>3-8</sub>Cycloalkyl, 3-8 membered heterocyclic alkyl, or 3-10 membered heterocyclic aryl, C<sub>1-4</sub>Alkylsulfonyl, C<sub>5-10</sub>Aryloxyl, C<sub>5-10</sub>Arylcarbonyl, C<sub>1-4</sub>Alkyloxycarbonyl, or C<sub>1-12</sub>Alkylcarbonylamino can optionally be mono- or independently poly-substituted; R<sup>2</sup>Is C<sub>1-6</sub>Alkylene or C<sub>1-6</sub>It is an alkylene oxyl and all of these are C<sub>1-6</sub>Optional further substitution by alkyl; R<sup>4</sup>Is combined, C<sub>1-6</sub>Alkylene, C<sub>5-10</sub>Allylen, or C<sub>5-12</sub>Allylene alkylene, all of which are C<sub>1-3</sub>Optionally further substituted with alkyl, and R<sup>5</sup>Is hydrogen or C<sub>1-12</sub>Alkyl and R<sub>g</sub>Is hydrogen, C<sub>1-6</sub>Alkyl, phenyl, or phenylmethyl, all of which are halogen, hydroxyl, methylthio, C<sub>1-4</sub>Alkyl, or C<sub>5-8</sub>Arbitrarily mono- or independently poly-substituted with aryl; as well as R<sub>h</sub>And R<sub>f</sub>Is independently hydrogen, C<sub>1-6</sub>Alkyl, C<sub>1-6</sub>Alkylcarbonyl, C<sub>1-6</sub>Alkenylcarbonyl, C<sub>3-6</sub>Cycloalkoxylcarbonyl, or amino protecting group; or R<sub>f</sub>And R<sub>g</sub>Is a 4- to 8-membered heterocyclic alkyl with C, O, N or S atoms<chemistry num="5"><img file="JP6830671B2_D0005.tif" /></chemistry>Forming any of these, halogen, hydroxyl or C<sub>1-4</sub>Optional mono-substituted with alkyl, or independently poly-substituted, and R<sub>h</sub>Is hydrogen, C<sub>1-6</sub>It is an alkyl or amino protecting group.
In some embodiments, B is C<sub>2-6</sub>C substituted with alkyl, aryl or amino groups<sub>1-8</sub>It is alkyl and B is not linear alkyl. In some embodiments, B is C<sub>1-6</sub>C substituted with alkyl, aryl or amino groups<sub>2-6</sub>It is alkenyl. In some embodiments, B is a substituted or unsubstituted C<sub>3-8</sub>Cycloalkyl, where the substituents are halogen, hydroxyl and C<sub>1-6</sub>Selected from the group consisting of alkyl. In some embodiments, B is a substituted or unsubstituted 3-8 member heterocyclic alkyl, where the substituents are halogen, hydroxyl and C.<sub>1-6</sub>Selected from the group consisting of alkyl. In some embodiments, B is a substituted or unsubstituted 5-8 member heterocyclic aryl, where the substituents are halogen, hydroxyl and C.<sub>1-6</sub>Selected from the group consisting of alkyl.
In some embodiments, B is -CHR<sup>13</sup>R<sup>14</sup>And here, R<sup>13</sup>And R<sup>14</sup>Is independently hydrogen, C<sub>1-6</sub>Alkyl, C<sub>5-10</sub>Selected from the group consisting of aryl and amino groups, where R<sup>13</sup>And R<sup>14</sup>Cannot be methyl at the same time. In some embodiments, R<sup>13</sup>And R<sup>14</sup>Is cyclized, C<sub>3-8</sub>Cycloalkyl can be formed. In some embodiments, R<sup>13</sup>And R<sup>14</sup>Form a 3-8 member heterocyclic alkyl with O, N or S atoms.
The present disclosure also provides a compound having the chemical structure represented by formula (IA), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="6"><img file="JP6830671B2_D0006.tif" /></chemistry>In equation (IA), R<sub>g</sub>Is hydrogen, C<sub>1-6</sub>Alkyl, phenyl, or phenylmethyl, all of which are halogen, hydroxyl, methylthio, C<sub>1-4</sub>Alkyl, or C<sub>5-8</sub>Arbitrarily mono- or independently poly-substituted with aryl; as well as R<sub>h</sub>And R<sub>f</sub>Is independently hydrogen, C<sub>1-6</sub>Alkyl, C<sub>1-6</sub>Alkylcarbonyl, C<sub>1-6</sub>Alkenylcarbonyl, C<sub>3-6</sub>It is a cycloalkoxylcarbonyl or amino protecting group.
In some embodiments, R<sub>g</sub>Is hydrogen or C<sub>1-3</sub>It is alkyl. In some embodiments, R<sub>h</sub>And R<sub>f</sub>At least one of hydrogen or C<sub>1-3</sub>It is alkyl. In some embodiments, R<sub>h</sub>And R<sub>f</sub>Both are hydrogen or C<sub>1-3</sub>It is alkyl. In some embodiments, R<sub>h</sub>Is hydrogen or C<sub>1-3</sub>Alkyl and R<sub>f</sub>Is -COR<sup>5</sup>And R<sup>5</sup>Is C<sub>1-3</sub>Alkyl, C<sub>1-3</sub>Alkenyl, or C<sub>5-6</sub>Cycloalkyloxyl. In some embodiments, R<sub>f</sub>Or R<sub>h</sub>If is an amino protecting group, then R<sub>g</sub>Is not isopropyl or benzyl.
The present disclosure also provides a compound having the chemical structure represented by formula (IA) or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="7"><img file="JP6830671B2_D0007.tif" /></chemistry>In equation (IA), R<sub>f</sub>And R<sub>g</sub>Is a 4-6-membered heterocyclic alkyl with a C, O, or N atom or<chemistry num="8"><img file="JP6830671B2_D0008.tif" /></chemistry>Forming, all of these are halogens, hydroxyls, C<sub>1-4</sub>Optional mono- or independently poly-substituted with alkyl or amino protecting groups; R<sub>h</sub>Is hydrogen, C<sub>1-3</sub>It is an alkyl or amino protecting group.
The present disclosure also provides a compound having the chemical structure represented by formula (IA-1) or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="9"><img file="JP6830671B2_D0009.tif" /></chemistry>In equation (IA-1), R<sub>h</sub>Is hydrogen, C<sub>1-3</sub>It is an alkyl or amino protecting group.
The present disclosure also provides a compound having the chemical structure represented by formula (IA-2), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="10"><img file="JP6830671B2_D0010.tif" /></chemistry>In equation (IA-2), R<sub>i</sub>Is hydrogen, C<sub>1-4</sub>It is an alkyl or amino protecting group.
The present disclosure also provides a compound having the chemical structure represented by formula (IB), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="11"><img file="JP6830671B2_D0011.tif" /></chemistry>In equation (IB), R<sup>1</sup>Is C<sub>1-8</sub>Alkyl, C<sub>5-8</sub>Aryl, C<sub>5-12</sub>Aralkyl, 3-10 member heterocyclic alkyl or<chemistry num="12"><img file="JP6830671B2_D0012.tif" /></chemistry>And all of these are halogen, cyano, hydroxyl, C<sub>1-12</sub>Alkyl or C<sub>1-4</sub>It is optionally mono-substituted with alkoxy, or independently poly-substituted.
In some embodiments, R<sup>1</sup>teeth<chemistry num="13"><img file="JP6830671B2_D0013.tif" /></chemistry>And here, R<sub>1a</sub>And R<sub>1b</sub>Is independently hydrogen, C<sub>1-12</sub>Alkyl, C<sub>1-4</sub>Alkoxy or halogen. In some embodiments, R<sup>1</sup>teeth<chemistry num="14"><img file="JP6830671B2_D0014.tif" /></chemistry>And R<sub>1c</sub>Is hydrogen, C<sub>1-12</sub>It is alkyl or halogen.
The present disclosure also provides a compound having a chemical structure represented by the formula (IC), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="15"><img file="JP6830671B2_D0015.tif" /></chemistry>In equation (IC), R<sub>a</sub>, R<sub>b</sub>, R<sub>c</sub>, R<sub>d</sub>And R<sub>e</sub>Independently hydrogen, halogen, C<sub>1-12</sub>Alkyl, C<sub>1-12</sub>Alkoxy<sub>、</sub>Cyano, C<sub>1-12</sub>Alkylsulfonyl, C<sub>1-6</sub>Alkylcarbonyloxyl, C<sub>1-4</sub>Alkyloxycarbonyl, mono, di, or trihalo-C<sub>1-6</sub>Alkyl, C<sub>5-10</sub>Aryloxyl or C<sub>5-10</sub>Arylcarbonyl; as well as R<sub>a</sub>, R<sub>b</sub>, R<sub>c</sub>, R<sub>d</sub>And R<sub>e</sub>If is all hydrogen, then R<sub>a</sub>, R<sub>b</sub>, R<sub>c</sub>, R<sub>d</sub>And R<sub>e</sub>At least one of them is not protium.
In some embodiments, R<sub>b</sub>, R<sub>c</sub>, R<sub>d</sub>Are all hydrogen, as well as R<sub>e</sub>And R<sub>a</sub>Independently hydrogen, halogen, C<sub>1-3</sub>Alkyl, C<sub>1-3</sub>Alkoxy<sub>、</sub>Cyano, C<sub>1-3</sub>Alkylsulfonyl, C<sub>1-3</sub>Alkylcarbonyloxyl, C<sub>1-3</sub>Alkyloxycarbonyl, or mono, di, or trihalo-C<sub>1-3</sub>It is alkyl. In some embodiments, R<sub>e</sub>And R<sub>a</sub>One of them is hydrogen. In some embodiments, R<sub>a</sub>, R<sub>b</sub>, R<sub>c</sub>, R<sub>d</sub>And R<sub>e</sub>However, not all of them are hydrogen at the same time.
The present disclosure also provides a compound having the chemical structure represented by the formula (ID), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="16"><img file="JP6830671B2_D0016.tif" /></chemistry>Expression (ID) In the expression, R<sup>2</sup>Is-(CR<sup>6</sup>R<sup>7</sup>)<sub>m</sub>-And here m = 1-6, as well as R<sup>6</sup>And R<sup>7</sup>Is independently hydrogen or C<sub>1-3</sub>Alkyl; R<sup>3</sup>Is C<sub>1-12</sub>Alkyl, C<sub>5-8</sub>Aryl, 3-8-membered heterocyclic alkyl, or 5--8-membered heterocyclic aryl, which are halogen, unsubstituted or substituted amino, C, respectively.<sub>1-6</sub>Alkyl or C<sub>1-6</sub>Optional mono- or independently poly-substituted with alkoxy; where amino is substituted, it is C.<sub>1-6</sub>Alkyl, or C<sub>1-6</sub>It can be optionally mono-substituted with an alkylcarbonyl or independently poly-substituted.
In some embodiments, R<sup>2</sup>Is-CH<sub>2</sub>-. In some embodiments, R<sup>3</sup>Are methyl, ethyl, phenyl, each of which is optionally mono-substituted or independently poly-substituted with methoxyl, methyl or ethyl.
The present disclosure also provides a compound having the chemical structure represented by the formula (ID-1), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="17"><img file="JP6830671B2_D0017.tif" /></chemistry>In equation (ID-1), R<sub>3a</sub>, R<sub>3b</sub>, R<sub>3c</sub>, R<sub>3d</sub>And R<sub>3e</sub>Independently hydrogen, halogen, C<sub>1-6</sub>Alkyl, or C<sub>1-6</sub>Alkoxy.
The present disclosure also provides a compound having the chemical structure represented by the formula (ID-2), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="18"><img file="JP6830671B2_D0018.tif" /></chemistry>In equation (ID-2), R<sup>9</sup>And R<sup>10</sup>Is independently hydrogen, C<sub>1-6</sub>Alkyl or C<sub>1-6</sub>Alkylcarbonyl; as well as R<sup>8</sup>Is hydrogen or C<sub>1-6</sub>It is alkyl.
The present disclosure also provides a compound having the chemical structure represented by formula (IE), or a pharmaceutically acceptable salt, ester, hydrate, or solvate thereof:<chemistry num="19"><img file="JP6830671B2_D0019.tif" /></chemistry>In formula (IE) formula, R<sup>11</sup>Is C<sub>1-8</sub>Alkyl or C<sub>5-8</sub>Aryl, all of which are halogen, hydroxyl, C<sub>1-6</sub>Alkyl or C<sub>1-4</sub>Arbitrarily mono- or independently poly-substituted with alkoxy; R<sup>12</sup>Is hydrogen or C<sub>1-6</sub>It is alkyl.
In some embodiments, the molecular weight of each of the compounds disclosed herein is 450 Da or less. In some embodiments, the molecular weights of each of the compounds disclosed herein are 150-450 Da, 150-300 Da, or 200-300 Da.
In some embodiments, the compound is selected from:<chemistry num="20"><img file="JP6830671B2_D0020.tif" /></chemistry><img file="JP6830671B2_D0021.tif" /><img file="JP6830671B2_D0022.tif" />
For simplicity, the various features of the present disclosure described in the context of a single embodiment can also be provided separately or in any suitable partial combination.
As used herein, the term "substituted" means that when referring to a chemical group, the chemical group has one or more hydrogen atoms that have been removed and replaced by the substituent. As used herein, the term "substituent" has the usual meaning known in the art and is covalently attached to the parent group or, where appropriate, condensed, chemistry. Show the part. As used herein, the term "optionally substituted" means that the chemical group does not have to have a substituent (ie, unsubstituted) or may have one or more substituents (ie, substituted). It means that. It should be understood that substitutions at a given atom are limited by valence.
In this specification, "C<sub>nm</sub>The term "" refers to a range of carbon atoms, where n and m are integers, and the range of carbon atoms includes the end points (ie n and m) and each integer point between them. For example, C<sub>1-6</sub>Indicates the range of 1 to 6 carbon atoms, 1 carbon atom, 2 carbon atoms, 3 carbon atoms, 4 carbon atoms, 5 carbon atoms and 6 carbon atoms. include.
As used herein, the term "alkyl" refers to saturated hydrocarbon groups which may be straight or branched, whether used as part of another term or independently. show. "C<sub>nm</sub>The term "alkyl" refers to alkyl having n to m carbon atoms. In some embodiments, the alkyl group comprises 1-12, 1-8, 1-6, 1-4, 1-3, or 1-2 carbon atoms. Examples of alkyl groups include, but are not limited to, chemical groups such as: methyl, ethyl, n-propyl, isopropyl, n-butyl, tert-butyl, isobutyl, sec-butyl; higher homologues, For example, 2-methyl-1-butyl, n-pentyl, 3-pentyl, n-hexyl, 1,2,2-trimethylpropyl, etc.
As used herein, the term "alkenyl" is linear or branched with at least one carbon-carbon double bond, whether used as part of another term or independently. Indicates an unsaturated hydrocarbon group which may be a chain. "C<sub>nm</sub>The term "alkenyl" refers to an alkenyl having n to m carbon atoms. In some embodiments, the alkenyl group comprises 2-12, 2-10, 2-8, 2-6, 2-5, 2-4, or 2-3 carbon atoms. In some embodiments, the alkenyl group comprises 1-6, 1-5, 1-4, 1-3, 1-2, or one carbon-carbon double bond. Examples of alkenyl groups include, but are not limited to, chemical groups such as: ethenyl, n-propenyl, isopropenyl, n-butenyl, sec-butenyl, etc.
As used herein, the term "alkynyl" is a linear or branched chain having at least one carbon-carbon triple bond, whether used as part of another term or independently. Indicates an unsaturated hydrocarbon group which may be. "C<sub>nm</sub>The term "alkynyl" refers to an alkynyl having n to m carbon atoms. In some embodiments, the alkynyl group comprises 2-12, 2-10, 2-8, 2-6, 2-5, 2-4, or 2-3 carbon atoms. In some embodiments, the alkynyl group comprises 1-6, 1-5, 1-4, 1-3, 1-2, or one carbon-carbon triple bond. Examples of alkynyl groups include, but are not limited to, chemical groups such as: ethynyl, propyne-1-yl, propyne-2-yl, etc.
As used herein, the term "alkylene" is a straight chain or branched chain, whether used as part of another term or independently, and refers to two other parts of the molecule. The divalent saturated hydrocarbon moiety to be linked is shown. "C<sub>nm</sub>The term "alkylene" refers to an alkylene having n to m carbon atoms. In some embodiments, the alkylene group comprises 1-12, 1-10, 1-8, 1-6, 1-5, 1-4, or 1-3 carbon atoms. Examples of alkylene groups include, but are not limited to, chemical groups such as: methylene, ethylene, 1-methyl-methylene, propylidene, butylidene and the like.
As used herein, the term "aryl" or "aromatic", whether used as part of another term or independently, is an alternating double between the carbon atoms that form the ring. Shows monocyclic or polycyclic carbocyclic radicals with bonds and single bonds. In some embodiments, the aryl ring system has 5-10, 5-8, or 5-6 carbon atoms in one or more rings. In some embodiments, the aryl ring system has two or more rings fused together. Examples of aryl groups include, but are not limited to, chemical groups such as: phenyl, naphthyl, tetrahydronaphthyl, indanyl, idenyl and the like.
As used herein, the term "arylene", whether used as part of another term or independently, is a divalent aryl ring or ring system that connects two other parts of the molecule. That is, the two parts are attached to the ring at two separate ring positions. If the aryl ring of arylene is a monocyclic ring system, the two moieties are attached to the same ring at two separate ring positions. If the aryl ring of arylene is a polycyclic ring system, the two moieties can be attached to the same ring or different rings at two separate ring positions. The arylene may be substituted or unsubstituted. Unsubstituted arylenes have no substituents other than the two parts of the molecule to which they are linked. The substituted arylene has a substituent in addition to the two parts of the molecule to which it is linked.
As used herein, the term "aralkyl" refers to a group of formula-alkyl-aryl, whether used as part of another term or independently. "C<sub>nm</sub>The term "ararchyl" refers to an aralkyl having a total carbon number of n to m. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, 1 to 3, or 1 to 2 carbon atoms. In some embodiments, the aralkyl group has 5-12, 5-10, 5-8, or 6-7 carbon atoms. Examples of aralkyl groups include, but are not limited to, various alkylbenzenes and alkylnaphthalene.
As used herein, the term "allylen alkylene" refers to a group of formula-alkylene-arylene, whether used as part of another term or independently, wherein the arylene group and The alkylene group is as described above, where "C"<sub>nm</sub>The term "allylenalkylene" refers to an arylene alkylene group having a total carbon number of n to m. In some embodiments, the alkylene portion of the arylene alkylene moiety has 1 to 6, 1 to 4, 1 to 3, or 1 to 2 carbon atoms. In some embodiments, the arylene moiety of the arylene alkylene moiety has 6-12, 6-11, 6-10, 6-9, or 6-8 ring-forming carbon atoms. In some embodiments, the arylene alkylene moiety has 7-12, 7-10, 7-9, or 7-8 carbon atoms.
As used herein, the term "aralkenyl" refers to a group of formula-alkenyl-aryl, whether used as part of another term or independently, where "C."<sub>nm</sub>The term "aralkenyl" refers to an aralkenyl group having a total carbon number of n to m. In some embodiments, the alkenyl moiety contains 2-12, 2-10, 2-8, 2-6, 2-5, 2-4, or 2-3 carbon atoms. In some embodiments, the aralkenyl group has 6-18, 6-12, 6-10, 6-8, or 6-7 carbon atoms. Examples of aralkenyl groups include, but are not limited to, chemical groups such as: styryl, 3- (benzyl) prop-2-enyl, and 6-naphthylhex-2-enyl.
As used herein, the term "cycloalkyl", whether used as part of another term or independently, is a non-aromatic cyclic hydrocarbon containing alkyl cyclized and / or alkenyl groups. Is shown. Cycloalkyl groups can include monocyclic or polycyclic (eg, having 2, 3 or 4 fused rings) groups and spiro rings. In some embodiments, the cycloalkyl is a saturated cycloalkyl. Cycloalkyl groups have 3, 4, 5, 6, 7, and 8 ring-forming carbons (C)<sub>3-8</sub>) Can have. Examples of cycloalkyl groups include, but are not limited to, chemical groups such as: cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptatrienyl, etc. .. In some embodiments, the cycloalkyl used herein may be condensed with one or more aromatic rings (ie, share a bond with it), eg, benzo such as cyclopentane, cyclohexane, etc. Or it is a thienyl derivative. In some embodiments, the cycloalkyl group containing the fused aromatic ring can be attached via any ring-forming atom, including the ring-forming atom of the fused aromatic ring.
As used herein, the term "cycloalkylene" refers to a divalently saturated or partially saturated non-aromatic cyclic hydrocarbon group, whether used as part of another term or independently. This connects the two other parts of the molecule. "C<sub>nm</sub>The term "cycloalkylene" refers to a cycloalkylene having n to m carbon atoms. In some embodiments, the cycloalkylene group comprises 3-12, 3-10, 3-8, 3-7, 3-6, 3-5, or 3-4 carbon atoms. Examples of cycloalkylene groups include, but are not limited to, chemical groups such as: cyclopropylidene, cyclobutaliden, etc.
As used herein, the term "alkoxy" refers to a group of formula-O-alkyl, whether used as part of another term or independently. "C<sub>nm</sub>The term "alkoxy" means that the alkyl moiety of an alkoxy group has n to m carbon atoms. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, or 1 to 3 carbon atoms. Examples of alkoxy groups include, but are not limited to, chemical groups such as: methoxy, ethoxy, propoxy (eg, n-propoxy and isopropoxy), t-butoxy, and the like.
As used herein, the term "aryloxyl" refers to a group of formula-O-aryl, where the aryl group is as previously described. "C<sub>nm</sub>"Aryloxyl" means that the aryl portion of an aryloxyl group has n to m carbon atoms. In some embodiments, the aryl moiety has 5-10, 5-8, or 5-6 carbon atoms.
As used herein, the term "alkylamino" refers to a group of formula-NH-alkyl, whether used as part of another term or independently. "C<sub>nm</sub>The term "alkylamino" means that the alkyl moiety of an alkylamino group has n to m carbon atoms. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, or 1 to 3 carbon atoms.
As used herein, the term "arylcarbonyl" refers to a group of formula-C (= O) -aryl, whether used as part of another term or independently, wherein. , Aryl groups are as previously described. "C<sub>nm</sub>"Arylcarbonyl" means that the aryl portion of an arylcarbonyl group has n to m carbon atoms. In some embodiments, the aryl moiety has 5-10, 5-8, or 5-6 carbon atoms.
As used herein, the term "alkylcarbonyl" refers to a group of formula-C (= O) -alkyl, whether used as part of another term or independently. "C<sub>nm</sub>The term "alkylcarbonyl" means that the alkyl moiety of an alkylcarbonyl group has n to m carbon atoms. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, 1 to 3 or 1 to 2 carbon atoms.
As used herein, the term "alkoxycarbonyl" refers to a group of formula-C (= O) -O-alkyl, whether used as part of another term or independently. "C<sub>nm</sub>The term "alkoxycarbonyl" means that the alkyl moiety of an alkoxycarbonyl group has n to m carbon atoms. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, 1 to 3 or 1 to 2 carbon atoms.
As used herein, the term "cycloalkenylcarbonyl" refers to a group of formula-C (= O) -O-cycloalkyl, whether used as part of another term or independently. Shown, where the cycloalkyl groups are as previously described. "C<sub>nm</sub>The term "cycloalkyloxylcarbonyl" means that the cycloalkyl moiety of the cycloalkoxylcarbonyl group has n to m carbon atoms. In some embodiments, the cycloalkyl moiety has 3-8, 3-6, 3-5 or 3-4 carbon atoms.
As used herein, the term "alkylcarbonyloxyl" refers to a group of formula-OC (= O) -alkyl, whether used as part of another term or independently. "C<sub>nm</sub>The term "alkylcarbonyloxyl" means that the alkyl moiety of an alkylcarbonyloxyl group has n to m carbon atoms. In some embodiments, the alkyl moiety has 1 to 6, 1 to 4, 1 to 3 or 1 to 2 carbon atoms.
As used herein, in the term "n-member", n is an integer and is typically used in combination with the ring system to describe the number of ring-forming atoms in the ring system. For example, piperidinyl is an example of a 6-membered heterocycloalkyl ring, pyrazolyl is an example of a 5-membered heteroaryl ring, pyridyl is an example of a 6-membered heteroaryl ring, and 1,2,3,4-tetrahydro-. Naphthalene is an example of a 10-membered cycloalkyl group.
As used herein, the term "heterocyclic aryl" refers to an aryl group in which at least one ring atom in the aromatic ring is a heteroatom and the rest of the ring atoms are carbon atoms. The term "nm-membered heterocyclic aryl" refers to a heterocyclic aryl having a ring-forming member of n to m. Examples of heteroatoms include, but are not limited to, oxygen, sulfur, nitrogen, phosphorus, and the like. In some embodiments, the heterocyclic aryl can have 5-10, 5-8, or 5-6 ring-forming members. In some embodiments, the heterocyclic aryl is a 5- or 6-membered heterocyclic aryl. Examples of heterocyclic aryls include, but are not limited to: furanyl, thienyl, pyridyl, pyrrolyl, N-lower alkylpyrrolill, pyridyl-N-oxide, pyrimidyl, pyrazinyl, imidazolyl, indolyl and the like.
A 5-membered heterocyclic aryl is a heterocyclic aryl having a ring having 5 ring atoms, wherein one or more (eg, 1, 2, or 3) ring atoms are N, O, P, Can be selected independently of and S. Exemplary 5-membered heterocyclic aryls are thienyl, frills, pyrrolyl, imidazolyl, thiazolyl, oxazolyl, pyrazolyl, isothiazolyl, isoxazolyl, 1,2,3-triazolyl, tetrazolyl, 1,2,3-thiasiazolyl, 1,2,3. -Oxaziazolyl, 1,2,4-triazolyl, 1,2,4-thiadiazolyl, 1,2,4-oxadiazolyl, 1,3,4-triazolyl, 1,3,4-thiadiazolyl and 1,3,4-oxadiazolyl Is.
A 6-membered heterocyclic aryl is a heterocyclic aryl having a ring having 6 ring atoms, wherein one or more (eg, 1, 2, or 3) ring atoms are N, O, P, Can be selected independently of and S. Exemplary 6-membered heterocyclic aryls are pyridyl, pyrazinyl, pyrimidinyl, triazinyl and pyridadinyl.
As used herein, the term "heterocyclic alkyl" refers to a cycloalkyl group in which at least one ring atom in the ring system is a heteroatom and the rest of the ring atoms are carbon atoms. The term "nm-membered heterocyclic alkyl" refers to a heterocyclic alkyl having n to m ring-forming members. In addition, the ring may also have one or more double bonds, but no fully conjugated system. In some embodiments, the heterocyclic alkyl is a saturated heterocyclic alkyl. Examples of heteroatoms include, but are not limited to, oxygen, sulfur, nitrogen, phosphorus, and the like. In some embodiments, the heterocyclic alkyl has 3-8, 3-6, or 4-6 ring-forming carbons. Examples of heterocyclic alkyls include, but are not limited to: azetidine, aziridine, pyrrolidyl, piperidyl, piperazinyl, morpholinyl, thiomorpholinyl, homopiperazinyl, and the like.
As used herein, the terms "halo" and "halogen" refer to atoms selected from fluorine, chlorine, bromine and iodine.
In the present specification, "mono, di, or trihalo-C"<sub>nm</sub>"Alkyl" refers to an alkyl group substituted with one, two or three halos, where the alkyl group has n to m carbon atoms and the halos as substituents are the same or different. May be good. Mono, di, or trihalo-C<sub>n</sub>-<sub>m</sub>Examples of alkyls include, but are not limited to, trichloromethyl, chloromethyl, bischloromethyl, chlorobromomethyl.
As used herein, the term "cyano" refers to the group of formula-CN.
As used herein, the term "hydroxyl" refers to a group of formula-OH.
As used herein, the term "methylthio" is used in the formula-S-CH.<sub>3</sub>Shows the basis of.
As used herein, the term "alkylsulfonyl" refers to a group of formula-sulfonyl-alkyl. "C<sub>nm</sub>The term "alkyl sulfonyl" refers to alkyl sulfonyl, where the alkyl moiety has n to m carbon atoms. In some embodiments, the alkyl group has 1 to 6, 1 to 4, or 1 to 3 carbon atoms. Examples of alkylsulfonyl groups include, but are not limited to, methanesulfonyl, ethanesulfonyl, tert-butanesulfonyl, and the like.
As used herein, the term "amino" is used in formula-NH.<sub>2</sub>Shows the basis of.
As used herein, the term "substituted amino" refers to an amino that has been mono-substituted or independently substituted with one or more substituents. Examples of substituents include, but are not limited to: halogens, hydroxyls, C.<sub>1-4</sub>Alkyl, C<sub>5-8</sub>Aryl, C<sub>1-6</sub>Alkenyl, C<sub>3-8</sub>Cycloalkyl, 3-8 membered heterocyclic alkyl, or 3-8 membered heterocyclic aryl, C<sub>1-4</sub>Alkylsulfonyl, C<sub>5-10</sub>Aryloxyl, C<sub>5-10</sub>Arylcarbonyl or C<sub>1-6</sub>Alkyloxycarbonyl, amino protecting groups, etc.
As used herein, the term "amino protecting group" refers to a substituent that protects an amino functional group against unwanted reactions during a synthetic procedure. Examples of amino protecting groups include, but are not limited to: carbamate-protecting groups such as 2-trimethyl-silylethoxycarbonyl (Teoc), 1-methyl-1- (4-bi-phenyl-yl). -Ethoxy-carbonyl (Bpoc), t-butoxycarbonyl (Boc), allyloxycarbonyl (Alloc), 9-fluorenyl-methyloxycarbonyl (Fmoc), and benzyl-oxycarbonyl (Cbz); amide-protecting groups such as formyl , Acetyl, trihaloacetyl, benzoyl, and nitrophenylacetyl; sulfonamide-protecting groups such as 2-nitrobenzenesulfonyl; and imine-and cyclicimide-protecting groups such as phthalimide and dithiasuccinoyl.
As used herein, the term "compound" refers to all stereoisomers of the structures depicted (eg, mirror image isomers and diastereomers), geometric iosomers, metamutants, and isotopes. Is meant to include. Compounds identified herein by name or structure as one particular tautomeric type are intended to include other tautomeric types unless otherwise specified.
The compounds described herein can be asymmetric (eg, have one or more stereocenters). All stereoisomers, such as enantiomers and diastereomers, are intended unless otherwise stated. The compounds of the present disclosure containing asymmetrically substituted carbon atoms can be isolated in optically active or racemic form. Methods of how to prepare the optically active form from an optically inert starting material are known in the art, for example by division of the racemic mixture or stereoselective synthesis. Many geometric isomers, such as olefins, carbon-carbon double bonds, etc., can also be present in the compounds described herein, and all such stable isomers are contemplated in the present disclosure. The cis and trans geometric isomers of the compounds of the present disclosure are described and can be isolated as a mixture of isomers or as separate isomer forms.
In some embodiments, the compounds described herein have an (R) -configuration. In some embodiments, the compounds described herein have an (S) -configuration.
The division of the racemic mixture of compounds can be carried out by any of the many methods known in the art. Examples of methods include fractional recrystallization using a chiral splitting acid (an optically active, salt-forming organic acid). Suitable dividers for the fractional recrystallization method are, for example, optically active acids such as D and L forms of tartaric acid, diacetyl tartaric acid, dibenzoyl tartaric acid, mandelic acid, malic acid, lactic acid or various optically active acids. Camper sulfonic acid, for example β-campar sulfonic acid. Other partitioning agents suitable for fractional crystallization include stereoisomerically pure forms of α-methylbenzylamine (eg, S and R forms, or pure diastereomeric forms), 2-phenylglycinol, Examples thereof include norephedrine, ephedrine, N-methylephedrine, cyclohexylethylamine, 1,2-diaminocyclohexane, and the like.
The division of the racemic mixture can also be carried out by elution on a column packed with an optically active dividing agent (eg, dinitrobenzoylphenylglycine). Suitable elution solvent compositions can be determined by those skilled in the art.
The compounds of the present disclosure also include tautomeric forms. The tautomeric form results from the simultaneous transfer of protons and the exchange of single bonds with adjacent double bonds. Tautomers include tautomers exhibiting prototropy, which are isomer protonated states with the same empirical formula and total charge. Examples of tautomers exhibiting prototropy include ketone-enol pairs, amide-imide acid pairs, lactam-lactim pairs, enamine-imine pairs, and protons can occupy two or more positions in the heterocyclic system. Cyclic forms include, for example, 1H- and 3H-imidazoles, 1H-, 2H- and 4H-1,2,4-triazoles, 1H- and 2H-isoindoles, and 1H- and 2H-pyrazol. The tautomeric form is in equilibrium or can be sterically fixed in one form by appropriate substitution.
The compounds of the present disclosure can also include all isotopes of atoms that occur in intermediates or final compounds. Isotopes include those atoms that have the same atomic number but different mass numbers. For example, hydrogen isotopes include protium, deuterium and tritium. In some embodiments, the isotopes of hydrogen are protium and deuterium. In some embodiments, the hydrogen on the aromatic ring of the compound comprises at least one deuterium. In some embodiments, all the hydrogen on the aromatic ring of the compound is deuterium.
In some embodiments, the compounds of the present disclosure can be transformed into GHB after oral administration. In some embodiments, the compounds of the present disclosure can enter the human circulatory system via a biological process after oral administration. In some embodiments, the compounds of the present disclosure are converted to GHB in the liver. In some embodiments, the compounds of the present disclosure are converted to GHB in the blood. In some embodiments, the GHB release efficiency of the compound within 1 hour after contact with blood or liver is 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, Or 10% or more. In some embodiments, the GHB release efficiency of the compound within 2 hours after contact with blood or liver is 90%, 80%, 70%, 60%, 50%, 40%, 30%, or 20%. That is all.
In some embodiments, the compounds of the present disclosure have higher oral bioavailability than the oral bioavailability of GHB sodium salts. In some embodiments, the oral bioavailability of the compounds of the present disclosure is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.5, 3, or more than the oral bioavailability of GHB sodium salt. 4 times higher. In some embodiments, the compounds of the present disclosure have higher colonic absorption than GHB colonic absorption. In some embodiments, the colonic absorption of the compounds of the present disclosure is 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.5.3, 4, 5, 6 than the colonic absorption of GHB. , 8, or 10 times higher. In some embodiments, the oral bioavailability of the compounds of the present disclosure is 20%, 30%, 40%, 50%, 60%, 70%, 80%, or 90% or greater.
Without being limited by theory, the nature of the compounds of the present disclosure allows the compounds to be formulated into stable solid formulations, especially sustained release or controlled release formulations. For example, some compounds of the present disclosure can be formulated into drugs with controlled absorption in the GI tube. In some embodiments, oral absorption of the compound in the colon is no less than 40%, 50%, 60%, 70%, 80%, 90% or more of total oral absorption.
Synthetic Methods The compounds of the present disclosure, including salts, esters, hydrates, or solvates thereof, can be prepared using any known organic synthesis technique and are any of many possible synthetic routes. Can be synthesized according to.
The reaction for preparing the compounds of the present disclosure can be carried out in a suitable solvent, which can be readily selected by those skilled in the art of organic synthesis. A suitable solvent is a temperature at which the reaction is carried out, eg, a temperature that can range from the freezing temperature of the solvent to the boiling point of the solvent, which is substantially non-existent from the starting material (reactant), intermediate, or product. It can be a reaction. The predetermined reaction can be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction step, the suitable solvent for the particular reaction step can be selected by a skilled technician.
The preparation of the compounds of the present disclosure can include protection and deprotection of various chemical groups. The need for protection and deprotection, as well as the selection of appropriate protecting groups, can be readily determined by one of ordinary skill in the art. Protecting group chemistry is found, for example, in TW Greene and PGM Wuts, Protective Groups in Organic Synthesis, 3rd Edition, Wiley & Sons, Inc., New York (1999, which is incorporated herein by reference in its entirety). be able to.
The reaction can be monitored by any suitable method known in the art. For example, product formation is carried out by spectroscopic means, such as nuclear magnetic resonance spectroscopy (eg, eg).<sup>1</sup>H or<sup>13</sup>C), infrared spectroscopy, spectrophotometric (eg, UV-visible), by mass spectrometry, or chromatography, eg, high performance liquid chromatography (HPLC), liquid chromatography-mass spectrometry (LCMS), or thin layer It can be monitored by chromatography (TLC). Compounds can be prepared by a variety of methods by those skilled in the art, such as High Performance Liquid Chromatography (HPLC) ("Preparative LC-MS Purification: Improved Compound Specific Method Optimization" Karl F. Blom, Brian Glass, Richard Sparks, Andrew P. Combs J. It can be purified by Combi. Chem. 2004, 6 (6), 874-883 (the whole of which is incorporated herein by reference)) and normal phase silica chromatography. Illustrative synthetic schemes are listed below, and abbreviations for reactants or chemical groups of reactants included in the synthetic schemes are specified in the Examples.
For example, the compound of formula I can be formed as shown in Scheme 1. Scheme 1<chemistry num="21"><img file="JP6830671B2_D0023.tif" /></chemistry>
Alternatively, the compound of formula I can be formed as shown in Scheme 2. Scheme 2<chemistry num="22"><img file="JP6830671B2_D0024.tif" /></chemistry>
For example, a compound of formula IA can be formed as shown in Scheme 3 (where X in the scheme indicates any substituent). Scheme 3<chemistry num="23"><img file="JP6830671B2_D0025.tif" /></chemistry>
Representative compounds of formula IA can be formed as shown in Scheme 4. Scheme 4<chemistry num="24"><img file="JP6830671B2_D0026.tif" /></chemistry>
Representative compounds of formula IA can be formed as shown in Scheme 5. Scheme 5<chemistry num="25"><img file="JP6830671B2_D0027.tif" /></chemistry>
Alternatively, the compound of formula IA can be formed as shown in Scheme 6 (where X in the scheme indicates any substituent). Scheme 6<chemistry num="26"><img file="JP6830671B2_D0028.tif" /></chemistry>
Representative compounds of formula IA can be formed as shown in Scheme 7. Scheme 7<chemistry num="27"><img file="JP6830671B2_D0029.tif" /></chemistry>
Representative compounds of formula IA can be formed as shown in Scheme 8. Scheme 8<chemistry num="28"><img file="JP6830671B2_D0030.tif" /></chemistry>
Representative compounds of formula IA-2 can be formed as shown in Scheme 9. Scheme 9<chemistry num="29"><img file="JP6830671B2_D0031.tif" /></chemistry>
For example, the compounds of formula IB can be formed as shown in Scheme 10. Scheme 10<chemistry num="30"><img file="JP6830671B2_D0032.tif" /></chemistry>
Representative compounds of formula IB can be formed as shown in Scheme 11. Scheme 11<chemistry num="31"><img file="JP6830671B2_D0033.tif" /></chemistry>
Representative compounds of formula IB can be formed as shown in Scheme 12. Scheme 12<chemistry num="32"><img file="JP6830671B2_D0034.tif" /></chemistry>
For example, the compound of formula ID can be formed as shown in Scheme 13. Scheme 13<chemistry num="33"><img file="JP6830671B2_D0035.tif" /></chemistry>
Representative compounds of formula ID-2 can be formed as shown in Scheme 14. Scheme 14<chemistry num="34"><img file="JP6830671B2_D0036.tif" /></chemistry>
Representative compounds of formula ID-2 can be formed as shown in Scheme 15. Scheme 15<chemistry num="35"><img file="JP6830671B2_D0037.tif" /></chemistry>
Representative compounds of formula ID-2 can be formed as shown in Scheme 16. Scheme 16<chemistry num="36"><img file="JP6830671B2_D0038.tif" /></chemistry>
For example, the compounds of formula IE can be formed as shown in Scheme 17. Scheme 17<chemistry num="37"><img file="JP6830671B2_D0039.tif" /></chemistry>
Pharmaceutical Compositions The present disclosure provides pharmaceutical compositions comprising one or more compounds of the present disclosure and a pharmaceutically acceptable carrier.
These pharmaceutical compositions can be prepared as is well known in the pharmaceutical field. In some embodiments, the compounds of the present disclosure may be mixed with a pharmaceutically acceptable carrier for the preparation of pharmaceutical compositions.
As used herein, the phrase "pharmaceutically acceptable" is within sound medical judgment and is suitable for use in contact with human and animal tissues, with excessive toxicity and irritant effects. , Allergic response, or other problems or complications, and show their compounds, materials, compositions, and / or dosage forms commensurate with a reasonable effect / risk ratio. In some embodiments, pharmaceutically acceptable compounds, materials, compositions, and / or dosage forms have been approved by the regulatory authority (eg, US Pharmacopeia, Chinese Pharmacopoeia, or European Medicines Agency). Listed in the generally recognized pharmacopoeia (eg, United States Pharmacopeia, Chinese Pharmacopoeia, or European Pharmacopoeia) for use in animals, more specifically in humans.
As used herein, the term "pharmaceutically acceptable carrier" refers to any and all solvents that are pharmaceutically acceptable and can facilitate the storage and administration of the compounds of the present disclosure to a subject. Indicates excipients, coatings, antibacterial and antifungal agents, flavoring agents, isotonic and absorption retarders, and the like. Pharmaceutically acceptable carriers that can be used in this disclosure include those commonly known in the art, such as "Remington Pharmaceutical Sciences" Mack Pub. Co., New Jersey (1991) (see the book. Included in the specification).
Examples of pharmaceutically acceptable carriers include, but are not limited to, solvents, liposomes, polymer excipients and the like.
In certain embodiments, the pharmaceutically acceptable carrier is a solvent in which the compounds of the present disclosure can be dissolved or dispersed . Illustrative examples of solvents include, but are not limited to, buffered saline, normal saline, phosphate buffer, citrate buffer, acetate buffer, bicarbonate buffer, sucrose solution, polysorbate solution, oil. , Estel, and alcohol.
In certain embodiments, the pharmaceutically acceptable carrier is a liposome, and the compounds of the present disclosure can be encapsulated within the aqueous or lipid portion of the liposome. Illustrative examples of liposomes are, but are not limited to, 3 [N- (N', N'-dimethylaminoethane) carbamoyl] cholesterol (DC-Chlo) -based liposomes, N- (2,3-diore). Liposomes based on oiloxy) propyl-N, N, N-trimethylammonium chloride (DOTMA) and liposomes based on 1,2-diore oiloxy-3-trimethylammonium propane (DOTAP).
In certain embodiments, pharmaceutically acceptable carriers are polymer excipients such as, but not limited to, microspheres, microcapsules, polymer micelles and dendrimers. The compounds of the present disclosure can be encapsulated, adhered, or coated to polymer-based components by methods known in the art.
The form of the pharmaceutical composition depends on many criteria, such as, but not limited to, the route of administration, the extent of the disease, or the dose administered. The pharmaceutical composition can be formulated for oral, nasal, rectal, transdermal, intravenous, or intramuscular administration. According to the desired route of administration, the pharmaceutical composition is in the form of tablets, pills, powders, lozenges, sachets, cashiers, suspensions, emulsions, solutions, syrups, aerosols (as solids or in liquid media) or ointments. Can be formulated with.
For oral administration, powders, granules, pills, tablets, caplets, capsules, and gel caps are acceptable as solid dosage forms. These include, for example, one or more compounds of the present disclosure and at least one carrier such as sucrose, lactose, cellulose sugar, mannitol, martitol, dextran, sorbitol, starch, agar, arginate, chitin, chitosan, pectin, tragacant gum. , Arabic gum, gelatin, collagen, casein, albumin, synthetic or semi-synthetic polymers or glycerides, methylcellulose, hydroxypropylmethyl-cellulose, and / or can be prepared by mixing with polyvinylpyrrolidone. In some embodiments, the solid dosage form for oral administration contains other carrier material components that are useful for manufacture or administration, such as lubricants, such as magnesium stearate, or preservatives, such as paraben or sorbic acid, or antioxidants. Agents such as ascorbic acid, tocopherols or cysteines, disintegrants, or chelating agents such as EDTA, binders, thickeners, flavoring agents or fragrances can be further included. In certain embodiments, the solid dosage form for oral administration may additionally include a dye or pigment for identification. Tablets and pills can also be treated with suitable coating materials known in the art, such as moisture-proof, enteric, or sustained-release coatings.
For oral administration, emulsions, syrups, elixirs, suspensions, slurries and solutions are acceptable as liquid dosage forms. They can be prepared, for example, by mixing one or more of the compounds of the present disclosure with sterile inert solvents such as, but not limited to, water, alcohols, oils and combinations thereof. In some embodiments, the inert diluent used in the liquid dosage form for oral administration includes oils such as, but not limited to, peanut oil, sesame oil, cottonseed oil, corn oil and olive oil. In some embodiments, the inert diluents used in the liquid dosage form for oral administration are esters of fatty acids, such as, but not limited to, ethyl oleate, isopropyl myristate, fatty acid glycerides and acetylated fatty acid glycerides. including. In some embodiments, the inert diluent used in the liquid dosage form for oral administration includes alcohols such as, but not limited to, ethanol, isopropyl alcohol, hexadecyl alcohol, glycerol and propylene glycol. In some embodiments, the liquid dosage form for oral administration is a surfactant, suspending agent, emulsifier, stabilizer, flavoring agent, chelating agent, preservative, antioxidant, solubilizer (eg, propylene glycol). , Glycerin, or sorbitol), dyes, or thickeners. In some embodiments, the liquid dosage form for oral administration can further include a pH regulator, such as, but not limited to, sodium hydroxide, hydrochloric acid, or malic acid.
The pharmaceutical compositions of the present disclosure can be formulated to provide immediate, sustained or delayed release of the active ingredient component after administration to a patient by using procedures known in the art. .. In some embodiments, the composition is formulated in sustained release form. As used herein, the term "sustained release form" refers to bioabsorption in a subject, primarily in the subject's gastrointestinal tract, for extended periods of time (continuous release) or at certain locations (controlled release). The release of the activator from the pharmaceutical composition to be effective is shown. In some embodiments, the long term can be about 1 hour to 24 hours, 2 hours to 12 hours, 3 hours to 8 hours, 4 hours to 6 hours, 1 to 2 days or more. In certain embodiments, the long term is at least about 4 hours, at least about 8 hours, at least about 12 hours, or at least about 24 hours.
In some embodiments, the sustained release form of the pharmaceutical composition is a tablet or pill, the tablet or pill being coated or otherwise formulated to provide a dosage form that provides the benefit of sustained action. .. Factors influencing drug release are well known to those of skill in the art and have been described in the art (Bamba et al., Int. J. Pharm., 1979, 2, 307), which is incorporated herein by reference in its entirety. For example, the rate of release of the activator can be controlled by dissolution of the activator in gastrointestinal fluid and subsequent diffusion from the pH-independent tablet or pill, as well as by the physical process of tablet disintegration and erosion. Can also be affected. In some embodiments, "Medical Applications of Controlled Release," Langer and Wise (eds.), CRC Pres., Boca Raton, Florida (1974); "Controlled Drug Bioavailability," Drug Product Design and Performance, Smolen and Ball ( Ed.), Wiley, New York (1984); Ranger and Peppas, 1983, J Macromol. Sci. Rev. Macromol Chem. 23:61; See also Levy et al., 1985, Science 228: 190; During et al., 1989, Ann. Neurol. 25:351; Howard et al., 1989, J. Neurosurg. 71: 105. Can be used for sustained release. The above references are incorporated herein by reference in their entirety.
In some embodiments, the polymer material is used for oral slow broadcasts. Examples of polymer materials include sodium carboxymethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose and hydroxyethyl cellulose. Other cellulose ethers are described in Alderman, Int. J. Pharm. Tech. & Prod. Mfr., 1984, 5 (3) 1-9, which is incorporated herein by reference in its entirety. In some embodiments, an enteric preparation can be used for oral sustained release administration. Examples of coating materials include polymers with pH-dependent solubility (ie, pH-controlled release), polymers with slow pH-dependent rates of swelling, dissolution or erosion (ie, time-controlled release), and polymers that are enzymatically degraded (ie, time-controlled release). That is, enzyme-controlled release) and polymers (ie, pressure-controlled release) that form a first layer that is destroyed by increased pressure. In some embodiments, the osmotic delivery system is Verma et al., Drug Dev. Ind. Used for oral sustained release as described in Pharm., 2000, 26: 695-708, which is incorporated herein by reference in its entirety. In a preferred embodiment, the OROS osmotic device is described by Theeuwes et al., U.S. Pat. No. 3,845,770; Theeuwes et al., U.S. Pat. No. 3,916,899, which is incorporated herein by reference in its entirety. Used for broadcasters. In some embodiments, the controlled release system can be placed in close proximity to the targets of the compounds and / or compositions of the present disclosure, thus requiring only a fraction of the systemic dose. See, for example, Goodson, in "Medical Applications of Controlled Release," above, vol. 2, pp. 115-138 (1984), which is incorporated herein by reference in its entirety. Other controlled release systems described in Langer, 1990, Science 249: 1527-1533, which are incorporated herein by reference in their entirety, may also be used.
The composition can be formulated in a unit dosage form, and each dose is about 0.5 to about 30 g, about 1 to about 20 g, about 2 to about 20 g, about 3 to about 20 g, about 4 to about 20 g, about 5 ~ About 20g, about 6 ~ about 20g, about 7 ~ about 20g, about 8 ~ about 20g, about 9 ~ about 20g, about 10 ~ about 20g, about 11 ~ about 20g, about 12 ~ about 20g, about 13 ~ about 20g, about 14 ~ about 20g, about 15 ~ about 20g, about 16 ~ about 20g, about 17 ~ about 20g, about 18 ~ about 20g, 2 ~ about 18g, about 2 ~ about 16g, about 2 ~ about 14g, about Contains 2 to about 12 g, about 2 to about 10 g, about 2 to about 9 g, about 2 to about 8 g, and about 2 to about 6 g of active material components. The term "unit dosage form" refers to physically separate units suitable as an integrated dose for human subjects and other mammals, each unit calculated to produce the desired therapeutic effect. A predetermined amount of active material is included with a suitable pharmaceutical carrier.
Methods for Treatment The present disclosure provides a method of treating a disease, comprising administering to a subject an effective amount of one or more compounds of the present disclosure.
In some embodiments, the disease is narcolepsy, excessive daytime sleepiness, cataplexy, neurodegenerative disease, sleep disorder syndrome, fibromyalgia, chronic fatigue, schizophrenia, hyperphagia, Parkinson's disease, Late-onset schizophrenia, or Alzheimer's disease. In some embodiments, the disease is excessive daytime drowsiness or cataplexy associated with narcolepsy.
Administration may be via oral, nasal, intravenous, subcutaneous, sublingual, or intramuscular administration.
The frequency of administration of the compound varies depending on what is administered, the amount of the therapeutic agent, the purpose of administration, the patient's condition, the mode of administration, and the like. Determining the frequency of administration is well within the ability of one of ordinary skill in the art. In some embodiments, administration is less than twice a day, less than once a day, less than twice a day, less than once every two days, less than once every three days, less than once every five days. , Once a week or less, or once every two weeks or less.
As used herein, the term "effective amount" means the amount of therapeutic agent effective to provide the desired outcome. Determining a therapeutically effective amount is well within the ability of one of ordinary skill in the art. In general, a therapeutically effective amount is given along with the subject's medical history, age, condition, gender, and the severity and type of medical condition in the subject, as well as the administration of other agents that inhibit the pathological process of neurodegenerative disorders. Can fluctuate. In some embodiments, the effective amount of the therapeutic agent is about 0.5 to about 30 g, about 1 to about 15 g, about 2 to about 15 g, about 3 to about 10 g, about 4 to about 10 g.
As used herein, the term "treating" or "treating" any disease or disorder is to delay the onset of the disease or disorder; to ameliorate at least one of the clinical manifestations associated with the disease or disorder; Indicates or both.
Pharmaceutical Uses The present disclosure also provides the use of one or more compounds of the present disclosure in the manufacture of agents for treating a disease. In some embodiments, the disease is narcolepsy, excessive daytime sleepiness, cataplexy, neurodegenerative disease, sleep disorder syndrome, fibromyalgia, chronic fatigue, schizophrenia, hyperphagia, Parkinson's disease, Late-onset schizophrenia, or Alzheimer's disease. In some embodiments, the disease is excessive daytime drowsiness or cataplexy associated with narcolepsy.
The present disclosure also provides compounds of the present disclosure for treating a disease. In some embodiments, the disease is narcolepsy, excessive daytime sleepiness, cataplexy, neurodegenerative disease, sleep disorder syndrome, fibromyalgia, chronic fatigue, schizophrenia, hyperphagia, Parkinson's disease. , Late-onset schizophrenia, or Alzheimer's disease. In some embodiments, the disease is excessive daytime drowsiness or cataplexy associated with narcolepsy.
Examples The following examples are presented to illustrate this disclosure. They are never intended to be restricted.
Example 1: Preparation and characterization of exemplary compounds The compounds included in the present disclosure can be prepared by different schemes. The detailed preparation process of 90 exemplary compounds by various schemes is described below and the characterization results are listed for each compound as well.
Unless otherwise stated, all reagents were purchased from commercial sources and were not further purified. Solvent drying by standard methods was used if required. The plate used for thin layer chromatography (TLC) was E. Merck silica gel 60F254 (0.24 nm thick) precoated on an aluminum plate and then under UV light (365 nm and 254 nm) or 5% dodeca. Visualization was performed by staining with ethanol containing molybdrinic acid and subsequent heating. Column chromatography was performed using silica gel (200-400 mesh) from a commercial source.<sup>1</sup>The H NMR spectrum was recorded at room temperature with an Agilent 400-MR NMR spectrometer (400.00 MHz at 1H). Solvent signal<sup>1</sup>Used as a reference for 1 H NMR (CDCl<sub>3</sub>, 7.26ppm; CD<sub>3</sub>OD, 3.31ppm; d<sub>6</sub>-DMSO, 2.50ppm; D<sub>2</sub>O, 4.79ppm). The multiplicity was explained using the following abbreviations: s = single line, d = double line, t = triple line, q = quadruple line, br.s. = broad single line, dd = double double Double line, td = triple double line, dt = double triple line, dq = double quadruple line, m = multiple line. Other abbreviations used in the details of the experiment are: Ar = aryl, Boc = tert-butyloxycarbonyl, Bn = benzyl, δ = tetramethylsilane represented by parts per million low magnetic field. Chemical shift, DCC = dicyclohexylcarbodiimide, DCM = dichloromethane, DIPEA = diisopropylethylamine, DMAP = 4- (dimethylamino) pyridine, DMF = N, N'-dimethylformamide, EA = ethyl acetate, Et = ethyl, HATU = 1- [Bis (dimethylamino) methylene] -1H-1,2,3-triazolo [4,5-b] pyridinium 3-oxide hexafluorophosphate, Hex. = hexane, Hz = Hertz, J = coupling constant (in NMR) ), Me = methyl, min = minutes (s), NMR = nuclear magnetic resonance, Ph = phenyl, ppm = parts per million, iPr = isopropyl, TBAF = tetrabutylammonium fluoride, tert = tertiary, TFA = Trifluoroacetic acid, THF = tetrahydrofuran, TLC = thin layer chromatography.
Scheme 1<chemistry num="38"><img file="JP6830671B2_D0040.tif" /></chemistry>
Example 1-1 Intermediate Compound 1': 4-Hydroxybutyl 2-methylbenzoate<chemistry num="39"><img file="JP6830671B2_D0041.tif" /></chemistry>
A solution of DCM (2 mL) containing 2-methylbenzoyl chloride (770 mg, 5 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (8 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine the organic phases, then wash with saturated brine (5 mL) and anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (470 mg, 45%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.91 (d, J = 8.0Hz, 1H), 7.40 (t, J = 7.4Hz, 1H). ), 7.26-7.22 (m, 2H), 4.34 (t, J = 6.8Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 2.60 (s, 3H), 1.90-1.83 (m, 2H) , 1.77-1.70 (m, 2H).
Compound 1: 4- (2-Methylbenzoyloxy) butanoic acid<chemistry num="40"><img file="JP6830671B2_D0042.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 2-methylbenzoate (400 mg, 1.92 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), then anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a crystalline solid (380 mg, 89%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.91 (d, J = 8.0Hz, 1H), 7.40 (t, J = 7.8Hz, 1H). ), 7.28-7.22 (m, 2H), 4.36 (t, J = 6.2Hz, 2H), 2.61 (s, 3H), 2.55 (t, J = 7.4Hz, 2H), 2.15-2.08 (m, 2H) ..
Example 1-2 Intermediate Compound 2': 4-Hydroxybutyl 3-Methylbenzoate<chemistry num="41"><img file="JP6830671B2_D0043.tif" /></chemistry>
A solution of DCM (5 mL) containing 3-methylbenzoyl chloride (616 mg, 4 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine the organic phases, then wash with saturated brine (5 mL) and anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (410 mg, 49%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using J = 6.6Hz, 2H), 3.70 (t, J = 6.4Hz, 2H), 2.38 (s, 3H), 2.07 (s, 1H), 1.89-1.82 (m, 2H), 1.75-1.68 (m, 2H) ).
Compound 2: 4- (3-Methylbenzoyloxy) butanoic acid<chemistry num="42"><img file="JP6830671B2_D0044.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3-methylbenzoate (350 mg, 1.68 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (333 mg, 89%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 7.83-7.81 (m, 2H), 7.36-7.28 (m, 2H), 4.36 (t, J = 6.2Hz, 2H), 2.53 (t, J = 7.2Hz, 2H), 2.38 (s, 3H), 2.14-2.07 (m, 2H).
Example 1-3 Intermediate Compound 3': 4-Hydroxybutyl 4-Methylbenzoate<chemistry num="43"><img file="JP6830671B2_D0045.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-methylbenzoyl chloride (616 mg, 4 mmol) drop by drop, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (470 mg, 56%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.91 (d, J = 8.4Hz, 2H), 7.20 (d, J = 8.4Hz, 2H). ), 4.32 (t, J = 6.6Hz, 2H), 3.69 (t, J = 6.6Hz, 2H), 2.38 (s, 3H), 2.19 (br.s., 1H), 1.87-1.80 (m, 2H) ), 1.74-1.67 (m, 2H).
Compound 3: 4- (4-Methylbenzoyloxy) butanoic acid<chemistry num="44"><img file="JP6830671B2_D0046.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 4-methylbenzoate (400 mg, 1.92 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a crystalline solid (364 mg, 85%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.91 (d, J = 8.0Hz, 2H), 7.23 (d, J = 8.0Hz, 2H). ), 4.36 (t, J = 6.2Hz, 2H), 2.54 (t, J = 7.4Hz, 2H), 2.40 (s, 3H), 2.14-2.08 (m, 2H).
Examples 1-4 Intermediate Compound 4': 4-Hydroxybutyl 4-Fluorobenzoate<chemistry num="45"><img file="JP6830671B2_D0047.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-fluorobenzoyl chloride (632 mg, 4 mmol) drop by drop, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (540 mg, 64%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 8.07-8.04 (m, 2H), 7.11 (t, J = 8.6Hz, 2H), 4.36. (t, J = 6.4Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 1.90-1.83 (m, 2H), 1.76-1.69 (m, 2H), 1.41 (br.s., 1H) ..
Compound 4: 4- (4-fluorobenzoyloxy) butanoic acid<chemistry num="46"><img file="JP6830671B2_D0048.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 4-fluorobenzoate (500 mg, 2.36 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a crystalline solid (356 mg, 67%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.06-8.03 (m, 2H), 7.11 (t, J = 8.6Hz, 2H), 4.38. (t, J = 6.4Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.15-2.07 (m, 2H).
Example 1-5 Intermediate Compound 5': 4-Hydroxybutyl 2,4,6-trimethylbenzoate<chemistry num="47"><img file="JP6830671B2_D0049.tif" /></chemistry>
A solution of DCM (5 mL) containing 2,4,6-trimethylbenzoyl chloride (728 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (600 mg, 64%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 6.85 (s, 2H), 4.34 (t, J = 6.6Hz, 2H), 3.69 (t). , J = 6.6Hz, 2H), 2.29 (s, 6H), 2.28 (s, 3H), 1.88-1.80 (m, 2H), 1.73-1.66 (m, 2H), 1.49 (br.s., 1H) ..
Compound 5: 4- (2,4,6-trimethylbenzoyloxy) butanoic acid<chemistry num="48"><img file="JP6830671B2_D0050.tif" /></chemistry>
Add Jones reagent in small portions to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 2,4,6-trimethylbenzoate (500 mg, 2.12 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. bottom. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1-3: 1 to give the title compound as a white solid (450 mg, 85%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 6.85 (s, 2H), 4.36 (t, J = 6.4Hz, 2H), 2.51 (t). , J = 7.2Hz, 2H), 2.29 (s, 6H), 2.28 (s, 3H), 2.12-2.05 (m, 2H).
Example 1-6 Intermediate Compound 6': 4-Hydroxybutyl 2-methoxybenzoate<chemistry num="49"><img file="JP6830671B2_D0051.tif" /></chemistry>
A solution of DCM (5 mL) containing 2-methoxybenzoyl chloride (680 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (370 mg, 41%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.79 (dd, J = 1.6, 7.6Hz, 1H), 7.49-7.45 (m, 1H). , 7.00-6.97 (m, 2H), 4.35 (t, J = 6.2Hz, 2H), 3.90 (s, 3H), 3.77-3.68 (m, 2H), 1.91-1.83 (m, 2H), 1.77-1.69 (m, 2H), 1.56 (br.s., 1H).
Compound 6: 4- (2-Methoxybenzoyloxy) butanoic acid<chemistry num="50"><img file="JP6830671B2_D0052.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 2-methoxybenzoate (300 mg, 1.34 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a crystalline solid (244 mg, 76%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.78 (dd, J = 1.8, 7.8Hz, 1H), 7.49-7.45 (m, 1H). , 7.00-6.96 (m, 2H), 4.36 (t, J = 6.0Hz, 2H), 3.90 (s, 3H), 2.57 (t, J = 7.4Hz, 2H), 2.13-2.07 (m, 2H).
Example 1-7 Intermediate Compound 7': 4-Hydroxybutyl 3-methoxybenzoate<chemistry num="51"><img file="JP6830671B2_D0053.tif" /></chemistry>
A solution of DCM (5 mL) containing 3-methoxybenzoyl chloride (680 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (420 mg, 47%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.63 (d, J = 7.6Hz, 1H), 7.56 (s, 1H), 7.34 (t). , J = 8.0Hz, 1H), 7.10 (dd, J = 2.4, 8.0Hz, 1H), 4.36 (t, J = 6.4Hz, 2H), 3.85 (s, 3H), 3.73 (t, J = 6.2Hz) , 2H), 1.91-1.84 (m, 2H), 1.76-1.69 (m, 2H).
Compound 7: 4- (3-Methoxybenzoyloxy) butanoic acid<chemistry num="52"><img file="JP6830671B2_D0054.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3-methoxybenzoate (350 mg, 1.56 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 8: 1-3: 1 to give the title compound as a crystalline solid (287 mg, 77%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.63 (d, J = 8.0Hz, 1H), 7.55 (s, 1H), 7.35 (t). , J = 7.8Hz, 1H), 7.10 (dd, J = 2.4, 8.0Hz, 1H), 4.39 (t, J = 6.4Hz, 2H), 3.86 (s, 3H), 2.54 (t, J = 7.2Hz) , 2H), 2.16-2.08 (m, 2H).
Example 1-8 Intermediate Compound 8': 4-Hydroxybutyl 4-Methoxybenzoate<chemistry num="53"><img file="JP6830671B2_D0055.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-methoxybenzoyl chloride (680 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (500 mg, 56%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.99 (d, J = 9.2Hz, 2H), 6.91 (d, J = 8.8Hz, 2H). ), 4.33 (t, J = 6.6Hz, 2H), 3.86 (s, 3H), 3.73 (s, 2H), 1.89-1.82 (m, 2H), 1.76-1.69 (m, 2H), 1.44 (br. s., 1H).
Compound 8: 4- (4-Methoxybenzoyloxy) butanoic acid<chemistry num="54"><img file="JP6830671B2_D0056.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 4-methoxybenzoate (400 mg, 1.79 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a white solid (370 mg, 87%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.99 (d, J = 9.2Hz, 2H), 6.92 (d, J = 8.8Hz, 2H). ), 4.35 (t, J = 6.2Hz, 2H), 3.86 (s, 3H), 2.54 (t, J = 7.2Hz, 2H), 2.13-2.08 (m, 2H).
Example 1-9 Intermediate Compound 9': 4-Hydroxybutyl 2-chlorobenzoate<chemistry num="55"><img file="JP6830671B2_D0057.tif" /></chemistry>
A solution of DCM (10 mL) containing 2-chlorobenzoyl chloride (2 g, 11.43 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (3085 mg, 34.28 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (50 mL) containing N (2308 mg, 22.85 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for 16 hours or longer. Then, the reaction mixture, H<sub>2</sub>Dilute with O (30 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with brine (20 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1 to give the title compound as a colorless oil (1.8 g, 69%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.81 (dd, J = 1.4, 7.8Hz, 1H), 7.45-7.38 (m, 2H). , 7.34-7.28 (m, 1H), 4.38 (t, J = 6.4Hz, 2H), 3.71 (t, J = 6.4Hz, 2H), 1.91-1.84 (m, 2H), 1.77-1.70 (m, 2H) ).
Compound 9: 4- (2-chlorobenzoyloxy) butanoic acid<chemistry num="56"><img file="JP6830671B2_D0058.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2-chlorobenzoate (1.6 g, 7.02 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (20 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (3 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a crystalline solid (1 g, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.82 (dd, J = 1.2, 8.0Hz, 1H), 7.49-7.38 (m, 2H). , 7.34-7.29 (m, 1H), 4.41 (t, J = 6.2Hz, 2H), 2.57 (t, J = 7.2Hz, 2H), 2.16-2.09 (m, 2H).
Examples 1-10 Intermediate Compound 10': 4-Hydroxybutyl 3-chlorobenzoate<chemistry num="57"><img file="JP6830671B2_D0059.tif" /></chemistry>
A solution of DCM (5 mL) containing 3-chlorobenzoyl chloride (696 mg, 4 mmol) is added drop by drop for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (550 mg, 60%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.00 (s, 1H), 7.92 (d, J = 7.6Hz, 1H), 7.52 (dd). , J = 0.8, 8.4Hz, 1H), 7.38 (t, J = 7.8Hz, 1H), 4.36 (t, J = 6.4Hz, 2H), 3.73 (dd, J = 6.2, 10.6Hz, 2H), 1.91 -1.84 (m, 2H), 1.76-1.69 (m, 3H).
Compound 10: 4- (3-chlorobenzoyloxy) butanoic acid<chemistry num="58"><img file="JP6830671B2_D0060.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3-chlorobenzoate (500 mg, 2.19 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (420 mg, 79%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.00 (s, 1H), 7.92 (d, J = 7.6Hz, 1H), 7.55-7.52. (m, 1H), 7.39 (t, J = 7.8Hz, 1H), 4.39 (t, J = 6.2Hz, 2H), 2.55 (t, J = 7.2Hz, 2H), 2.16-2.09 (m, 2H) ..
Example 1-11 Intermediate Compound 11': 4-Hydroxybutyl 4-chlorobenzoate<chemistry num="59"><img file="JP6830671B2_D0061.tif" /></chemistry>
A solution of DCM (10 mL) containing 4-chlorobenzoyl chloride (2 g, 11.43 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (3085 mg, 34.28 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (50 mL) containing N (2308 mg, 22.85 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (30 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with brine (20 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a crystalline solid (1.6 g, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.97 (d, J = 8.4Hz, 2H), 7.41 (d, J = 8.4Hz, 2H). ), 4.36 (t, J = 6.6Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 1.90-1.84 (m, 2H), 1.75-1.69 (m, 2H).
Compound 11: 4- (4-chlorobenzoyloxy) butanoic acid<chemistry num="60"><img file="JP6830671B2_D0062.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-chlorobenzoate (1.5 g, 6.58 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 16 hours or more, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (20 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (3 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a crystalline solid (600 mg, 38%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.96 (d, J = 8.0Hz, 2H), 7.41 (d, J = 8.0Hz, 2H). ), 4.39 (t, J = 6.2Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.15-2.07 (m, 2H).
Examples 1-12 Intermediate Compound 12': 4-Hydroxybutyl 3-cyanobenzoate<chemistry num="61"><img file="JP6830671B2_D0063.tif" /></chemistry>
A solution of DCM (5 mL) containing 3-cyanobenzoyl chloride (660 mg, 4 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (450 mg, 51%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.31 (s, 1H), 8.26 (d, J = 8.0Hz, 1H), 7.83 (d). , J = 7.6Hz, 1H), 7.58 (t, J = 8.0Hz, 1H), 4.39 (t, J = 6.4Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 1.92-1.85 (m) , 2H), 1.76-1.69 (m, 2H).
Compound 12: 4- (3-Cyanobenzoyloxy) butanoic acid<chemistry num="62"><img file="JP6830671B2_D0064.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3-cyanobenzoate (400 mg, 1.83 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a white solid (330 mg, 77%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.31 (s, 1H), 8.26 (d, J = 8.0Hz, 1H), 7.85 (d). , J = 7.6Hz, 1H), 7.59 (t, J = 7.8Hz, 1H), 4.43 (t, J = 6.4Hz, 2H), 2.56 (t, J = 7.2Hz, 2H), 2.18-2.11 (m) , 2H).
Example 1-13 Intermediate Compound 13': 4-Hydroxybutyl 4-tert-Butylbenzoate<chemistry num="63"><img file="JP6830671B2_D0065.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-tert-butylbenzoyl chloride (784 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (530 mg, 53%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.97 (d, J = 8.0Hz, 2H), 7.45 (d, J = 8.8Hz, 2H). ), 4.35 (t, J = 6.4Hz, 2H), 3.73 (t, J = 6.2Hz, 2H), 1.91-1.83 (m, 2H), 1.76-1.71 (m, 2H), 1.34 (s, 9H) ..
Compound 13: 4- (4-tert-Butylbenzoyloxy) butanoic acid<chemistry num="64"><img file="JP6830671B2_D0066.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 4-tert-butylbenzoate (450 mg, 1.8 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a white solid (370 mg, 79%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.96 (d, J = 8.4Hz, 2H), 7.45 (d, J = 8.8Hz, 2H). ), 4.37 (t, J = 6.2Hz, 2H), 2.55 (t, J = 7.4Hz, 2H), 2.15-2.06 (m, 2H), 1.34 (s, 9H).
Example 1-14 Intermediate Compound 14': 4-Hydroxybutyl 3- (trifluoromethyl) benzoate<chemistry num="65"><img file="JP6830671B2_D0067.tif" /></chemistry>
A solution of DCM (5 mL) containing 3- (trifluoromethyl) benzoyl chloride (832 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for 12 hours or longer. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (670 mg, 64%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.29 (s, 1H), 8.23 (d, J = 8.0Hz, 1H), 7.82 (d). , J = 8.0Hz, 1H), 7.59 (t, J = 7.8Hz, 1H), 4.40 (t, J = 6.4Hz, 2H), 3.74 (t, J = 6.6Hz, 2H), 1.93-1.86 (m) , 2H), 1.77-1.70 (m, 2H), 1.42 (br.s., 1H).
Compound 14: 4- (3- (trifluoromethyl) benzoyloxy) butanoic acid<chemistry num="66"><img file="JP6830671B2_D0068.tif" /></chemistry>
Add Jones reagent in small portions to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3- (trifluoromethyl) benzoate (600 mg, 2.29 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. bottom. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (400 mg, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.29 (s, 1H), 8.22 (d, J = 8.0Hz, 1H), 7.82 (d). , J = 7.6Hz, 1H), 7.59 (t, J = 7.6Hz, 1H), 4.43 (t, J = 6.4Hz, 2H), 2.55 (t, J = 7.4Hz, 2H), 2.18-2.12 (m) , 2H).
Examples 1-15 Intermediate Compound 15': 4-Hydroxybutyl 3,4,5-trimethoxybenzoate<chemistry num="67"><img file="JP6830671B2_D0069.tif" /></chemistry>
A solution of DCM (5 mL) containing 3,4,5-trimethoxybenzoyl chloride (920 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for 12 hours or longer. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-4: 1 to give the title compound as a colorless oil (700 mg, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.29 (s, 2H), 4.35 (t, J = 6.6Hz, 2H), 3.90 (s). , 9H), 3.77-3.69 (m, 2H), 1.921.84 (m, 2H), 1.75-1.68 (m, 2H), 1.48 (br.s., 1H).
Compound 15: 4- (3,4,5-trimethoxybenzoyloxy) butanoic acid<chemistry num="68"><img file="JP6830671B2_D0070.tif" /></chemistry>
Gradually add Jones reagent to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3,4,5-trimethoxybenzoate (600 mg, 2.11 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. Added. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 8: 1-3: 1 to give the title compound as a crystalline solid (440 mg, 70%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.28 (s, 2H), 4.37 (t, J = 6.4Hz, 2H), 3.90 (s). , 9H), 2.52 (t, J = 7.2Hz, 2H), 2.15-2.08 (m, 2H).
Example 1-16 Intermediate Compound 16': 4-Hydroxybutyl 4-Ethylbenzoate<chemistry num="69"><img file="JP6830671B2_D0071.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-ethylbenzoyl chloride (500 mg, 2.98 mmol), drop by drop, for 10 minutes, butane-1,4-diol (534 mg, 5.93 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (599 mg, 5.93 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-6: 1 to give the title compound as a colorless oil (450 mg, 68%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.97 (s, 1H), 7.94 (s, 1H), 7.27 (s, 1H), 7.25. (s, 1H), 4.35 (t, J = 6.4Hz, 2H), 3.73 (t, J = 6.2Hz, 2H), 2.70 (q, J = 7.6Hz, 2H), 1.90-1.83 (m, 2H) , 1.77-1.70 (m, 2H), 1.34 (br.s., 1H), 1.25 (t, J = 7.6Hz, 3H).
Compound 16: 4- (4-ethylbenzoyloxy) butanoic acid<chemistry num="70"><img file="JP6830671B2_D0072.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-ethylbenzoate (450 mg, 2.03 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (270 mg, 56%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.96 (s, 1H), 7.94 (s, 1H), 7.27 (s, 1H), 7.25. (s, 1H), 4.37 (t, J = 6.2Hz, 2H), 2.70 (q, J = 7.6Hz, 2H), 2.55 (t, J = 7.4Hz, 2H), 2.15-2.09 (m, 2H) , 1.25 (t, J = 7.6Hz, 3H).
Example 1-17 Intermediate Compound 17': 4-Hydroxybutyl 2,3-Dimethylbenzoate<chemistry num="71"><img file="JP6830671B2_D0073.tif" /></chemistry>
A solution of DCM (5 mL) containing 2,3-dimethylbenzoyl chloride (500 mg, 2.97 mmol), drop by drop, for 10 minutes, butane-1,4-diol (534 mg, 5.93 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (599 mg, 5.93 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 3 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a colorless oil (390 mg, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.61 (d, J = 7.6Hz, 1H), 7.28 (d, J = 7.6Hz, 1H). ), 7.13 (t, J = 7.8Hz, 1H), 4.34 (t, J = 6.6Hz, 2H), 3.73 (t, J = 6.0Hz, 2H), 2.45 (s, 3H), 2.32 (s, 3H) ), 1.90-1.83 (m, 2H), 1.78-1.69 (m, 2H), 1.36 (br.s., 1H).
Compound 17: 4- (2,3-dimethylbenzoyloxy) butanoic acid<chemistry num="72"><img file="JP6830671B2_D0074.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2,3-dimethylbenzoate (350 mg, 1.58 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-6: 1 to give the title compound as a white solid (230 mg, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.61 (d, J = 7.6Hz, 1H), 7.28 (d, J = 7.2Hz, 1H). ), 7.13 (t, J = 7.6Hz, 1H), 4.35 (t, J = 6.2Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.45 (s, 3H), 2.32 (s, 3H) ), 2.15-2.08 (m, 2H).
Example 1-18 Intermediate Compound 18': 4-Hydroxybutyl 3,5-dimethoxybenzoate<chemistry num="73"><img file="JP6830671B2_D0075.tif" /></chemistry>
A solution of DCM (5 mL) containing 3,5-dimethoxybenzoyl chloride (500 mg, 2.49 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 3 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a colorless oil (430 mg, 68%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.18 (d, J = 2.4Hz, 2H), 6.65 (t, J = 2.0Hz, 1H). ), 4.36 (t, J = 6.4Hz, 2H), 3.83 (s, 6H), 3.73 (t, J = 6.2Hz, 2H), 1.90-1.83 (m, 2H), 1.76-1.69 (m, 2H) ..
Compound 18: 4- (3,5-dimethoxybenzoyloxy) butanoic acid<chemistry num="74"><img file="JP6830671B2_D0076.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 3,5-dimethoxybenzoate (400 mg, 1.57 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (200 mg, 47%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.16 (d, J = 2.4Hz, 2H), 6.64 (t, J = 2.0Hz, 1H). ), 4.37 (t, J = 6.2Hz, 2H), 3.82 (s, 6H), 2.52 (t, J = 7.2Hz, 2H), 2.14-2.07 (m, 2H).
Example 1-19 Intermediate Compound 19': 4-Hydroxybutyl 3,5-dimethylbenzoate<chemistry num="75"><img file="JP6830671B2_D0077.tif" /></chemistry>
A solution of DCM (5 mL) containing 3,5-dimethylbenzoyl chloride (500 mg, 2.96 mmol), drop by drop, for 10 minutes, butane-1,4-diol (534 mg, 5.93 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (599 mg, 5.93 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a colorless oil (400 mg, 61%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.65 (s, 2H), 7.19 (s, 1H), 4.35 (t, J = 6.4Hz). , 2H), 3.73 (s, 2H), 2.36 (s, 6H), 1.90-1.83 (m, 2H), 1.77-1.70 (m, 2H).
Compound 19: 4- (3,5-dimethylbenzoyloxy) butanoic acid<chemistry num="76"><img file="JP6830671B2_D0078.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 3,5-dimethylbenzoate (400 mg, 1.8 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (300 mg, 70%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.64 (s, 2H), 7.19 (s, 1H), 4.36 (t, J = 6.0Hz). , 2H), 2.55 (t, J = 7.4Hz, 2H), 2.36 (s, 6H), 2.15-2.08 (m, 2H).
Example 1-20 Intermediate Compound 20': 4-Hydroxybutyl Citrate<chemistry num="77"><img file="JP6830671B2_D0079.tif" /></chemistry>
A solution of DCM (5 mL) containing cinnamoyl chloride (664 mg, 4 mmol) drop by drop, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (455 mg, 52%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.69 (d, J = 16.0Hz, 1H), 7.54-7.52 (m, 2H), 7.39. (t, J = 3.2Hz, 3H), 6.44 (d, J = 16.0Hz, 1H), 4.25 (t, J = 6.4Hz, 2H), 3.72 (t, J = 6.2Hz, 2H), 1.85-1.78 (m, 2H), 1.73-1.66 (m, 2H), 1.44 (br.s., 1H).
Compound 20: (E) -4- (cinnamoyloxy) butanoic acid<chemistry num="78"><img file="JP6830671B2_D0080.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl cinnate (400 mg, 1.81 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (370 mg, 87%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.68 (d, J = 16.0Hz, 1H), 7.54-7.52 (m, 2H), 7.40. -7.38 (m, 3H), 6.43 (d, J = 16.0Hz, 1H), 4.26 (t, J = 6.2Hz, 2H), 2.48 (t, J = 7.2Hz, 2H), 2.07-2.01 (m, 2H).
Example 1-21 Intermediate compound 21': 4-Hydroxybutyl 3-phenylpropanoate<chemistry num="79"><img file="JP6830671B2_D0081.tif" /></chemistry>
A solution of DCM (5 mL) containing 3-phenylpropanoyl chloride (672 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (370 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.31-7.27 (m, 2H), 7.21-7.19 (m, 3H), 4.10 (t, J = 6.6Hz, 2H), 3.65 (t, J = 6.4Hz, 2H), 2.95 (t, J = 7.8Hz, 2H), 2.63 (t, J = 7.6Hz, 2H), 1.73-1.66 (m, 2H), 1.60-1.54 (m, 2H), 1.33 (br.s., 1H).
Compound 21: 4- (3-Phenylpropanoyloxy) butanoic acid<chemistry num="80"><img file="JP6830671B2_D0082.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 3-phenylpropanoate (300 mg, 1.35 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (277 mg, 87%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.31-7.27 (m, 2H), 7.22-7.19 (m, 3H), 4.12 (t, J = 6.2Hz, 2H), 2.95 (t, J = 7.8Hz, 2H), 2.63 (t, J = 7.6Hz, 2H), 2.37 (t, J = 7.4Hz, 2H), 1.96-1.90 (m, 2H).
Example 1-22 Intermediate compound 22': 4-Hydroxybutyl pivalate<chemistry num="81"><img file="JP6830671B2_D0083.tif" /></chemistry>
A solution of pivaloyl chloride (1.2 g, 10 mmol), drop by drop, for 10 minutes, butane-1,4-diol (2.7 g, 30 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (30 mL) containing N (2.02 g, 20 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for 1 hour or longer. Then, the reaction mixture, H<sub>2</sub>Dilute with O (10 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (15 mL). Combine organic phases, wash with brine (15 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 20: 1-5: 1 to give the title compound as a colorless oil (1.5 g, 86%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.09 (t, J = 6.0Hz, 2H), 3.68 (t, J = 6.4Hz, 2H). ), 1.74-1.70 (m, 2H), 1.65-1.61 (m, 2H), 1.19 (s, 9H).
Compound 22: 4- (pivaloyloxy) butanoic acid<chemistry num="82"><img file="JP6830671B2_D0084.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (20 mL) containing 4-hydroxybutyl pivalate (1.0 g, 5.75 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (20 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (700 mg, 65%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.11 (t, J = 6.4Hz, 2H), 2.46 (t, J = 7.4Hz, 2H). ), 2.02-1.95 (m, 2H), 1.19 (s, 9H).
Example 1-23 Intermediate Compound 23': 4-Hydroxybutyl 2-ethylbutanoate<chemistry num="83"><img file="JP6830671B2_D0085.tif" /></chemistry>
A solution of DCM (5 mL) containing 2-ethylbutanoyl chloride (500 mg, 3.7 mmol), drop by drop, for 10 minutes, butane-1,4-diol (669 mg, 7.43 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (750 mg, 7.43 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 3 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (450 mg, 65%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.13 (t, J = 6.4Hz, 2H), 3.73-3.64 (m, 2H), 2.23 -2.16 (m, 1H), 1.77-1.70 (m, 2H), 1.68-1.58 (m, 4H), 1.55-1.46 (m, 2H), 0.89 (t, J = 7.4Hz, 6H).
Compound 23: 4- (2-ethylbutanoyloxy) butanoic acid<chemistry num="84"><img file="JP6830671B2_D0086.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2-ethylbutanoate (450 mg, 2.39 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (300 mg, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.14 (t, J = 6.2Hz, 2H), 2.46 (t, J = 7.6Hz, 2H). ), 2.24-2.17 (m, 1H), 2.02-1.95 (m, 2H), 1.66-1.46 (m, 4H), 0.89 (t, J = 7.4Hz, 6H).
Example 1-24 Intermediate Compound 24': 4-Hydroxybutyl 2-propylpentanoate<chemistry num="85"><img file="JP6830671B2_D0087.tif" /></chemistry>
A solution of DCM (5 mL) containing 2-propylpentanoyl chloride (1 g, 6.13 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (1107 mg, 12.3 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (1242 mg, 12.3 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (700 mg, 53%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.11 (t, J = 6.6Hz, 2H), 3.69 (q, J = 5.8Hz, 2H). ), 2.39-2.32 (m, 1H), 1.77-1.69 (m, 2H), 1.68-1.60 (m, 3H), 1.58-1.53 (m, 1H), 1.45-1.36 (m, 3H), 1.33-1.24 (m, 4H), 0.89 (t, J = 7.2Hz, 6H).
Compound 24: 4- (2-propylpentanoyloxy) butanoic acid<chemistry num="86"><img file="JP6830671B2_D0088.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2-propylpentanoate (500 mg, 2.31 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (160 mg, 30%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.12 (t, J = 6.0Hz, 2H), 2.46 (t, J = 7.6Hz, 2H). ), 2.41-2.31 (m, 1H), 2.01-1.95 (m, 2H), 1.63-1.54 (m, 2H), 1.45-1.37 (m, 2H), 1.33-1.24 (m, 4H), 0.89 (t) , J = 7.2Hz, 6H).
Example 1-25 Intermediate Compound 25': 4-Hydroxybutyl Cyclopentane Carboxyrate<chemistry num="87"><img file="JP6830671B2_D0089.tif" /></chemistry>
A solution of DCM (5 mL) containing cyclopentanecarbonyl chloride (528 mg, 4 mmol) drop by drop, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (520 mg, 70%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 4.10 (t, J = 6.4Hz, 2H), 3.68 (t, J = 6.0Hz, 2H). ), 2.76-2.68 (m, 1H), 1.92-1.62 (m, 10H), 1.60-1.53 (m, 2H), 1.41 (br.s., 1H).
Compound 25: 4- (cyclopentanecarbonyloxy) butanoic acid<chemistry num="88"><img file="JP6830671B2_D0090.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutylcyclopentanecarboxylate (450 mg, 2.42 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (373 mg, 77%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.12 (t, J = 6.2Hz, 2H), 2.76-2.68 (m, 1H), 2.45 (t, J = 7.2Hz, 2H), 2.01-1.94 (m, 2H), 1.92-1.84 (m, 2H), 1.82-1.65 (m, 4H), 1.61-1.50 (m, 2H).
Example 1-26 Intermediate Compound 26': 4-Hydroxybutylcyclohexanecarboxylate<chemistry num="89"><img file="JP6830671B2_D0091.tif" /></chemistry>
A solution of DCM (5 mL) containing cyclohexanecarbonyl chloride (584 mg, 4 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-3: 1 to give the title compound as a colorless oil (440 mg, 55%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.08 (t, J = 6.2Hz, 2H), 3.66 (t, J = 6.2Hz, 2H). ), 2.32-2.24 (m, 1H), 1.88 (d, J = 13.2Hz, 2H), 1.76-1.58 (m, 8H), 1.48-1.37 (m, 2H), 1.31-1.15 (m, 3H).
Compound 26: 4- (cyclohexanecarbonyloxy) butanoic acid<chemistry num="90"><img file="JP6830671B2_D0092.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutylcyclohexanecarboxylate (400 mg, 2 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (350 mg, 82%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.11 (t, J = 6.4Hz, 2H), 2.45 (t, J = 7.4Hz, 2H). ), 2.29 (tt, J = 3.6, 11.3Hz, 1H), 2.01-1.94 (m, 2H), 1.91-1.87 (m, 2H), 1.76-1.69 (m, 2H), 1.65-1.62 (m, 1H) ), 1.48-1.38 (m, 2H), 1.33-1.19 (m, 3H).
Example 1-27 Intermediate Compound 27': 4-Hydroxybutyl 2-acetoxyacetate<chemistry num="91"><img file="JP6830671B2_D0093.tif" /></chemistry>
A solution of DCM (5 mL) containing 2-chloro-2-oxoethyl acetate (544 mg, 4 mmol), drop by drop, for 10 minutes, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1-5: 1 to give the title compound as a colorless oil (500 mg, 66%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.60 (s, 2H), 4.22 (t, J = 6.4Hz, 2H), 3.68 (dd). , J = 5.8, 10.6Hz, 2H), 2.16 (s, 3H), 1.81-1.72 (m, 2H), 1.68-1.60 (m, 2H), 1.39 (br.s., 1H).
Compound 27: 4- (2-acetoxyacetoxy) butanoic acid<chemistry num="92"><img file="JP6830671B2_D0094.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 2-acetoxyacetate (400 mg, 2.11 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 8: 1-3: 1 to give the title compound as a colorless oil (370 mg, 86%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.60 (s, 2H), 4.24 (t, J = 6.2Hz, 2H), 2.46 (t). , J = 7.4Hz, 2H), 2.16 (s, 3H), 2.04-1.97 (m, 2H).
Example 1-28 Intermediate Compound 28': (4-Hydroxybutyl) Ethyl Carbonate<chemistry num="93"><img file="JP6830671B2_D0095.tif" /></chemistry>
A solution of DCM (5 mL) containing ethyl carbonochloridate (1 g, 9.17 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (1659 mg, 18.43 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (1861 mg, 18.43 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (700 mg, 47%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.22-4.16 (m, 4H), 3.68 (q, J = 5.8Hz, 2H), 1.81. -1.74 (m, 2H), 1.69-1.62 (m, 2H), 1.38 (t, J = 5.0Hz, 1H), 1.31 (t, J = 7.0Hz, 3H).
Compound 28: 4- (ethoxycarbonyloxy) butanoic acid<chemistry num="94"><img file="JP6830671B2_D0096.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing ethyl (4-hydroxybutyl) ethyl carbonate (500 mg, 3.09 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (70 mg, 13%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.22-4.17 (m, 4H), 2.50 (t, J = 7.2Hz, 2H), 2.05 -1.98 (m, 2H), 1.31 (t, J = 7.2Hz, 3H).
Example 1-29 Intermediate compound 29': 4-Hydroxybutyl isopropyl carbonate<chemistry num="95"><img file="JP6830671B2_D0097.tif" /></chemistry>
A solution of DCM (10 mL) containing isopropylcarbonochloridate (10 ml, 1.0 M / L, 10 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (1800 mg, 20 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (20 mL) containing N (2020 mg, 20 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (1.58 g, 90%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.90-4.84 (m, 1H), 4.16 (t, J = 6.6Hz, 2H), 3.68. (t, J = 6.2Hz, 2H), 1.80-1.73 (m, 2H), 1.69-1.62 (m, 2H), 1.29 (d, J = 5.6Hz, 6H).
Compound 29: 4- (isopropoxycarbonyloxy) butanoic acid<chemistry num="96"><img file="JP6830671B2_D0098.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl isopropyl carbonate (800 mg, 4.55 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (260 mg, 30%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.90-4.84 (m, 1H), 4.18 (t, J = 6.2Hz, 2H), 2.50. (t, J = 7.2Hz, 2H), 2.05-1.97 (m, 2H), 1.30 (d, J = 6.0Hz, 6H). Example 1-30
Intermediate compound 30': 4-Hydroxybutyl isobutyl carbonate<chemistry num="97"><img file="JP6830671B2_D0099.tif" /></chemistry>
A solution of DCM (5 mL) containing isobutyl carbonochloridate (544 mg, 4 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-6: 1 to give the title compound as a colorless oil (250 mg, 33%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.18 (t, J = 6.4Hz, 2H), 3.91 (d, J = 6.8Hz, 2H). ), 3.69 (dd, J = 5.4, 11.0Hz, 2H), 1.81-1.75 (m, 3H), 1.70-1.62 (m, 2H), 0.96 (s, 3H), 0.94 (s, 3H).
Compound 30: 4- (isobutoxycarbonyloxy) butanoic acid<chemistry num="98"><img file="JP6830671B2_D0100.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl isobutyl carbonate (200 mg, 1.1 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 8: 1-3: 1 to give the title compound as a colorless oil (110 mg, 51%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 4.20 (t, J = 6.4Hz, 2H), 3.92 (d, J = 6.8Hz, 2H). ), 2.49 (t, J = 7.2Hz, 2H), 2.06-1.93 (m, 3H), 0.96 (s, 3H), 0.94 (s, 3H).
Example 1-31 Intermediate compound 31': Benzyl (4-hydroxybutyl) carbonate<chemistry num="99"><img file="JP6830671B2_D0101.tif" /></chemistry>
A solution of DCM (5 mL) containing benzyl carbonochloridate (1 g, 5.86 mmol), drop by drop, for 10 minutes, butane-1,4-diol (1055 mg, 11.72 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (1184 mg, 11.72 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 3 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a colorless oil (292 mg, 22%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.40-7.32 (m, 5H), 5.16 (s, 2H), 4.20 (t, J = 6.6Hz, 2H), 3.68 (q, J = 6.0Hz, 2H), 1.81-1.74 (m, 2H), 1.68-1.62 (m, 2H), 1.29 (t, J = 5.4Hz, 1H).
Compound 31: 4- (benzyloxycarbonyloxy) butanoic acid<chemistry num="100"><img file="JP6830671B2_D0102.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing benzyl (4-hydroxybutyl) carbonate (290 mg, 1.29 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (188 mg, 61%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.38-7.33 (m, 5H), 5.16 (s, 2H), 4.21 (t, J = 6.2Hz, 2H), 2.47 (t, J = 7.2Hz, 2H), 2.03-1.97 (m, 2H).
Example 1-32 Intermediate compound 32': 4-Hydroxybutylphenyl carbonate<chemistry num="101"><img file="JP6830671B2_D0103.tif" /></chemistry>
A solution of DCM (5 mL) containing phenylcarbonochloridate (624 mg, 4 mmol) drop by drop, butane-1,4-diol (450 mg, 5 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (5 mL) containing N (505 mg, 5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 1 hour. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (333 mg, 40%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.39 (t, J = 7.8Hz, 2H), 7.26-7.23 (m, 1H), 7.18. (d, J = 8.0Hz, 2H), 4.30 (t, J = 6.6Hz, 2H), 3.72 (dd, J = 6.2, 11.2Hz, 2H), 1.89-1.82 (m, 2H), 1.75-1.68 ( m, 2H), 1.35 (t, J = 5.2Hz, 1H).
Compound 32: 4- (phenoxycarbonyloxy) butanoic acid<chemistry num="102"><img file="JP6830671B2_D0104.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutylphenyl carbonate (300 mg, 1.55 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-2: 1 to give the title compound as a white solid (210 mg, 65%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.39 (t, J = 8.0Hz, 2H), 7.25 (t, J = 7.2Hz, 1H). ), 7.18 (d, J = 8.0Hz, 2H), 4.32 (t, J = 6.2Hz, 2H), 2.55 (t, J = 7.4Hz, 2H), 2.13-2.06 (m, 2H).
Example 1-33 Intermediate Compound 33': 4-Chlorophenyl (4-Hydroxybutyl) Carbonate<chemistry num="103"><img file="JP6830671B2_D0105.tif" /></chemistry>
A solution of DCM (5 mL) containing 4-chlorophenyl carbonochloridate (500 mg, 2.62 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (707 mg, 7.86 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (529 mg, 5.24 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (420 mg, 66%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.35 (d, J = 9.2Hz, 2H), 7.13 (d, J = 9.2Hz, 2H). ), 4.30 (t, J = 6.4Hz, 2H), 3.72 (t, J = 6.2Hz, 2H), 1.89-1.82 (m, 2H), 1.74-1.67 (m, 2H).
Compound 33: 4-((4-chlorophenoxy) carbonyloxy) butanoic acid<chemistry num="104"><img file="JP6830671B2_D0106.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-chlorophenyl (4-hydroxybutyl) carbonate (400 mg, 1.64 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (220 mg, 52%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.35 (d, J = 9.2Hz, 2H), 7.13 (d, J = 8.8Hz, 2H). ), 4.32 (t, J = 6.2Hz, 2H), 2.55 (t, J = 7.4Hz, 2H), 2.13-2.06 (m, 2H).
Example 1-34 Intermediate Compound 34': 4-Hydroxybutyl p-tolyl carbonate<chemistry num="105"><img file="JP6830671B2_D0107.tif" /></chemistry>
A solution of DCM (5 mL) containing p-tolyl carbonochloridate (500 mg, 2.94 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (794 mg, 8.82 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (594 mg, 5.88 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (5 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (5 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (600 mg, 91%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.17 (d, J = 8.4Hz, 2H), 7.05 (d, J = 8.4Hz, 2H). ), 4.29 (t, J = 6.8Hz, 2H), 3.72 (t, J = 6.2Hz, 2H), 2.34 (s, 3H), 1.89-1.82 (m, 2H), 1.74-1.67 (m, 2H) ..
Compound 34: 4- (p-tolyloxycarbonyloxy) butanoic acid<chemistry num="106"><img file="JP6830671B2_D0108.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl p-tolyl carbonate (500 mg, 2.23 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (170 mg, 32%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.17 (d, J = 8.4Hz, 2H), 7.05 (d, J = 8.0Hz, 2H). ), 4.31 (t, J = 6.2Hz, 2H), 2.55 (t, J = 7.2Hz, 2H), 2.34 (s, 3H), 2.12-2.07 (m, 2H).
Scheme 2<chemistry num="107"><img file="JP6830671B2_D0109.tif" /></chemistry>
Example 1-35 Intermediate Compound 35': 4-Hydroxybutyl 4-butoxybenzoate<chemistry num="108"><img file="JP6830671B2_D0110.tif" /></chemistry>
4-Butoxybenzoic acid (882 mg, 4.55 mmol), DCC (1030 mg, 5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (15 mL) containing butane-1,4-diol (450 mg, 5 mmol). The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (500 mg, 41%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.97 (d, J = 8.4Hz, 2H), 6.90 (d, J = 9.2Hz, 2H). ), 4.33 (t, J = 6.2Hz, 2H), 4.01 (t, J = 6.6Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 1.89-1.71 (m, 6H), 1.61 (br .s., 1H), 1.54-1.45 (m, 2H), 0.98 (t, J = 7.2Hz, 3H).
Compound 35: 4- (4-butoxybenzoyloxy) butanoic acid<chemistry num="109"><img file="JP6830671B2_D0111.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-butoxybenzoate (450 mg, 1.69 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a crystalline solid (200 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.97 (d, J = 8.8Hz, 2H), 6.90 (d, J = 8.8Hz, 2H). ), 4.35 (t, J = 6.2Hz, 2H), 4.01 (t, J = 6.4Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.14-2.07 (m, 2H), 1.82-1.75 (m, 2H), 1.53-1.46 (m, 2H), 0.98 (t, J = 7.4Hz, 3H).
Example 1-36 Intermediate Compound 36': 4-Hydroxybutyl 4-isopropylbenzoate<chemistry num="110"><img file="JP6830671B2_D0112.tif" /></chemistry>
4-Isobenzoic acid (745 mg, 4.54 mmol), DCC (1030 mg, 5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (15 mL) containing butane-1,4-diol (450 mg, 5 mmol). The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (400 mg, 37%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.96 (d, J = 8.0Hz, 2H), 7.29 (d, J = 8.0Hz, 2H). ), 4.35 (t, J = 6.4Hz, 2H), 3.76-3.69 (m, 2H), 2.99-2.93 (m, 1H), 1.90-1.83 (m, 2H), 1.76-1.69 (m, 2H), 1.40 (br.s., 1H), 1.27 (s, 3H), 1.26 (s, 3H).
Compound 36: 4- (4-isopropylbenzoyloxy) butanoic acid<chemistry num="111"><img file="JP6830671B2_D0113.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-isopropylbenzoate (350 mg, 1.48 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (200 mg, 54%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.95 (d, J = 8.0Hz, 2H), 7.29 (d, J = 8.4Hz, 2H). ), 4.37 (t, J = 6.2Hz, 2H), 2.99-2.92 (m, 1H), 2.54 (t, J = 7.4Hz, 2H), 2.15-2.08 (m, 2H), 1.27 (s, 3H) , 1.25 (s, 3H).
Example 1-37 Intermediate Compound 37': 4-Hydroxybutyl 3- (methylsulfonyl) benzoate<chemistry num="112"><img file="JP6830671B2_D0114.tif" /></chemistry>
Stirred solution of DCM (15 mL) containing 3- (methylsulfonyl) benzoic acid (505 mg, 2.53 mmol), DCC (572 mg, 2.78 mmol) and DMAP (50 mg) butane-1,4-diol (250 mg, 2.78 mmol). Was added to. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 2: 1 to give the title compound as a colorless oil (150 mg, 22%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.60 (s, 1H), 8.33 (d, J = 8.0Hz, 1H), 8.15 (d). , J = 8.0Hz, 1H), 7.69 (t, J = 7.8Hz, 1H), 4.42 (t, J = 6.6Hz, 2H), 3.74 (q, J = 6.0Hz, 2H), 3.10 (s, 3H) ), 1.94-1.87 (m, 2H), 1.76-1.70 (m, 2H), 1.36 (t, J = 5.0Hz, 1H).
Compound 37: 4- (3- (methylsulfonyl) benzoyloxy) butanoic acid<chemistry num="113"><img file="JP6830671B2_D0115.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 3- (methylsulfonyl) benzoate (150 mg, 0.55 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. .. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 2: 1 to give the title compound as a crystalline solid (70 mg, 44%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.59 (s, 1H), 8.32 (d, J = 8.0Hz, 1H), 8.15 (d). , J = 8.0Hz, 1H), 7.69 (t, J = 7.8Hz, 1H), 4.44 (t, J = 6.2Hz, 2H), 3.11 (s, 3H), 2.55 (t, J = 7.0Hz, 2H) ), 2.20-2.14 (m, 2H).
Example 1-38 Intermediate Compound 38': 4-Hydroxybutyl Nicotinate<chemistry num="114"><img file="JP6830671B2_D0116.tif" /></chemistry>
Nicotinic acid (615 mg, 5 mmol), DCC (1133 mg, 5.5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (15 mL) containing butane-1,4-diol (900 mg, 10 mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 1: 1 to give the title compound as a colorless oil (450 mg, 46%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 9.22 (d, J = 1.6Hz, 1H), 8.78 (dd, J = 1.6, 4.8Hz). , 1H), 8.30 (td, J = 1.6, 8.0Hz, 1H), 7.40 (dd, J = 5.0, 7.8Hz, 1H), 4.41 (t, J = 6.6Hz, 2H), 3.74 (t, J = 6.2Hz, 2H), 1.93-1.86 (m, 2H), 1.77-1.70 (m, 2H), 1.46 (br.s., 1H).
Compound 38: 4- (cotinoyloxy) butanoic acid<chemistry num="115"><img file="JP6830671B2_D0117.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl nicotinate (450 mg, 2.31 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 1: 1 to give the title compound as a crystalline solid (50 mg, 10%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 9.21 (d, J = 1.6Hz, 1H), 8.72 (dd, J = 1.2, 4.8Hz). , 1H), 8.33 (td, J = 1.6, 7.6Hz, 1H), 7.40 (dd, J = 5.0, 7.8Hz, 1H), 4.45 (t, J = 6.2Hz, 2H), 2.56 (t, J = 7.0Hz, 2H), 2.21-2.15 (m, 2H).
Example 1-39 Intermediate Compound 39': 4-Hydroxybutyl isonicotinate<chemistry num="116"><img file="JP6830671B2_D0118.tif" /></chemistry>
Isonicotinic acid (1.23 g, 10 mmol), DCC (2.27 g, 11 mmol) and DMAP (122 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (2.7 g, 30 mmol). The reaction was stirred at 25 ° C. for 8 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (15 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-2: 1 to give the title compound as a pale yellow oil (1 g, 51%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.76 (d, J = 8.4Hz, 2H), 7.84 (d, J = 5.6Hz, 2H). ), 4.39 (t, J = 6.4Hz, 2H), 3.72 (t, J = 6.2Hz, 2H), 1.92-1.85 (m, 2H), 1.75-1.70 (m, 2H).
Compound 39: 4- (Isonicotinoyloxy) butanoic acid<chemistry num="117"><img file="JP6830671B2_D0119.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (30 mL) containing 4-hydroxybutyl isonicotinate (900 mg, 4.62 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (50 mL) and then filtered. Wash the filtered cake with EA (50 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 2: 1 to give the title compound as a white solid (70 mg, 7%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.55 (d, J = 6.0Hz, 2H), 7.86 (d, J = 6.4Hz, 2H). ), 4.49 (t, J = 5.8Hz, 2H), 2.53 (t, J = 6.6Hz, 2H), 2.23-2.17 (m, 2H).
Example 1-40 Intermediate Compound 40': 4-Hydroxybutyl 3-Methoxy-4-methylbenzoate<chemistry num="118"><img file="JP6830671B2_D0120.tif" /></chemistry>
Add 3-methoxy-4-methylbenzoic acid (500 mg, 3 mmol), DCC (683 mg, 3.32 mmol) and DMAP (50 mg) to a stirred solution of DCM (15 mL) containing butane-1,4-diol (542 mg, 6 mmol). Added. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (450 mg, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.55 (d, J = 7.6Hz, 1H), 7.48 (s, 1H), 7.18 (d). , J = 8.0Hz, 1H), 4.36 (t, J = 6.4Hz, 2H), 3.88 (s, 3H), 3.73 (t, J = 6.2Hz, 2H), 2.26 (s, 3H), 1.91-1.84 (m, 2H), 1.76-1.70 (m, 2H).
Compound 40: 4- (3-Methoxy-4-methylbenzoyloxy) butanoic acid<chemistry num="119"><img file="JP6830671B2_D0121.tif" /></chemistry>
Add Jones reagent in small portions to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 3-methoxy-4-methylbenzoate (450 mg, 1.89 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. bottom. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 4: 1 to give the title compound as a crystalline solid (280 mg, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.54 (d, J = 7.6Hz, 1H), 7.47 (s, 1H), 7.18 (d). , J = 7.6Hz, 1H), 4.37 (t, J = 6.2Hz, 2H), 3.88 (s, 3H), 2.54 (t, J = 7.4Hz, 2H), 2.26 (s, 3H), 2.15-2.09 (m, 2H).
Example 1-41 Intermediate compound 41': 4-Hydroxybutyl 2,6-dimethylbenzoate<chemistry num="120"><img file="JP6830671B2_D0122.tif" /></chemistry>
Add 2,6-dimethylbenzoic acid (500 mg, 3.33 mmol), DCC (755 mg, 3.67 mmol) and DMAP (50 mg) to a stirred solution of DCM (15 mL) containing butane-1,4-diol (600 mg, 6.67 mmol). Added. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with saturated brine (10 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (100 mg, 14%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.18 (t, J = 7.6Hz, 1H), 7.03 (d, J = 8.0Hz, 2H). ), 4.37 (t, J = 6.6Hz, 2H), 3.71 (t, J = 6.4Hz, 2H), 2.32 (s, 6H), 1.89-1.82 (m, 2H), 1.74-1.67 (m, 2H) ..
Compound 41: 4- (2,6-dimethylbenzoyloxy) butanoic acid<chemistry num="121"><img file="JP6830671B2_D0123.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2,6-dimethylbenzoate (100 mg, 0.45 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (50 mg, 47%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.19 (t, J = 7.4Hz, 1H), 7.03 (d, J = 7.6Hz, 2H). ), 4.39 (t, J = 6.4Hz, 2H), 2.52 (t, J = 7.4Hz, 2H), 2.32 (s, 6H), 2.13-2.07 (m, 2H). Example 1-42
Intermediate compound 42': 4-Hydroxybutyl 2-phenoxybenzoate<chemistry num="122"><img file="JP6830671B2_D0124.tif" /></chemistry>
2-Phenoxybenzoic acid (1070 mg, 5 mmol), DCC (1133 mg, 5.5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (900 mg, 10 mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1 to give the title compound as a colorless oil (700 mg, 49%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.93 (dd, J = 1.6, 8.0Hz, 1H), 7.50-7.45 (m, 1H). , 7.32 (t, J = 7.8Hz, 2H), 7.21 (t, J = 7.6Hz, 1H), 7.07 (t, J = 7.4Hz, 1H), 7.00 (d, J = 8.0Hz, 1H), 6.94 (d, J = 7.6Hz, 2H), 4.26 (t, J = 6.2Hz, 2H), 3.58 (s, 2H), 1.72-1.65 (m, 2H), 1.58-1.51 (m, 2H).
Compound 42: 4- (2-phenoxybenzoyloxy) butanoic acid<chemistry num="123"><img file="JP6830671B2_D0125.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2-phenoxybenzoate (700 mg, 2.45 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (400 mg, 54%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.92 (dd, J = 1.6, 7.6Hz, 1H), 7.50-7.46 (m, 1H). , 7.31 (d, J = 8.0Hz, 2H), 7.20 (t, J = 7.6Hz, 1H), 7.07 (t, J = 7.4Hz, 1H), 7.00 (d, J = 8.4Hz, 1H), 6.93 (d, J = 8.0Hz, 2H), 4.27 (t, J = 6.2Hz, 2H), 2.36 (t, J = 7.2Hz, 2H), 1.96-1.90 (m, 2H).
Example 1-43 Intermediate compound 43': 4-Hydroxybutyl 2,4-dimethylbenzoate<chemistry num="124"><img file="JP6830671B2_D0126.tif" /></chemistry>
2,4-Dimethylbenzoic acid (750 mg, 5 mmol), DCC (1133 mg, 5.5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (900 mg, 10 mmol). .. The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1 to give the title compound as a colorless oil (700 mg, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.82 (d, J = 7.6Hz, 1H), 7.05-7.03 (m, 2H), 4.32. (t, J = 6.6Hz, 2H), 3.73 (s, 2H), 2.57 (s, 3H), 2.35 (s, 3H), 1.89-1.82 (m, 2H), 1.76-1.69 (m, 2H).
Compound 43: 4- (2,4-dimethylbenzoyloxy) butanoic acid<chemistry num="125"><img file="JP6830671B2_D0127.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2,4-dimethylbenzoate (700 mg, 3.15 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (550 mg, 74%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.82 (d, J = 7.6Hz, 1H), 7.05-7.03 (m, 2H), 4.34. (t, J = 6.2Hz, 2H), 2.57 (s, 3H), 2.54 (t, J = 7.4Hz, 2H), 2.35 (s, 3H), 2.14-2.08 (m, 2H).
Example 1-44 Intermediate Compound 44': 4-Hydroxybutyl 2,3-dimethoxybenzoate<chemistry num="126"><img file="JP6830671B2_D0128.tif" /></chemistry>
2,3-Dimethoxybenzoic acid (910 mg, 5 mmol), DCC (1133 mg, 5.5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (900 mg, 10 mmol). .. The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1 to give the title compound as a colorless oil (600 mg, 47%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.32 (dd, J = 1.6, 7.2Hz, 1H), 7.11-7.04 (m, 2H). , 4.36 (t, J = 6.4Hz, 2H), 3.90 (s, 3H), 3.89 (s, 3H), 3.74-3.70 (m, 2H), 1.90-1.84 (m, 2H), 1.77-1.70 (m) , 2H), 1.40 (t, J = 4.8Hz, 1H).
Compound 44: 4- (2,3-dimethoxybenzoyloxy) butanoic acid<chemistry num="127"><img file="JP6830671B2_D0129.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2,3-dimethoxybenzoate (600 mg, 2.36 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (250 mg, 39%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.31 (dd, J = 2.0, 7.2Hz, 1H), 7.11-7.05 (m, 2H). , 4.38 (t, J = 6.2Hz, 2H), 3.91 (s, 3H), 3.89 (s, 3H), 2.57 (t, J = 7.4Hz, 2H), 2.15-2.08 (m, 2H).
Example 1-45 Intermediate compound 45': 4-Hydroxybutyl 4-isopropoxybenzoate<chemistry num="128"><img file="JP6830671B2_D0130.tif" /></chemistry>
4-Isopropoxybenzoic acid (900 mg, 5 mmol), DCC (1133 mg, 5.5 mmol) and DMAP (50 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (900 mg, 10 mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (800 mg, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.97 (d, J = 8.8Hz, 2H), 6.88 (d, J = 9.2Hz, 2H). ), 4.66-4.60 (m, 1H), 4.33 (t, J = 6.4Hz, 2H), 3.73 (q, J = 6.0Hz, 2H), 1.89-1.82 (m, 2H), 1.76-1.69 (m, 2H), 1.37 (s, 3H), 1.35 (s, 3H).
Compound 45: 4- (4-isopropoxybenzoyloxy) butanoic acid<chemistry num="129"><img file="JP6830671B2_D0131.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-isopropoxybenzoate (800 mg, 3.17 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (380 mg, 45%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.96 (d, J = 8.8Hz, 2H), 6.88 (d, J = 8.8Hz, 2H). ), 4.66-4.60 (m, 1H), 4.35 (t, J = 6.2Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.15-2.08 (m, 2H), 1.37 (s, 3H) , 1.35 (s, 3H).
Example 1-46 Intermediate compound 46': 4-Hydroxybutyl 2-ethylbenzoate<chemistry num="130"><img file="JP6830671B2_D0132.tif" /></chemistry>
Add 2,6-dimethylbenzoic acid (500 mg, 3.33 mmol), DCC (755 mg, 3.67 mmol) and DMAP (50 mg) to a stirred solution of DCM (30 mL) containing butane-1,4-diol (600 mg, 6.67 mmol). Added. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 8: 1 to give the title compound as a colorless oil (480 mg, 65%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.84 (d, J = 8.0Hz, 1H), 7.43 (t, J = 7.4Hz, 1H). ), 7.28-7.22 (m, 2H), 4.34 (t, J = 6.6Hz, 2H), 3.73 (t, J = 6.0Hz, 2H), 2.98 (q, J = 7.6Hz, 2H), 1.91-1.84 (m, 2H), 1.77-1.70 (m, 2H), 1.24 (t, J = 7.4Hz, 3H).
Compound 46: 4- (2-ethylbenzoyloxy) butanoic acid<chemistry num="131"><img file="JP6830671B2_D0133.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 2-ethylbenzoate (480 mg, 2.16 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Filtration Ke The over key was washed with EA (5 mL), the combined filtrate was washed with saturated brine (2 mL × 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a white solid (290 mg, 57%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.84 (d, J = 8.0Hz, 1H), 7.43 (d, J = 7.2Hz, 1H). ), 7.29-7.22 (m, 2H), 4.36 (t, J = 6.2Hz, 2H), 2.98 (q, J = 7.6Hz, 2H), 2.55 (t, J = 7.2Hz, 2H), 2.15-2.08 (m, 2H), 1.24 (t, J = 7.6Hz, 3H).
Example 1-47 Intermediate Compound 47': 4-Hydroxybutyl 4-benzoylbenzoate<chemistry num="132"><img file="JP6830671B2_D0134.tif" /></chemistry>
4-Benzoylbenzoic acid (500 mg, 2.21 mmol), DCC (501 mg, 2.44 mmol) and DMAP (5 mg) were added to a stirred solution of DCM (30 mL) containing butane-1,4-diol (398 mg, 4.42 mmol). .. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a white solid (400 mg, 61%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.15 (d, J = 8.4Hz, 2H), 7.85-7.80 (m, 4H), 7.62. (t, J = 7.6Hz, 1H), 7.50 (t, J = 7.6Hz, 2H), 4.41 (t, J = 6.4Hz, 2H), 3.75 (t, J = 6.4Hz, 2H), 1.94-1.87 (m, 2H), 1.79-1.72 (m, 2H).
Compound 47: 4- (4-benzoylbenzoyloxy) butanoic acid<chemistry num="133"><img file="JP6830671B2_D0135.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-benzoylbenzoate (400 mg, 1.34 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (280 mg, 67%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.14 (d, J = 8.4Hz, 2H), 7.85-7.80 (m, 4H), 7.62. (t, J = 7.6Hz, 1H), 7.50 (t, J = 7.6Hz, 2H), 4.44 (t, J = 6.2Hz, 2H), 2.57 (t, J = 7.2Hz, 2H), 2.19-2.12 (m, 2H).
Example 1-48 Intermediate Compound 48': 4-Hydroxybutyl Methyl Phthalate<chemistry num="134"><img file="JP6830671B2_D0136.tif" /></chemistry>
Stirred solution of DCM (30 mL) containing 2- (methoxycarbonyl) benzoic acid (900 mg, 5 mmol), DCC (1.13 g, 5.5 mmol) and DMAP (60 mg) butane-1,4-diol (1.35 g, 15 mmol) Was added to. The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (15 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-2: 1 to give the title compound as a colorless oil (1 g, 79%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 7.72-7.68 (m, 2H), 7.55-7.51 (m, 2H), 4.34 (t, J = 6.6Hz, 2H), 3.89 (s, 3H), 3.68 (t, J = 6.4Hz, 2H), 1.83-1.77 (m, 3H), 1.70-1.65 (m, 2H).
Compound 48: 4- (2- (methoxycarbonyl) benzoyloxy) butanoic acid<chemistry num="135"><img file="JP6830671B2_D0137.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (20 mL) containing 4-hydroxybutylmethylphthalate (900 mg, 3.57 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (3 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-1: 1 to give the title compound as a colorless oil (800 mg, 84%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 7.74-7.70 (m, 2H), 7.55-7.53 (m, 2H), 4.37 (t, J = 6.2Hz, 2H), 3.91 (s, 3H), 2.51 (t, J = 7.2Hz, 2H), 2.10-2.03 (m, 2H).
Example 1-49 Intermediate compound 49': 4-Hydroxybutylmethyl terephthalate<chemistry num="136"><img file="JP6830671B2_D0138.tif" /></chemistry>
Stirring DCM (20 mL) containing 4- (methoxycarbonyl) benzoic acid (1 g, 5.56 mmol), DCC (1258 mg, 6.11 mmol) and DMAP (10 mg) with butane-1,4-diol (1.5 g, 16.67 mmol). Added to the solution. The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a crystalline solid (750 mg, 54%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.10 (s, 4H), 4.39 (t, J = 6.6Hz, 2H), 3.95 (s). , 3H), 3.74 (t, J = 6.4Hz, 2H), 1.92-1.87 (m, 2H), 1.77-1.72 (m, 2H).
Compound 49: 4- (4- (methoxycarbonyl) benzoyloxy) butanoic acid<chemistry num="137"><img file="JP6830671B2_D0139.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutylmethyl terephthalate (700 mg, 2.78 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (2 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give the title compound as a crystalline solid (400 mg, 54%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.09 (s, 4H), 4.41 (t, J = 6.2Hz, 2H), 3.95 (s). , 3H), 2.55 (t, J = 7.2Hz, 2H), 2.18-2.11 (m, 2H).
Example 1-50 Intermediate Compound 50': 4-Hydroxybutyl (<sup>2</sup>H<sub>5</sub>) Benzoate<chemistry num="138"><img file="JP6830671B2_D0140.tif" /></chemistry>
(<sup>2</sup>H<sub>5</sub>) Benzoic acid (300 mg, 2.36 mmol), DCC (535 mg, 2.6 mmol) and DMAP (10 mg) were added to a stirred solution of DCM (20 mL) containing butane-1,4-diol (425 mg, 4.72 mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (320 mg, 68%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.37 (t, J = 6.4Hz, 2H), 3.74 (t, J = 6.4Hz, 2H). ), 1.91-1.84 (m, 2H), 1.78-1.71 (m, 2H).
Compound 50: 4-(((<sup>2</sup>H<sub>5</sub>) Phenylcarbonyloxy) Butanoic acid<chemistry num="139"><img file="JP6830671B2_D0141.tif" /></chemistry>
Little by little Jones reagent, 4-hydroxybutyl (<sup>2</sup>H<sub>5</sub>) Addition at 0 ° C. to a stirred mixture of acetone (5 mL) containing benzoate (300 mg, 1.51 mmol) and Celite® (diatomaceous earth, 2 g). The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (220 mg, 69%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.39 (t, J = 6.2Hz, 2H), 2.56 (t, J = 7.4Hz, 2H). ), 2.17-2.10 (m, 2H).
Example 1-51 Intermediate Compound 51': 4-Hydroxybutylthiazole-2-carboxylate<chemistry num="140"><img file="JP6830671B2_D0142.tif" /></chemistry>
Thiazole-2-carboxylic acid (500 mg, 3.88 mmol), DCC (879 mg, 4.27 mmol) and DMAP (50 mg) in a stirred solution of DCM (10 mL) containing butane-1,4-diol (1.05 g, 11.66 mmol). Added. The reaction was stirred at 25 ° C. for 8 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-2: 1 to give the title compound as a pale yellow oil (300 mg, 38%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.03 (d, J = 2.8Hz, 1H), 7.64 (d, J = 3.2Hz, 1H). ), 4.47 (t, J = 6.6Hz, 2H), 3.73 (t, J = 6.2Hz, 2H), 1.97-1.90 (m, 2H), 1.77-1.70 (m, 2H).
Compound 51: 4- (thiazole-2-carbonyloxy) butanoic acid<chemistry num="141"><img file="JP6830671B2_D0143.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutylthiazole-2-carboxylate (300 mg, 1.49 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (2 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-1: 1 to give the title compound as a crystalline solid (200 mg, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.06 (d, J = 2.8Hz, 1H), 7.67 (d, J = 3.2Hz, 1H). ), 4.49 (t, J = 6.2Hz, 2H), 2.58 (t, J = 7.2Hz, 2H), 2.19-2.12 (m, 2H).
Example 1-52 Intermediate Compound 52': 4-Hydroxybutylfuran-3-carboxylate<chemistry num="142"><img file="JP6830671B2_D0144.tif" /></chemistry>
Franc-3-carboxylic acid (224 mg, 2 mmol), DCC (453 mg, 2.2 mmol) and DMAP (24 mg) were added to a stirred solution of DCM (10 mL) containing butane-1,4-diol (540 mg, 6 mmol). The reaction was stirred at 25 ° C for 12 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a pale yellow oil (270 mg, 73%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.00 (s, 1H), 7.42 (s, 1H), 6.73 (s, 1H), 4.28. (t, J = 6.4Hz, 2H), 3.70 (t, J = 6.4Hz, 2H), 1.83-1.67 (m, 4H).
Compound 52: 4- (Fran-3-carbonyloxy) butanoic acid<chemistry num="143"><img file="JP6830671B2_D0145.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutylfuran-3-carboxylate (750 mg, 4.09 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (2 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a crystalline solid (600 mg, 74%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 8.01 (s, 1H), 7.42 (s, 1H), 6.73 (s, 1H), 4.31 (t, J = 6.2Hz, 2H), 2.51 (t, J = 7.4Hz, 2H), 2.12-2.05 (m, 2H).
Example 1-53 Intermediate Compound 53': 4-Hydroxybutylthiophene-3-carboxylate<chemistry num="144"><img file="JP6830671B2_D0146.tif" /></chemistry>
Stirring solution of DCM (50 mL) containing thiophene-3-carboxylic acid (1 g, 7.81 mmol), DCC (1.77 g, 8.59 mmol) and DMAP (10 mg) buttan-1,4-diol (2.1 g, 23.33 mmol). Was added to. The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 7: 1 to give a crude product, which was further purified by prep-TLC using Hex / EA = 1: 1 to give the pure title. The compound was obtained as a crystalline solid (600 mg, 38%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.10 (d, J = 2.0Hz, 1H), 7.53 (d, J = 5.2Hz, 1H). ), 7.31 (dd, J = 3.2, 5.2Hz, 1H), 4.32 (t, J = 6.4Hz, 2H), 3.73 (t, J = 6.4Hz, 2H), 1.90-1.80 (m, 2H), 1.76 -1.68 (m, 2H).
Compound 53: 4- (thiophene-3-carbonyloxy) butanoic acid<chemistry num="145"><img file="JP6830671B2_D0147.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing 4-hydroxybutylthiophene-3-carboxylate (400 mg, 2 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (2 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by prep-HPLC to give the title compound as a crystalline solid (100 mg, 23%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 8.10 (d, J = 2.0Hz, 1H), 7.52 (d, J = 5.2Hz, 1H). ), 7.31 (dd, J = 3.0, 5.0Hz, 1H), 4.34 (t, J = 6.2Hz, 2H), 2.53 (t, J = 7.2Hz, 2H), 2.13-2.07 (m, 2H).
Example 1-54 Intermediate Compound 54': (S) -1-tert-Butyl 2- (4-Hydroxybutyl) pyrrolidine-1,2-dicarboxylate<chemistry num="146"><img file="JP6830671B2_D0148.tif" /></chemistry>
(S) -1- (tert-butoxycarbonyl) pyrrolidine-2-carboxylic acid (2 g, 9.3 mmol), DCC (2108 mg, 10.23 mmol) and DMAP (50 mg) butane-1,4-diol (1674 mg, 18.6 mmol) ) Was added to a stirred solution of DCM (30 mL). The reaction was stirred at 25 ° C for 3 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (1.4 g, 52%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 4.32-4.12 (m, 3H), 3.71-3.62 (m, 2H), 3.58-3.35 ( m, 2H), 2.27-2.16 (m, 1H), 2.02-1.60 (m, 8H), 1.46 (s, 4H), 1.41 (s, 5H).
Compound 54: (S) -4- (1- (tert-butoxycarbonyl) pyrrolidine-2-carbonyloxy) butanoic acid<chemistry num="147"><img file="JP6830671B2_D0149.tif" /></chemistry>
Gradually add Jones Reagent (S) -1-tert-butyl 2- (4-hydroxybutyl) pyrrolidine-1,2-dicarboxylate (400 mg, 1.39 mmol) and Celite® (diatomaceous earth, 2 g). It was added at 0 ° C. to a stirred mixture of containing acetone (10 mL). The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / MeOH = 120: 1 to give the title compound as a colorless oil (200 mg, 48%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 4.40-4.32 (m, 1H), 4.26-4.07 (m, 2H), 3.58-3.35 ( m, 2H), 2.45 (t, J = 7.0Hz, 2H), 2.33-2.12 (m, 2H), 2.01-1.83 (m, 4H), 1.46 (s, 5H), 1.41 (s, 4H).
Example 1-55 Intermediate Compound 55': 4-Hydroxybutyl 2- (tert-butoxycarbonylamino) acetate<chemistry num="148"><img file="JP6830671B2_D0150.tif" /></chemistry>
DCM (30 mL) containing 2- (tert-butoxycarbonylamino) acetic acid (340 mg, 1.94 mmol), DCC (440 mg, 2.14 mmol) and DMAP (5 mg) buttan-1,4-diol (350 mg, 3.89 mmol). It was added to the stirred solution. The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a white solid (200 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.00 (br.s., 1H), 4.20 (t, J = 6.6Hz, 2H), 3.90 (d, J = 5.2Hz, 2H), 3.68 (q, J = 6.0Hz, 2H), 1.79-1.72 (m, 2H), 1.67-1.62 (m, 2H), 1.45 (s, 9H), 1.37 -1.34 (m, 1H).
Compound 55: 4- (2- (tert-butoxycarbonylamino) acetoxy) butanoic acid<chemistry num="149"><img file="JP6830671B2_D0151.tif" /></chemistry>
Add Jones reagent little by little to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl 2- (tert-butoxycarbonylamino) acetate (200 mg, 0.81 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. Was added in. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by flash column (silica gel, DCM / MeOH = 100: 1) to give the title compound as a colorless oil (150 mg, 71%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.03 (br.s., 1H), 4.23 (t, J = 6.2Hz, 2H), 3.90 (d, J = 5.2Hz, 2H), 2.45 (t, J = 7.2Hz, 2H), 2.05-1.98 (m, 2H), 1.45 (s, 9H).
Example 1-56 Compound 56: 4- (2-aminoacetoxy) butanoic acid<chemistry num="150"><img file="JP6830671B2_D0152.tif" /></chemistry>
A solution of HCl / EA (about 2M, 1.5mL) containing 4- (2- (tert-butoxycarbonylamino) acetoxy) butanoic acid (150mg, 0.57 mmol) was stirred at 25 ° C. for 24 hours. The reaction mixture is then filtered and the resulting precipitate is collected and Et.<sub>2</sub>Washed with O (0.5 mL) and dried under vacuum to give the title compound as a white solid in the form of an HCl salt (82 mg, 89%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.30 (t, J = 6.4Hz, 2H), 3.84 (s, 2H), 2.42 ( t, J = 7.2Hz, 2H), 2.03-1.94 (m, 2H).
Example 1-57 Intermediate Compound 57': (S) -4-Hydroxybutyl 2- (tert-Butyloxycarbonylamino) -3-Phenylpropanoate<chemistry num="151"><img file="JP6830671B2_D0153.tif" /></chemistry>
(S) -2- (tert-butoxycarbonylamino) -3-phenylpropanoic acid (1 g, 3.37 mmol), DCC (855 mg, 4.15 mmol) and DMAP (10 mg) butane-1,4-diol (679 mg, 7.54) It was added to a stirred solution of DCM (20 mL) containing (mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (700 mg, 55%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 7.32-7.27 (m, 2H), 7.26-7.21 (m, 1H), 7.14 (d, J = 6.8Hz, 2H), 4.97 (d, J = 8.0Hz, 1H), 4.58-4.53 (m, 1H), 4.19-4.08 (m, 2H), 3.64 (q, J = 5.6Hz, 2H), 3.07 (t, J = 4.8Hz, 2H), 1.72-1.65 (m, 2H), 1.56-1.51 (m, 2H), 1.42 (s, 9H).
Intermediate compound 57'': (S) -4- (2- (tert-butoxycarbonylamino) -3-phenylpropanoyloxy) butanoic acid<chemistry num="152"><img file="JP6830671B2_D0154.tif" /></chemistry>
Acetone containing (S) -4-hydroxybutyl 2- (tert-butoxycarbonylamino) -3-phenylpropanoate (600 mg, 1.78 mmol) and Celite® (diatomaceous earth, 2 g) in small portions with Jones reagent. It was added to the stirred mixture (10 mL) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (220 mg, 35%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound and the results are as follows: δ = 7.34-7.27 (m, 2H), 7.26-7.20 (m, 1H), 7.14 (d, J = 6.8Hz, 2H), 4.99 (d, J = 8.0Hz, 1H), 4.61-4.51 (m, 1H), 4.22-4.09 (m, 2H), 3.06 (d, J = 6.0Hz, 2H), 2.34 (t, J = 7.2Hz, 2H), 1.97-1.89 (m, 2H), 1.42 (s, 9H).
Compound 57: (S) -4- (2-amino-3-phenylpropanoyloxy) butanoic acid<chemistry num="153"><img file="JP6830671B2_D0155.tif" /></chemistry>
A solution of HCl / EA (about 2M, 2mL) containing (S) -4- (2- (tert-butoxycarbonylamino) -3-phenylpropanoyloxy) butanoic acid (180mg, 0.51 mmol) at 25 ° C. Stirred for 24 hours. The reaction mixture is then filtered and the resulting precipitate is collected and Et.<sub>2</sub>Washed with O (0.5 mL) and dried under vacuum to give the title compound as a white solid in the form of an HCl salt (100 mg, 78%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 7.41-7.31 (m, 3H), 7.27-7.25 (m, 2H), 4.30 (t). , J = 7.0Hz, 1H), 4.26-4.19 (m, 2H), 3.25-3.15 (m, 2H), 2.28 (t, J = 7.2Hz, 2H), 1.92-1.86 (m, 2H).
Example 1-58 Intermediate Compound 58': (S) -4-Hydroxybutyl 2- (tert-Butyloxycarbonylamino) -3-Methylbutanoate<chemistry num="154"><img file="JP6830671B2_D0156.tif" /></chemistry>
(S) -2- (tert-butoxycarbonylamino) -3-methylbutanoic acid (1 g, 4.61 mmol), DCC (1044 mg, 5.07 mmol) and DMAP (10 mg) butane-1,4-diol (829 mg, 9.21 mmol) ) Was added to a stirred solution of DCM (20 mL). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (10 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (15 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (700 mg, 53%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.07 (d, J = 8.8Hz, 1H), 4.16-4.11 (m, 3H), 3.62. (t, J = 6.2Hz, 2H), 2.32 (br.s., 1H), 2.12-2.04 (m, 1H), 1.75-1.68 (m, 2H), 1.62-1.56 (m, 2H), 1.40 ( s, 9H), 0.92 (d, J = 7.2Hz, 3H), 0.85 (d, J = 7.2Hz, 3H).
Intermediate compound 58'': (S) -4- (2- (tert-butoxycarbonylamino) -3-methylbutanoyloxy) butanoic acid<chemistry num="155"><img file="JP6830671B2_D0157.tif" /></chemistry>
Acetone containing (S) -4-hydroxybutyl 2- (tert-butoxycarbonylamino) -3-methylbutanoate (500 mg, 1.73 mmol) and Celite® (diatomaceous earth, 2 g) in small portions with Jones reagent. It was added to the stirred mixture (10 mL) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (170 mg, 32%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.03 (d, J = 9.2Hz, 1H), 4.30-4.24 (m, 1H), 4.22 -4.13 (m, 2H), 2.46 (t, J = 7.4Hz, 2H), 2.16-2.08 (m, 1H), 2.06-1.96 (m, 2H), 1.45 (s, 9H), 0.96 (d, J) = 6.8Hz, 3H), 0.89 (d, J = 6.4Hz, 3H).
Compound 58: (S) -4- (2-amino-3-methylbutanoyloxy) butanoic acid<chemistry num="156"><img file="JP6830671B2_D0158.tif" /></chemistry>
A solution of HCl / EA (about 2M, 1.5mL) containing (S) -4- (2- (tert-butoxycarbonylamino) -3-methylbutanoyloxy) butanoic acid (104mg, 0.34 mmol) at 25 ° C. Stirred for 24 hours. The reaction mixture is then filtered and the resulting precipitate is collected and Et.<sub>2</sub>Washed with O (0.5 mL) and dried under vacuum to give the title compound as a white solid in the form of an HCl salt (50 mg, 71%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.33-4.26 (m, 2H), 3.92 (d, J = 4.8Hz, 1H), 2.42 (t, J = 7.2Hz, 2H), 2.34-2.25 (m, 1H), 2.05-1.94 (m, 2H), 1.06 (d, J = 6.8Hz, 6H).
A suspension of ethanol (4 mL) containing the white solid (800 mg, 3.3 mmol) was stirred at 80 ° C. for approximately 30 minutes to form a clear solution. The solution was then gradually cooled to 25 ° C. and propylene oxide (580 mg, 10 mmol) was added drop by drop. The reaction was stirred at 25 ° C. for 16 hours, after which the resulting suspension was filtered. The white solid was collected, washed with cold ethanol and dried in vacuo to give the title compound in free salt form (510 mg, 75%).<sup>1</sup>1 H NMR at 400 MHz, d<sub>6</sub>When -DMSO was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.10-3.99 (m, 2H), 3.11 (d, J = 5.2Hz, 1H). , 2.29 (t, J = 7.4Hz, 2H), 1.90-1.74 (m, 3H), 0.87 (d, J = 6.8Hz, 3H), 0.82 (d, J = 6.4Hz, 3H).
Example 1-59 Intermediate Compound 59': 4-HydroxyButyl 2- (p-Trill) Acetate<chemistry num="157"><img file="JP6830671B2_D0159.tif" /></chemistry>
Stirring DCM (50 mL) containing 2- (p-tolyl) acetic acid (1 g, 6.67 mmol), DCC (1.5 g, 7.33 mmol) and DMAP (10 mg) butane-1,4-diol (3 g, 33.33 mmol). Added to the solution. The reaction was stirred at 25 ° C. for 16 hours. The reaction mixture is then filtered and the filtrate saturated NH<sub>4</sub>Washed with Cl aqueous solution (20 mL). The resulting organic phase was washed with brine (20 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (1.1 g, 74%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.18-7.12 (m, 4H), 4.12 (t, J = 6.6Hz, 2H), 3.64 (t, J = 6.4Hz, 2H), 3.58 (s, 2H), 2.33 (s, 3H), 1.75-1.68 (m, 2H), 1.62-1.55 (m, 2H).
Compound 59: 4- (2- (p-tolyl) acetoxy) butanoic acid<chemistry num="158"><img file="JP6830671B2_D0160.tif" /></chemistry>
Add one drop of Jones reagent to a stirred mixture of acetone (15 mL) containing 4-hydroxybutyl 2- (p-tolyl) acetate (800 mg, 3.60 mmol) and Celite® (diatomaceous earth, 1.6 g) at 0 ° C. Was added in. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (30 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 2: 1 to give the title compound as a crystalline solid (500 mg, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.17-7.12 (m, 4H), 4.14 (t, J = 6.2Hz, 2H), 3.57 (s, 2H), 2.41 (t, J = 7.2Hz, 2H), 2.33 (s, 3H), 1.99-1.93 (m, 2H).
Example 1-60 Intermediate Compound 60': (R) -4-Hydroxybutyl 2- (tert-Butyloxycarbonylamino) -3-Methylbutanoate<chemistry num="159"><img file="JP6830671B2_D0161.tif" /></chemistry>
DCC (3.1 g, 15.21 mmol) and DMAP (17 mg, 0.14 mmol) with (R) -2- (tert-butoxycarbonylamino) -3-methylbutanoic acid (3.0 g, 13.82 mmol) and butane-1,4-diol. It was added to a stirred suspension of DCM (40 mL) containing (3.7 g, 41.47 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then filtered and the filtered cake was washed with DCM (10 mL). Combine the filtrates and saturate NH<sub>4</sub>Wash with Cl aqueous solution (10 mL x 2) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using DCM / EA = 20: 1 to give the title compound as a colorless oil (2.5 g, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.02 (d, J = 8.4Hz, 1H), 4.20-4.16 (m, 2H), 3.68. (q, J = 6.0Hz, 2H), 2.16-2.08 (m, 1H), 1.79-1.70 (m, 2H), 1.69-1.64 (m, 2H), 1.44 (s, 9H), 0.96 (d, J) = 6.8Hz, 3H), 0.89 (d, J = 6.8Hz, 3H).
Intermediate compound 60'': (R) -4- (2- (tert-butoxycarbonylamino) -3-methylbutanoyloxy) butanoic acid<chemistry num="160"><img file="JP6830671B2_D0162.tif" /></chemistry>
Drop by drop of Jones reagent, (R) -4-hydroxybutyl 2- (tert-butoxycarbonylamino) -3-methylbutanoate (2.5 g, 8.65 mmol) and Celite® (diatomaceous earth, 5.0 g). Was added at 0 ° C. to a stirred mixture of acetone (25 mL) containing. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (25 mL) and then filtered. Wash the filtered cake with EA (25 mL), combine the filtrates, wash with brine (20 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 20: 1-3: 1 to give the title compound as a white solid (1.1 g, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 5.03 (d, J = 8.8Hz, 1H), 4.26-4.18 (m, 2H), 2.45. (t, J = 7.4Hz, 2H), 2.14-2.10 (m, 1H), 2.03-2.00 (m, 2H), 1.45 (s, 9H), 0.96 (d, J = 6.8Hz, 3H), 0.89 ( d, J = 6.8Hz, 3H).
Compound 60: (R) -4- (2-amino-3-methylbutanoyloxy) butanoic acid<chemistry num="161"><img file="JP6830671B2_D0163.tif" /></chemistry>
Add (R) -4- (2- (tert-butoxycarbonylamino) -3-methylbutanoyloxy) butanoic acid (400.0 mg, 1.32 mmol) to a stirred solution of HCl / EA (about 2 M, 2 mL) at 0 ° C. Was added in. The reaction was gradually warmed and stirred at 25 ° C for 16 hours. The resulting suspension was then filtered. The white precipitate was collected, washed with EA (2 mL) and dried in vacuo to give the title compound as a white solid in the form of an HCl salt (184.0 mg, 58%).<sup>1</sup>1 H NMR at 400MHz, D<sub>2</sub>When the title compound was characterized using O as a solvent, the results are as follows: δ = 4.32 (t, J = 5.6Hz, 2H), 4.03 (d, J = 4.4Hz, 1H), 2.51 (t, J = 7.2Hz, 2H), 2.39-2.35 (m, 1H), 2.03 (t, J = 6.6Hz, 2H), 1.04 (t, J = 7.2Hz, 6H).
Example 1-61 Intermediate Compound 61': (S) -4-Hydroxybutyl 2- (tert-Butyloxycarbonylamino) Propanoate<chemistry num="162"><img file="JP6830671B2_D0164.tif" /></chemistry>
(Boc)<sub>2</sub>Stir solution of 1,4-dioxane (56 mL) containing O (13.5 g, 61.80 mmol) with water (56 mL) containing -2-aminopropanoic acid (5.0 g, 56.18 mmol) and aqueous NaOH solution (56.2). It was added to mL, 1M) at 0 ° C. The reaction was gradually warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then cooled to 0 ° C. and then acidified with HCl (2M) to pH = 2-3. The mixture was diluted with EA (56 mL), the aqueous phase was separated and extracted with EA (56 mL × 3). Combine organic phases, wash with brine (56 mL), Na<sub>2</sub>SO<sub>4</sub>Dry on and evaporate to give crude (S) -2- (tert-butoxycarbonylamino) propanoic acid (9.0 g) as a white solid, which is used directly for the next step without further purification. bottom.
DCC (4.4 g, 21.16 mmol) and DMAP (25 mg), crude (S) -2- (tert-butoxycarbonylamino) propanoic acid (4.0 g) and butane-1,4-diol (5.7 g, 63.49 mmol). ) Was added to a stirred suspension of DCM (50 mL) at 0 ° C. The reaction was gradually warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then filtered and the filtered cake was washed with DCM (10 mL). Combine the filtrates and saturate NH<sub>4</sub>Wash with Cl aqueous solution (15 mL x 2) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using PE / EA = 4: 1-1: 1 to give the title compound as a colorless oil (3.0 g, 55%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.02 (br.s., 1H), 4.29 (t, J = 6.8Hz, 1H), 4.18 (t, J = 6.4Hz, 2H), 3.68 (q, J = 6.0Hz, 2H), 1.79-1.72 (m, 2H), 1.68-1.60 (m, 2H), 1.44 (s, 9H), 1.38 (d, J = 7.2Hz, 3H).
Intermediate compound 61'': (S) -4- (2- (tert-butoxycarbonylamino) propanoyloxy) butanoic acid<chemistry num="163"><img file="JP6830671B2_D0165.tif" /></chemistry>
Acetone (30 mL) containing (S) -4-hydroxybutyl 2- (tert-butoxycarbonylamino) propanoate (3.0 g, 11.49 mmol) and Celite® (diatomaceous earth, 6.0 g), one drop at a time with Jones reagent. Was added to the stirred mixture at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (100 mL) and then filtered. Wash the filtered cake with EA (20 mL), combine the filtrates, wash with brine (30 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 20: 1 to give the title compound as a colorless oil (1.8 g, 57%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.06 (br.s., 1H), 4.31-4.16 (m, 3H), 2.45 (t). , J = 7.2Hz, 2H), 2.02-1.97 (m, 2H), 1.44 (s, 9H), 1.38 (d, J = 7.2Hz, 3H).
Compound 61: (S) -4- (2-aminopropanoyloxy) butanoic acid<chemistry num="164"><img file="JP6830671B2_D0166.tif" /></chemistry>
(S) -4- (2- (tert-butoxycarbonylamino) propanoyloxy) butanoic acid (200.0 mg, 0.73 mmol) was added to a stirred solution of HCl / EA (1.0 mL, about 2 M) at 0 ° C. .. The reaction was gradually warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then evaporated and the residue was purified by prep-HPLC to give the title compound as a colorless oil in the form of an HCl salt (80.0 mg, 52%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.31-4.27 (m, 2H), 4.11 (q, J = 7.2Hz, 1H), 2.48-2.41 (m, 2H), 2.04-1.97 (m, 2H), 1.55 (dd, J = 1.6, 7.2Hz, 3H).
Example 1-62 Intermediate Compound 62': (S) -4-Hydroxybutyl 2-acetamide propanoate<chemistry num="165"><img file="JP6830671B2_D0167.tif" /></chemistry>
Ac<sub>2</sub>O (6.8 g, 66.67 mmol) was added to a stirred suspension of HOAc (25 mL) containing (S) -2-aminopropanoic acid (5.0 g, 56.18 mmol). The reaction was stirred at 25 ° C. for 16 hours. The reaction mixture was then evaporated to give crude (S) -2-acetamide propanoic acid as a white solid (8.0 g), which was used directly for the next step without further purification.
DCM (3.1 g, 15.28 mmol) and DMAP (20 mg) containing (S) -2-acetamide propanoic acid (2.0 g, 15.28 mmol) and butane-1,4-diol (4.1 g, 45.80 mmol) above. 50 mL) was added to the stirred suspension. The reaction was stirred at 25 ° C. for 16 hours. The reaction mixture was then filtered and the filtrate was concentrated. The residue was purified by prep-HPLC to give the title compound as a colorless oil (2.0 g, 67%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 6.12 (br.s., 1H), 4.59-4.52 (m, 1H), 4.24-4.13 (m, 2H), 3.67 (t, J = 6.4Hz, 2H), 2.01 (s, 3H), 1.77-1.72 (m, 2H), 1.66-1.59 (m, 2H), 1.40 (d, J = 7.6) Hz, 3H).
Compound 62: (S) -4- (2-acetamidopropanoyloxy) butanoic acid<chemistry num="166"><img file="JP6830671B2_D0168.tif" /></chemistry>
0 drops of Jones reagent in a stirred mixture of acetone (10 mL) containing (S) -4-hydroxybutyl 2-acetamide propanoate (660 mg, 3.25 mmol) and Celite® (diatomaceous earth, 1.2 g). Added at ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by prep-HPLC to give the title compound as a colorless oil (300 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 6.25 (d, J = 6.4Hz, 1H), 4.61-4.54 (m, 1H), 4.28. -4.15 (m, 2H), 2.44 (t, J = 7.0Hz, 2H), 2.03 (s, 3H), 2.07-1.97 (m, 2H), 1.40 (d, J = 7.2Hz, 3H).
Scheme 3:<chemistry num="167"><img file="JP6830671B2_D0169.tif" /></chemistry>Example 1-63
Intermediate compound 63': Benzyl 4- (2- (tert-butoxycarbonyl) aminoacetoxy) butanoate<chemistry num="168"><img file="JP6830671B2_D0170.tif" /></chemistry>
25 a mixture of DCM (20 mL) containing N-Boc glycine (2.0 g, 11.4 mmol), benzyl4-hydroxybutanoate (2.7 g, 13.7 mmol), DCC (3.1 g, 14.8 mmol) and DMAP (5 mg). Stir at ° C for 16 hours. Filter the reaction mixture and saturate the filtrate NH<sub>4</sub>Washed with Cl aqueous solution (2 x 20 mL). The organic layer, Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1-1: 1 to give the title compound as a colorless oil (2.0 g, 50%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.45-7.27 (m, 5H), 5.13 (s, 2H), 4.99 (br.s. , 1H), 4.20 (t, J = 6.2Hz, 2H), 3.88 (d, J = 4.4Hz, 2H), 2.46 (t, J = 7.4Hz, 2H), 2.04-1.97 (m, 2H), 1.45 (s, 9H).
Intermediate Compound 63'': Benzyl 4- (2-aminoacetoxy) butanoate<chemistry num="169"><img file="JP6830671B2_D0171.tif" /></chemistry>
TFA (3.0 mL) was added to a solution of DCM (15 mL) containing benzyl 4- (2- (tert-butoxycarbonyl) aminoacetoxy) butanoate (1.60 g, 4.56 mmol) at 0 ° C. and the reaction was added to the same temperature. Stirred for 2 hours. The solvent was then evaporated to give the title compound (1.2 g), which was used directly for the next step without further purification.
Intermediate Compound 63''': Benzyl 4- (2-propionamide acetoxy) butanoate<chemistry num="170"><img file="JP6830671B2_D0172.tif" /></chemistry>
One drop of propionyl chloride (162 mg, 1.75 mmol), benzyl 4- (2-aminoacetoxy) butanoate (400 mg, 1.59 mmol) and Et.<sub>3</sub>It was added to a solution of DCM (10 mL) containing N (0.66 mL, 4.78 mmol) at 0 ° C. The reaction was warmed and stirred at 25 ° C for 16 hours. The reaction was then stopped with water (10 mL) for 5 minutes with stirring. Extract the aqueous phase with DCM (10 mL x 3), combine the organic phases, wash with brine (20 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 1: 1 to give the title compound as a colorless oil (440 mg, 90%).
Compound 63: 4- (2-propionamide acetoxy) butanoic acid<chemistry num="171"><img file="JP6830671B2_D0173.tif" /></chemistry>
Pd / C (50 mg) was added to a solution of MeOH (10 mL) containing benzyl 4- (2-propionamide acetoxy) butanoate (400 mg, 1.3 mmol) and the mixture was added to H at 25 ° C for 16 hours.<sub>2</sub>Stirred in the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 1: 50 to give the title compound as a white solid (170 mg, 60%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.18 (t, J = 6.2Hz, 2H), 3.92 (s, 2H), 2.39 ( t, J = 7.4Hz, 2H), 2.27 (q, J = 7.6Hz, 2H), 1.98-1.91 (m, 2H), 1.14 (t, J = 7.6Hz, 3H).
Example 1-64 Intermediate Compound 64': Benzyl 4- (2-isobutyramide acetoxy) butanoate<chemistry num="172"><img file="JP6830671B2_D0174.tif" /></chemistry>
Isobutyryl chloride (0.8 g, 7.5 mmol) drop by drop, benzyl 4- (2-aminoacetoxy) butanoate (1.57 g, 6.26 mmol) and Et.<sub>3</sub>It was added to a solution of DCM (20 mL) containing N (1.58 mL, 15.7 mmol) at 0 ° C. The reaction was stirred at 25 ° C. for 16 hours and then washed with brine (2 x 10 mL). The organic layer, Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by prep-HPLC to give the title compound as a colorless oil (0.8 g, 40%).<sup>1</sup>1 H NMR at 600 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.45-7.27 (m, 5H), 5.93 (br.s., 1H), 5.12 (s). , 2H), 4.20 (t, J = 6.3Hz, 2H), 4.00 (d, J = 4.8Hz, 2H), 2.50-2.37 (m, 3H), 2.04-1.99 (m, 2H), 1.18 (d, J = 7.2Hz, 6H).
Compound 64: 4- (2-isobutyramide acetoxy) butanoic acid<chemistry num="173"><img file="JP6830671B2_D0175.tif" /></chemistry>
Pd / C (75 mg) was added to a solution of EA (10 mL) containing benzyl 4- (2-isobutyramide acetoxy) butanoate (0.75 g, 2.3 mmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under the atmosphere. The reaction was filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 5: 1-3: 1 to give the title compound as a white solid (270 mg, 50%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 6.04 (br.s., 1H), 4.24 (t, J = 6.2Hz, 2H), 4.03 (d, J = 5.2Hz, 2H), 2.57-2.36 (m, 3H), 2.06-1.99 (m, 2H), 1.18 (d, J = 7.2Hz, 6H).
Example 1-65 Intermediate Compound 65': Benzyl 4- (2- (tert-butoxycarbonyl) Methylaminoacetoxy) Butanoate<chemistry num="174"><img file="JP6830671B2_D0176.tif" /></chemistry>
2-((tert-Butyloxycarbonyl) methylamino) acetic acid (5.0 g, 26.45 mmol), benzyl 4-hydroxybutanoate (4.6 g, 23.71 mmol), DCC (6.0 g, 29.07 mmol) and DMAP (cat.) A mixture of DCM (100 mL) containing was stirred at 25 ° C. for 16 hours. The reaction mixture was then filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1 to give the title compound as a colorless oil (8.0 g, 83%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.35-7.26 (m, 5H), 5.12 (s, 2H), 4.17 (q, J = 5.6Hz, 2H), 3.94 (s, 1H), 3.86 (s, 1H), 2.90 (d, J = 6.8Hz, 3H), 2.45 (t, J = 7.4Hz, 2H), 2.02-1.97 (m, 2H), 1.43 (d, J = 19.6Hz, 9H).
Intermediate Compound 65'': Benzyl 4- (2- (N-methylacetamide) acetoxy) butanoate<chemistry num="175"><img file="JP6830671B2_D0177.tif" /></chemistry>
Add TFA (8.0 mL) to a solution of DCM (80 mL) containing benzyl 4- (2- (tert-butoxycarbonyl) methylaminoacetoxy) butanoate (8.0 g, 21.89 mmol) at 0 ° C and the same reaction. Stirred at temperature for 2 hours. The solvent was then evaporated and the residue (5.8 g) was used directly for the next step.
Dissolve the above residue (5.8 g) in DCM (60 mL) and add Et.<sub>3</sub>N (9.2 mL, 65.58 mmol) was added, followed by acetyl chloride (3.4 g, 43.72 mmol) at 0 ° C. The reaction was warmed and stirred at 25 ° C for 16 hours. The solvent was then evaporated and the residue was purified by prep-HPLC to give the title compound as a colorless oil (4.0 g, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.35-7.31 (m, 5H), 5.10 (s, 2H), 4.14 (t, J = 6.2Hz, 2H), 4.06 (s, 2H), 3.03 (s, 3H), 2.43 (t, J = 7.4Hz, 2H), 2.10 (s, 2H), 2.11-1.96 (m, 3H).
Compound 65: 4- (2- (N-methylacetamide) acetoxy) butanoic acid<chemistry num="176"><img file="JP6830671B2_D0178.tif" /></chemistry>
Pd / C (400 mg) was added to a solution of MeOH (40 mL) containing benzyl 4- (2- (N-methylacetamide) acetamide) butanoate (4.0 g, 13.01 mmol) and the reaction was added at 25 ° C for 16 hours. Between H<sub>2</sub>Stirred in the atmosphere. The reaction mixture was then filtered. The filtrate was concentrated and the residue was purified by silica gel flash column using PE / EA = 10: 10 to give the title compound as a colorless oil (1.2 g, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.92 (br.s., 1H), 4.20 (t, J = 6.2Hz, 2H), 4.11 (s, 2H), 3.09 (s, 3H), 2.42 (t, J = 7.2Hz, 2H), 2.16 (s, 3H), 2.02-1.95 (m, 2H).
Scheme 4:<chemistry num="177"><img file="JP6830671B2_D0179.tif" /></chemistry>
Example 1-66 Intermediate Compound 66': Benzyl 4- (2-acetamidoacetoxy) butanoate<chemistry num="178"><img file="JP6830671B2_D0180.tif" /></chemistry>
2-Acetamide acetic acid (362 mg, 3.09 mmol), DCC (584 mg, 2.83 mmol) and DMAP (5 mg) were added to a stirred solution of DCM (20 mL) containing benzyl 4-hydroxybutanoate (500 mg, 2.58 mmol). The reaction was stirred at 25 ° C. for 16 hours. The reaction mixture was then filtered. Saturate the filtrate NH<sub>4</sub>Wash with Cl aqueous solution (15 mL), separate organic phase, wash with brine (10 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by prep-HPLC to give the title compound as a crystalline solid (320 mg, 42%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 7.36-7.31 (m, 5H), 5.13 (s, 2H), 4.17 (t, J) = 6.2Hz, 2H), 3.88 (s, 2H), 2.48 (t, J = 7.4H, 2H), 2.01-1.94 (m, 5H).
Compound 66: 4- (2-acetamidoacetoxy) butanoic acid<chemistry num="179"><img file="JP6830671B2_D0181.tif" /></chemistry>
Pd / C (30 mg) was added to a solution of methanol (10 mL) containing benzyl 4- (2-acetamidoacetoxy) butanoate (280 mg, 0.96 mmol) and the reaction was H at 25 ° C.<sub>2</sub>The mixture was stirred for 16 hours under the atmosphere. Upon completion, the reaction mixture was filtered through Celite® (diatomaceous earth) to concentrate the filtrate. The residue was purified by prep-HPLC to give the title compound as a crystalline solid (110 mg, 57%).<sup>1</sup>1 H NMR at 400MHz, CD<sub>3</sub>When OD was used as the solvent and the title compound was characterized, the results are as follows: δ = 4.18 (t, J = 6.4Hz, 2H), 3.92 (s, 2H), 2.39 ( t, J = 7.4Hz, 2H), 2.00 (s, 3H), 1.98-1.91 (m, 2H).
Example 1-67 Scheme 5:<chemistry num="180"><img file="JP6830671B2_D0182.tif" /></chemistry>
Intermediate Compound 67': (S) -4-Hydroxybutyl 2-acetamide-3-methylbutanoate<chemistry num="181"><img file="JP6830671B2_D0183.tif" /></chemistry>
HATU (5258 mg, 13.84 mmol) and DIPEA (3245 mg, 25.16 mmol) containing (S) -2-acetamido-3-methylbutanoic acid (2 g, 12.58 mmol) and butane-1,4-diol (3396 mg, 37.74 mmol) It was added to a stirred solution of DCM (50 mL). The reaction was stirred at 25 ° C. for 16 hours. The mixture was then concentrated and the residue was purified by prep-HPLC to give the title compound as a colorless oil (600 mg, 21%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.96 (d, J = 8.0Hz, 1H), 4.54 (dd, J = 5.0, 8.6Hz). , 1H), 4.26-4.11 (m, 2H), 3.69 (t, J = 6.4Hz ,, 2H), 2.18-2.11 (m, 1H), 2.05 (s, 3H), 1.79-1.72 (m, 2H) , 1.69-1.65 (m, 2H), 0.95 (d, J = 6.8Hz, 3H), 0.91 (d, J = 6.8Hz, 3H).
Compound 67: (S) -4- (2-acetamido-3-methylbutanoyloxy) butanoic acid<chemistry num="182"><img file="JP6830671B2_D0184.tif" /></chemistry>
Stirring acetone (10 mL) containing (S) -4-hydroxybutyl 2-acetamido-3-methylbutanoate (500 mg, 2.16 mmol) and Celite® (diatomaceous earth, 1 g), drop by drop with Jones reagent. It was added to the mixture at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction mixture was stopped with isopropanol droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by prep-HPLC to give the title compound as a crystalline solid (190 mg, 36%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 6.18 (d, J = 7.2Hz, 1H), 4.55 (dd, J = 4.8, 8.4Hz). , 1H), 4.30-4.24 (m, 1H), 4.20-4.14 (m, 1H), 2.47 (t, J = 7.0Hz, 2H), 2.20-2.12 (m, 1H), 2.09 (s, 3H), 2.06-1.98 (m, 2H), 0.95 (d, J = 6.8Hz, 3H), 0.91 (d, J = 6.8Hz, 3H).
Scheme 6:<chemistry num="183"><img file="JP6830671B2_D0185.tif" /></chemistry>
Example 1-68 Intermediate Compound 68': 2- (ethoxycarbonylamino) Acetic Acid<chemistry num="184"><img file="JP6830671B2_D0186.tif" /></chemistry>
One drop of ethyl carbonochloridate (3.8 g, 34.6 mmol), glycine (2.0 g, 26.6 mmol) and K<sub>2</sub>CO<sub>3</sub>It was added at 0 ° C. to an aqueous solution (40 mL) containing (9.6 g, 96.3 mmol). The reaction was warmed to 25 ° C and stirred for 16 hours. The reaction mixture was then extracted with EA (2 x 20 mL). The aqueous phase was separated, acidified to pH = 2 with cold concentrated HCl and extracted with EA (2 x 40 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated to give the title compound as a white solid (3.5 g, 89%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.16 (br.s., 1H), 4.24-4.08 (m, 2H), 4.07-3.93. (m, 2H), 1.41-1.14 (m, 3H).
Intermediate Compound 68'': 4-Hydroxybutyl 2- (ethoxycarbonylamino) acetate<chemistry num="185"><img file="JP6830671B2_D0187.tif" /></chemistry>
DCM (30 mL) containing 2- (ethoxycarbonylamino) acetic acid (1.0 g, 6.8 mmol), butane-1,4-diol (3.1 g, 34.0 mmol), DCC (1.7 g, 8.2 mmol) and DMAP (10 mg). The mixture was stirred at 25 ° C. for 16 hours. The reaction mixture was then filtered and the filtrate washed with water (2 x 20 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 5: 1-2: 1 to give the title compound as a colorless oil (630 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.16 (br.s., 1H), 4.20 (t, J = 6.6Hz, 2H), 4.14 (t, J = 7.2Hz, 2H), 3.95 (d, J = 5.2Hz, 2H), 3.68 (t, J = 6.2Hz, 2H), 1.83-1.69 (m, 2H), 1.69-1.52 (m) , 2H), 1.25 (t, J = 7.2Hz, 3H).
Compound 68: 4- (2- (ethoxycarbonyl) aminoacetoxy) butanoic acid<chemistry num="186"><img file="JP6830671B2_D0188.tif" /></chemistry>
Add Jones reagent in small portions to a mixture of 4-hydroxybutyl 2- (ethoxycarbonylamino) acetate (500 mg, 2.3 mmol) and acetone (10 mL) containing Celite® (diatomaceous earth, 1.5 g) at 0 ° C. bottom. The reaction proceeded at 0 ° C for 30 minutes or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction mixture was stopped with isopropanol droplets, diluted with EA (20 mL) and filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 20: 1-5: 1 to give the title compound as a white solid (190 mg, 36%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.20 (br.s., 1H), 4.23 (t, J = 6.4Hz, 2H), 4.14 (q, J = 7.2Hz, 2H), 3.96 (d, J = 5.6Hz, 2H), 2.46 (t, J = 7.2Hz, 2H), 2.04-1.97 (m, 2H), 1.25 (t, J = 7.0Hz, 3H).
Example 1-69 Intermediate Compound 69': 2- (Isopropoxycarbonylamino) Acetic Acid<chemistry num="187"><img file="JP6830671B2_D0189.tif" /></chemistry>
Glycine (1.0 g, 13.3 mmol) and K, drop by drop of isopropylcarbonochloridate (2.1 g, 17.3 mmol)<sub>2</sub>CO<sub>3</sub>It was added to an aqueous solution (30 mL) containing (4.8 g, 34.6 mmol) at 0 ° C. The reaction was warmed to 25 ° C and stirred for 16 hours. The reaction mixture was then extracted with EA (2 x 20 mL). The aqueous phase was separated, acidified to pH = 2 with cold concentrated HCl and extracted with EA (2 x 30 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated to give the title compound as a white solid (2.0 g, 93%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.21 (br.s., 1H), 4.98-4.89 (m, 1H), 4.02-3.96. (m, 2H), 1.26-1.23 (m, 6H).
Intermediate Compound 69'': 4-Hydroxybutyl 2- (isopropoxycarbonylamino) acetate<chemistry num="188"><img file="JP6830671B2_D0190.tif" /></chemistry>
A mixture of DCM (10 mL) containing 2- (isopropoxycarbonylamino) acetic acid (500 mg, 3.1 mmol), butane-1,4-diol (839 mg, 9.3 mmol), DCC (768 mg, 3.7 mmol) and DMAP (10 mg). Was stirred at 25 ° C for 16 hours. The reaction mixture was then filtered and the filtrate washed with water (2 x 20 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1-1: 1 to give the title compound as a colorless oil (500 mg, 69%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.10 (br.s., 1H), 4.95-4.88 (m, 1H), 4.20 (t). , J = 6.4Hz, 2H), 3.95 (d, J = 5.6Hz, 2H), 3.68 (t, J = 6.2Hz, 2H), 1.79-1.72 (m, 2H), 1.67-1.57 (m, 2H) , 1.24 (d, J = 6.4Hz, 6H).
Compound 69: 4- (2- (isopropoxycarbonyl) aminoacetoxy) butanoic acid<chemistry num="189"><img file="JP6830671B2_D0191.tif" /></chemistry>
Gradually add Jones reagent to a mixture of 4-hydroxybutyl 2- (isopropoxycarbonylamino) acetate (500 mg, 2.1 mmol) and acetone (10 mL) containing Celite® (diatomaceous earth, 1.5 g) at 0 ° C. Added. The reaction proceeded at 0 ° C for 30 minutes or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction mixture was stopped with isopropanol droplets, diluted with EA (20 mL) and filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by prep-HPLC to give the title compound as a white solid (220 mg, 42%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.13 (br.s., 1H), 4.95-4.89 (m, 1H), 4.22 (t). , J = 6.2Hz, 2H), 3.95 (d, J = 5.6Hz, 2H), 2.46 (t, J = 7.2Hz, 2H), 2.04-1.97 (m, 2H), 1.24 (d, J = 6.4Hz) , 6H).
Scheme 7:<chemistry num="190"><img file="JP6830671B2_D0192.tif" /></chemistry>
Example 1-70 Intermediate compound 70': 2-((cyclohexyloxy) carbonylamino) acetic acid<chemistry num="191"><img file="JP6830671B2_D0193.tif" /></chemistry>
Pyridine (1.2 g, 15.0 mmol) was added dropwise to a solution of toluene (20 mL) containing triphosgene (3.6 g, 12.0 mmol) at 0 ° C. and the resulting yellow slurry was stirred for 0.5 hours. Then, a solution of toluene (10 mL) containing cyclohexanol (1.0 g, 10.0 mmol) was added drop by drop at 0 ° C. The reaction was warmed and stirred at 25 ° C. for an additional hour, after which the reaction was stopped by the addition of water (30 mL). The obtained aqueous phase was extracted with EA (2 × 20 mL). Combine the organic layers and EDTA<sub>4</sub>It was dried on top, filtered and concentrated. The residue was used directly for the next step without purification.
Glycine (675 mg, 9.0 mmol) and K, drop by drop of the above crude cyclohexylcarbonochloridate.<sub>2</sub>CO<sub>3</sub>It was added to an aqueous solution (20 mL) containing (3.5 g, 25.0 mmol) at 0 ° C. The reaction was warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then extracted with EA (2 x 30 mL). The aqueous phase was separated, acidified to pH = 2 with cold concentrated HCl and extracted with EA (2 x 30 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated to give the title compound as a white solid (0.9 g, 45%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.14 (br.s., 1H), 4.79-4.59 (m, 1H), 4.07-3.92. (m, 2H), 1.95-1.80 (m, 2H), 1.73-1.70 (m, 2H), 1.61-1.14 (m, 6H).
Intermediate compound 70'': Benzyl 4- (2-((cyclohexyloxy) carbonylamino) acetoxy) butanoate<chemistry num="192"><img file="JP6830671B2_D0194.tif" /></chemistry>
Includes 2-((cyclohexyloxy) carbonylamino) acetic acid (850 mg, 4.2 mmol), benzyl4-hydroxybutanoate (985 mg, 6.3 mmol), HATU (1.9 g, 5.1 mmol) and DIPEA (819 mg, 6.3 mmol) The solution of DCM (20 mL) was stirred at 25 ° C for 16 hours. The reaction mixture was then diluted with DCM (10 mL) and washed with water (2 x 20 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel column using PE / EA = 100: 1-5: 1 to give the title compound as a colorless oil (0.9 g, 56%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.42-7.29 (m, 5H), 5.12 (s, 2H), 5.08 (br.s. , 1H), 4.77-4.55 (m, 1H), 4.20 (t, J = 6.4Hz, 2H), 3.93 (d, J = 5.6Hz, 2H), 2.45 (t, J = 7.6Hz, 2H), 2.04 -1.97 (m, 2H), 1.87-1.85 (m, 2H), 1.78-1.64 (m, 2H), 1.58-1.46 (m, 1H), 1.46-1.14 (m, 5H).
Compound 70: 4- (2- (cyclohexyloxy) carbonylaminoacetoxy) butanoic acid<chemistry num="193"><img file="JP6830671B2_D0195.tif" /></chemistry>
Pd / C (90 mg) was added to a solution of EA (10 mL) containing benzyl 4- (2-((cyclohexyloxy) carbonylamino) acetoxy) butanoate (900 mg, 2.4 mmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under an atmosphere. The reaction mixture was then filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1-1: 1 to give the title compound as a white solid (220 mg, 32%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.13 (br.s., 1H), 4.67-4.62 (m, 1H), 4.23 (t). , J = 6.2Hz, 2H), 3.95 (d, J = 6.0Hz, 2H), 2.46 (t, J = 7.2Hz, 2H), 2.05-1.98 (m, 2H), 1.88-1.86 (m, 2H) , 1.72-1.70 (m, 2H), 1.59-1.47 (m, 1H), 1.46-1.12 (m, 5H).
Scheme 8:<chemistry num="194"><img file="JP6830671B2_D0196.tif" /></chemistry>
Example 1-71 Intermediate Compound 71': (S) -2- (ethoxycarbonylamino) -3-methylbutanoic acid<chemistry num="195"><img file="JP6830671B2_D0197.tif" /></chemistry>
One drop of ethyl carbonochloridate (1.9 g, 17.3 mmol), L-valine (1.0 g, 8.5 mmol) and K<sub>2</sub>CO<sub>3</sub>It was added to an aqueous solution (30 mL) containing (4.8 g, 34.6 mmol) at 0 ° C. The reaction was warmed and stirred at 25 ° C for 16 hours. The reaction mixture was then extracted with EA (2 x 20 mL). The aqueous phase was separated, acidified to pH = 2 with cold concentrated HCl and extracted with EA (2 x 30 mL). Combine the organic layers and Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated to give the title compound as a colorless oil (1.5 g, 60%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.12 (d, J = 9.2Hz, 1H), 4.33 (dd, J = 4.6, 9.0Hz). , 1H), 4.14 (q, J = 7.2Hz, 2H), 2.32-2.11 (m, 1H), 1.26 (t, J = 7.2Hz, 3H), 1.01 (d, J = 6.4Hz, 3H), 0.94 (d, J = 7.2Hz, 3H).
Intermediate Compound 71'': (S) -4- (benzyloxy) -4-oxobutyl 2- (ethoxycarbonylamino) -3-methylbutanoate<chemistry num="196"><img file="JP6830671B2_D0198.tif" /></chemistry>
(S) -2- (ethoxycarbonylamino) -3-methylbutanoic acid (536 mg, 2.8 mmol), benzyl4-hydroxybutanoate (500 mg, 2.6 mmol), HATU (1.2 g, 3.1 mmol) and DIPEA (499 mg, 499 mg, A solution of DCM (20 mL) containing 3.9 mmol) was stirred at 25 ° C. for 16 hours. The reaction mixture was then diluted with DCM (10 mL) and washed with water (2 x 20 mL). The organic layer, Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 20: 1-5: 1 to give the title compound as a colorless oil (370 mg, 39%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.45-7.46 (m, 5H), 5.13 (s, 2H), 4.26 (dd, J = 4.8, 8.8Hz, 1H), 4.17 (t, J = 6.4Hz, 2H), 4.11 (q, J = 7.2Hz, 2H), 2.46 (t, J = 7.6Hz, 2H), 2.21-2.07 (m, 1H), 2.04-1.97 (m, 2H), 1.24 (t, J = 7.0Hz, 3H), 0.96 (d, J = 6.8Hz, 3H), 0.87 (d, J = 6.8Hz, 3H).
Compound 71: (S) -4-(2-((ethoxycarbonyl) amino) -3-methylbutanoyloxy) butanoic acid<chemistry num="197"><img file="JP6830671B2_D0199.tif" /></chemistry>
Pd / C (40 mg) in a solution of EA (10 mL) containing (S) -4- (benzyloxy) -4-oxobutyl 2- (ethoxycarbonylamino) -3-methylbutanoate (350 mg, 1.0 mmol) Added. Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under an atmosphere. The reaction was filtered and the filtrate was concentrated to give the title compound as a colorless oil (240 mg, 91%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 5.16 (d, J = 8.8Hz, 1H), 4.28-4.10 (m, 5H), 2.46. (t, J = 7.2Hz, 2H), 2.25-2.08 (m, 1H), 2.05-1.96 (m, 2H), 1.25 (t, J = 7.0Hz, 3H), 0.93 (dd, J = 7.0, 31.4) Hz, 6H).
Scheme 9:<chemistry num="198"><img file="JP6830671B2_D0200.tif" /></chemistry>
Example 1-72 Intermediate Compound 72': Benzyl 4-Hydroxybutanoate<chemistry num="199"><img file="JP6830671B2_D0201.tif" /></chemistry>
H containing dihydrofuran-2 (3H) -one (5.1 g, 59.2 mmol) and NaOH (2.37 g, 59.2 mmol)<sub>2</sub>The mixture of O (60 mL) was heated at 100 ° C for 1 hour. The clear solution was then cooled and concentrated. The resulting solid was suspended in toluene, concentrated and H<sub>2</sub>O was removed. The resulting solid was suspended in acetone (60 mL) and TBAF (772 mg, 2.96 mmol) and (bromomethyl) benzene (12.2 g, 71.1 mmol) were added thereto. The reaction was heated to reflux for 3 hours. Then, the reaction mixture was mixed with EA (150 mL) and H.<sub>2</sub>It was partitioned between O (100 mL). Separate the organic layer and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 2: 1-1: 2 to give the title compound as a colorless oil (8.5 g, 74%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.37-7.34 (m, 5H), 5.13 (s, 2H), 3.68 (t, J = 6.2Hz, 2H), 2.50 (t, J = 7.2Hz, 2H), 1.94-1.87 (m, 2H).
Intermediate compound 72'': (S) -4- (benzyloxy) -4-oxobutyl 5-oxopyrrolidine-2-carboxylate<chemistry num="200"><img file="JP6830671B2_D0202.tif" /></chemistry>
A solution of HATU (2.9 g, 7.7 mmol) and DIPEA (998 mg, 7.7 mmol) in DMF (20 mL) containing L-pyroglutamic acid (731 mg, 5.7 mmol) and benzyl4-hydroxybutanoate (1.0 g, 5.1 mmol). Was added to. The mixture was stirred at 25 ° C for 16 hours. The reaction was concentrated and the residue was purified by prep-HPLC to give the title compound as a colorless oil (0.9 g, 57%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.39-7.33 (m, 5H), 6.34 (br.s., 1H), 5.13 (s). , 2H), 4.21 (t, J = 6.0Hz, 3H), 2.53-2.28 (m, 5H), 2.27-2.13 (m, 1H), 2.09-1.96 (m, 2H).
Compound 72: (S) -4- (5-oxopyrrolidine-2-carbonyloxy) butanoic acid<chemistry num="201"><img file="JP6830671B2_D0203.tif" /></chemistry>
Pd / C (90 mg) was added to a solution of EA (20 mL) containing (S) -4- (benzyloxy) -4-oxobutyl 5-oxopyrrolidine-2-carboxylate (900 mg, 3.0 mmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under an atmosphere. The reaction mixture was then filtered and the filtrate was concentrated to give the title compound as a white solid (580 mg, 91%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.98 (br.s., 1H), 4.31-4.16 (m, 3H), 2.52-2.39. (m, 5H), 2.35-2.19 (m, 1H), 2.06-1.94 (m, 2H).
Scheme 10:<chemistry num="202"><img file="JP6830671B2_D0204.tif" /></chemistry>
Example 1-73 Intermediate Compound 73': 4-Hydroxybutyl (2-methoxyphenyl) carbonate<chemistry num="203"><img file="JP6830671B2_D0205.tif" /></chemistry>
2-Methoxyphenol (1 g, 8.06 mmol) and Et<sub>3</sub>A solution of DCM (10 mL) containing N (977 mg, 9.68 mmol) was added drop by drop to a stirred solution of DCM (10 mL) containing triphosgene (788 mg, 2.66 mmol) at 0 ° C. for 10 minutes. The reaction was then gradually warmed and stirred at 25 ° C. for 2 hours. The above reaction solution was added drop by drop to a stirring solution of DCM (10 mL) containing butane-1,4-diol (2.18 g, 24.19 mmol) at 0 ° C for 10 minutes, after which the reaction mixture was added at 25 ° C. Stirred for 14 hours. The reaction mixture is then diluted with water (10 mL), separated and the organic phase washed with brine (10 mL) and Na.<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 10: 1 to give the title compound as a colorless oil (350 mg, 27%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.22 (t, J = 8.0Hz, 1H), 7.13 (d, J = 6.8Hz, 1H). ), 6.99-6.93 (m, 2H), 4.30 (t, J = 6.4Hz, 2H), 3.86 (s, 3H), 3.72 (t, J = 6.2Hz, 2H), 1.89-1.82 (m, 2H) , 1.75-1.68 (m, 2H).
Compound 73: 4-((2-Methoxyphenoxy) carbonyloxy) butanoic acid<chemistry num="204"><img file="JP6830671B2_D0206.tif" /></chemistry>
Add Jones reagent drop by drop to a stirred mixture of acetone (5 mL) containing 4-hydroxybutyl (2-methoxyphenyl) carbonate (350 mg, 1.46 mmol) and Celite® (diatomaceous earth, 700 mg) at 0 ° C. bottom. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (15 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with brine (5 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 10: 1 to give the title compound as a crystalline solid (180 mg, 49%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.22 (t, J = 8.0Hz, 1H), 7.13 (d, J = 6.8Hz, 1H). ), 6.99-6.93 (m, 2H), 4.33 (t, J = 6.2Hz, 2H), 3.86 (s, 3H), 2.55 (t, J = 7.4Hz, 2H), 2.12-2.05 (m, 2H) ..
Example 1-74 Intermediate Compound 74': 4-Hydroxybutyl (2-isopropyl-5-methylphenyl) carbonate<chemistry num="205"><img file="JP6830671B2_D0207.tif" /></chemistry>
2-Isopropyl-5-methylphenol (1g, 6.67 mmol) and Et<sub>3</sub>A solution of DCM (10 mL) containing N (741 mg, 7.33 mmol) was added drop by drop to a stirred solution of DCM (10 mL) containing triphosgene (651 mg, 2.20 mmol) at 0 ° C. for 10 minutes. The reaction was then gradually warmed and stirred at 0-25 ° C for 2 hours. The above reaction solution was added drop by drop to a stirred solution of DCM (10 mL) containing butane-1,4-diol (1.8 g, 20 mmol) at 0 ° C for 10 minutes, after which the reaction mixture was added at 0-25 ° C. Stirred for 14 hours. The reaction mixture is then diluted with water (10 mL), separated and the organic phase washed with brine (10 mL) and Na.<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 3: 1 to give the title compound as a colorless oil (900 mg, 51%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.19 (d, J = 8.0Hz, 1H), 7.04 (d, J = 7.8Hz, 1H). ), 6.90 (s, 1H), 4.30 (t, J = 6.4Hz, 2H), 3.72 (t, J = 6.2Hz, 2H), 3.10-3.03 (m, 1H), 2.32 (s, 3H), 1.89 -1.82 (m, 2H), 1.75-1.68 (m, 2H), 1.20 (d, J = 7.2Hz, 6H).
Compound 74: 4-((2-Isopropyl-5-methylphenoxy) carbonyloxy) butanoic acid<chemistry num="206"><img file="JP6830671B2_D0208.tif" /></chemistry>
Add one drop of Jones reagent to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl (2-isopropyl-5-methylphenyl) carbonate (900 mg, 3.38 mmol) and Celite® (diatomaceous earth, 1.8 g). It was added at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (30 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 8: 1 to give the title compound as a colorless oil (500 mg, 53%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.19 (d, J = 8.0Hz, 1H), 7.04 (d, J = 7.8Hz, 1H). ), 6.90 (s, 1H), 4.32 (t, J = 6.2Hz, 2H), 3.09-3.02 (m, 1H), 2.55 (t, J = 7.2Hz, 2H), 2.32 (s, 3H), 2.13 -2.06 (m, 2H), 1.20 (d, J = 6.8Hz, 6H).
Example 1-75 Intermediate Compound 75': Benzo [d] [1,3] Dioxol-5-yl (4-hydroxybutyl) carbonate<chemistry num="207"><img file="JP6830671B2_D0209.tif" /></chemistry>
Benzo [d] [1,3] dioxol-5-ol (1 g, 7.25 mmol) and Et<sub>3</sub>A solution of DCM (10 mL) containing N (878 mg, 8.70 mmol) was added drop by drop to a stirred solution of DCM (10 mL) containing triphosgene (708 mg, 2.39 mmol) at 0 ° C. for 10 minutes. The reaction was then gradually warmed and stirred at 0-25 ° C for 2 hours. The above reaction solution was added drop by drop to a stirring solution of DCM (10 mL) containing butane-1,4-diol (1.96 g, 21.74 mmol) at 0 ° C for 10 minutes, after which the reaction mixture was added at 0-25 °. Stir in C for 14 hours. The reaction mixture is then diluted with water (10 mL), separated and the organic phase washed with brine (10 mL) and Na.<sub>2</sub>SO<sub>4</sub>It was dried on and concentrated and the residue was purified by silica gel flash column using DCM / EA = 10: 1 to give the title compound as a yellow oil (500 mg, 27%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 6.75 (d, J = 8.4Hz, 1H), 6.67 (d, J = 2.0Hz, 1H). ), 6.60 (dd, J = 2.0, 8.4Hz, 1H), 5.97 (s, 2H), 4.26 (t, J = 6.6Hz, 2H), 3.68 (t, J = 6.2Hz, 2H), 1.85-1.78 (m, 2H), 1.71-1.64 (m, 2H).
Compound 75: 4-((benzo [d] [1,3] dioxol-5-yloxy) carbonyloxy) butanoic acid<chemistry num="208"><img file="JP6830671B2_D0210.tif" /></chemistry>
Acetone (10 mL) containing benzo [d] [1,3] dioxol-5-yl (4-hydroxybutyl) carbonate (500 mg, 1.97 mmol) and Celite® (diatomaceous earth, 1 g), drop by drop of Jones reagent. ) Was added to the stirred mixture at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (30 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using DCM / EA = 8: 1 to give the title compound as a brown solid (300 mg, 57%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 6.77 (d, J = 8.4Hz, 1H), 6.69 (d, J = 1.6Hz, 1H). ), 6.62 (dd, J = 2.0, 8.4Hz, 1H), 5.99 (s, 2H), 4.30 (t, J = 6.2Hz, 2H), 2.54 (t, J = 7.2Hz, 2H), 2.11-2.05 (m, 2H).
Example 1-76 Intermediate Compound 76': 4-Methylbenzyl Carbonochloridate<chemistry num="209"><img file="JP6830671B2_D0211.tif" /></chemistry>
Pyridine (4.86 g, 61.48 mmol) was added to a stirred solution of toluene (100 mL) containing triphosgene (14.5 g, 49.18 mmol) at 0 ° C. and the mixture was stirred for 30 minutes. Then, a solution of toluene (50 mL) containing p-tolylmethanol (5 g, 40.98 mmol) was added drop by drop for 30 minutes, after which the reaction proceeded at 0 ° C. for an additional hour. The reaction mixture was partitioned between water (50 mL) and EA (100 mL), the organic phase was separated and the EDTA was separated.<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1 to give the title compound as a colorless oil (6 g, 79%).
Intermediate compound 76'': 4-Hydroxybutyl 4-methylbenzyl carbonate<chemistry num="210"><img file="JP6830671B2_D0212.tif" /></chemistry>
One drop of DCM (20 mL) containing 4-methylbenzyl carbonochloridate (3 g, 16.30 mmol), Et.<sub>3</sub>A stirred solution of DCM (40 mL) containing N (5 g, 49.50 mmol) and butane-1,4-diol (4.4 g, 48.89 mmol) was added at 0 ° C. for 15 minutes. The reaction was stirred at 25 ° C. for 16 hours. The reaction mixture was then diluted with water (30 mL) and the aqueous phase was separated. The resulting organic phase was washed with brine (15 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried above, concentrated and the residue was purified by silica gel flash column using PE / EA = 3: 1 to give the title compound as a colorless oil (700 mg, 18%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.28 (d, J = 8.0Hz, 2H), 7.17 (d, J = 7.6Hz, 2H). ), 5.11 (s, 2H), 4.18 (t, J = 6.4Hz, 2H), 3.67 (t, J = 6.4Hz, 2H), 2.35 (s, 3H), 1.80-1.73 (m, 2H), 1.68 -1.61 (m, 2H).
Compound 76: 4-((4-Methylbenzyl) oxycarbonyloxy) butanoic acid<chemistry num="211"><img file="JP6830671B2_D0213.tif" /></chemistry>
The Jones reagent was added drop by drop to a stirred mixture of acetone (10 mL) containing 4-hydroxybutyl 4-methylbenzyl carbonate (700 mg, 2.94 mmol) and Celite® (diatomaceous earth, 1.4 g) at 0 ° C. .. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (20 mL) and then filtered. Wash the filtered cake with EA (10 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 2: 1 to give the title compound as a crystalline solid (400 mg, 54%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.28 (d, J = 8.0Hz, 2H), 7.17 (d, J = 8.0Hz, 2H). ), 5.11 (s, 2H), 4.20 (t, J = 6.4Hz, 2H), 2.47 (t, J = 7.2Hz, 2H), 2.35 (s, 3H), 2.03-1.96 (m, 2H).
Example 1-77 Intermediate Compound 77': 4-Hydroxybutyl (Tetrahydro-2H-Pyran-4-yl) Carbonate<chemistry num="212"><img file="JP6830671B2_D0214.tif" /></chemistry>
Tetrahydro-2H-pyran-4-ol (1.0 g, 9.8 mmol) and Et<sub>3</sub>A solution of DCM (10 mL) containing N (1.2 g, 11.8 mmol) was added drop by drop to a solution of DCM (10 mL) containing triphosgene (1.0 g, 3.2 mmol) at 0 ° C. After the addition was complete, the reaction was stirred at 0 ° C. for 1 hour. The slurry was then added drop by drop to a suspension of DCM (10 mL) containing butane-1,4-diol (2.7 g, 29.4 mmol) at 0 ° C. The resulting mixture was gradually warmed to 25 ° C and stirred for 16 hours. The reaction was stopped with water (10 mL) and separated. Organic phase Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1-1: 1 to give the title compound as a colorless oil (380 mg, 18%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.82-4.78 (m, 1H), 4.18 (t, J = 6.4Hz, 2H), 3.97. -3.92 (m, 2H), 3.69 (t, J = 6.2Hz, 2H), 3.70-3.53 (m, 2H), 2.06-1.93 (m, 2H), 1.87-1.59 (m, 6H).
Compound 77: 4-((Tetrahydro-2H-pyran-4-yl) oxycarbonyloxy) butanoic acid<chemistry num="213"><img file="JP6830671B2_D0215.tif" /></chemistry>
Stirring mixture of acetone (6 mL) containing 4-hydroxybutyl (tetrahydro-2H-pyran-4-yl) carbonate (300 mg, 1.4 mmol) and Celite® (diatomaceous earth, 0.6 g), drop by drop with Jones reagent. Was added to. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with isopropanol droplets, diluted with EA (20 mL) and then filtered. Wash the filtered cake with EA (20 mL), combine the filtrates, wash with brine (10 mL x 2), Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 50: 1-5: 1 to give the title compound as a crystalline solid (110 mg, 34%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.84-4.77 (m, 1H), 4.20 (t, J = 6.4Hz, 2H), 4.03. -3.86 (m, 2H), 3.64-3.44 (m, 2H), 2.50 (t, J = 7.6Hz, 2H), 2.05-1.88 (m, 4H), 1.79-1.70 (m, 2H).
Scheme 11:<chemistry num="214"><img file="JP6830671B2_D0216.tif" /></chemistry>
Example 1-78 Intermediate Compound 78': tert-Butyl (4-Hydroxybutyl) carbonate<chemistry num="215"><img file="JP6830671B2_D0217.tif" /></chemistry>
(Boc)<sub>2</sub>O (2.05 g, 9.4 mmol) and DMAP (100 mg) were added to a stirred solution of DCM (100 mL) containing butane-1,4-diol (10 g, 111.11 mmol). The reaction was stirred at 25 ° C. for 16 hours. Then the reaction mixture is saturated with NH.<sub>4</sub>It was diluted with Cl aqueous solution (20 mL) and stirred for 5 minutes. The aqueous phase was separated and extracted with DCM (20 mL). Combine organic phases, wash with saturated brine (30 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 10: 1 to give the title compound as a colorless oil (1 g, 56%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.10 (t, J = 6.6Hz, 2H), 3.68 (q, J = 6.0Hz, 2H). ), 1.79-1.72 (m, 2H), 1.69-1.62 (m, 2H), 1.48 (s, 9H), 1.34 (t, J = 5.2Hz, 1H).
Compound 78: 4- (tert-butoxycarbonyloxy) butanoic acid<chemistry num="216"><img file="JP6830671B2_D0218.tif" /></chemistry>
The Jones reagent was added little by little to a stirred mixture of acetone (10 mL) containing tert-butyl (4-hydroxybutyl) carbonate (800 mg, 4.21 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-6: 1 to give the title compound as a colorless oil (500 mg, 58%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 4.12 (t, J = 6.2Hz, 2H), 2.49 (t, J = 7.4Hz, 2H). ), 2.03-1.96 (m, 2H), 1.48 (s, 9H).
Scheme 12:<chemistry num="217"><img file="JP6830671B2_D0219.tif" /></chemistry>
Example 1-79 Intermediate Compound 79': Benzyl 4- (Chlorocarbonyloxy) Butanoate<chemistry num="218"><img file="JP6830671B2_D0220.tif" /></chemistry>
Pyridine (305 mg, 3.9 mmol) was gradually added to a solution of toluene (10 mL) containing triphosgene (976 mg, 3.4 mmol) at 0 ° C. and stirred for 0.5 hours. A solution of toluene (5 mL) containing benzyl 4-hydroxybutanoate (500 mg, 2.6 mmol) was added to the formation slurry at 0 ° C. The reaction was warmed and stirred at 25 ° C for 1.5 hours. The reaction mixture was then partitioned between water (15 mL) and EA (15 mL). The organic layer is separated, washed with brine (10 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on and filtered. The filtrate was concentrated to give a pale yellow oil which was purified by silica gel flash column using PE / EA = 20: 1-5: 1 to give the title compound as a colorless oil (490 mg, 74%). ..<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.43-7.27 (m, 5H), 5.14 (s, 2H), 4.37 (t, J = 6.2Hz, 2H), 2.50 (t, J = 7.2Hz, 2H), 2.12-2.05 (m, 2H).
Intermediate compound 79'': Benzyl 4-((1-methylpiperidin-4-yl) oxycarbonyloxy) butanoate<chemistry num="219"><img file="JP6830671B2_D0221.tif" /></chemistry>
Benzyl 4- (chlorocarbonyloxy) butanoate (500 mg, 1.95 mmol) and Et<sub>3</sub>One drop at a time in a solution of DCM (5 mL) containing N (395 mg, 3.91 mmol) in a stirred solution of DCM (5 mL) containing 1-methylpiperidine-4-ol (225 mg, 1.96 mmol) at 0 ° C for 10 minutes. Added. The reaction mixture was then diluted with water (5 mL), the resulting aqueous phase was separated and extracted with DCM (5 mL). Combine organic phases, wash with brine (5 mL), Na<sub>2</sub>SO<sub>4</sub>It was dried on top, filtered and concentrated. The residue was purified by prep-HPLC to give the title compound as a colorless oil (240 mg, 37%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.43-7.29 (m, 5H), 5.12 (s, 2H), 4.77 (br.s. , 1H), 4.18 (t, J = 6.2Hz, 2H), 2.84-2.65 (m, 4H), 2.51-2.47 (m, 5H), 2.18-1.99 (m, 4H), 1.98-1.83 (m, 2H) ).
Compound 79: 4-((1-methylpiperidin-4-yl) oxycarbonyloxy) butanoic acid<chemistry num="220"><img file="JP6830671B2_D0222.tif" /></chemistry>
Pd / C (40 mg) was added to a solution of methanol (3 mL) containing benzyl 4-((1-methylpiperidin-4-yl) oxycarbonyloxy) butanoate (200 mg, 0.6 mmol). Mixture H at 25 ° C<sub>2</sub>The mixture was stirred for 16 hours under the atmosphere. The mixture was then filtered through Celite® (diatomaceous earth) and the filtered cake was washed with methanol (3 mL). The filtrates were combined, concentrated and the residue was purified by prep-HPLC to give the title compound as a crystalline solid (15 mg, 10%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 4.92 (br.s., 1H), 4.22 (t, J = 6.4Hz, 2H), 3.19 (br.s., 4H), 2.77 (s, 3H), 2.44 (t, J = 7.2Hz, 2H), 2.35-2.20 (m, 2H), 2.13-2.08 (m, 2H), 2.05-1.98 (m, 2H).
Scheme 13:<chemistry num="221"><img file="JP6830671B2_D0223.tif" /></chemistry>
Example 1-80 Intermediate Compound 80': 4-Hydroxybutyl 2-chloroacetate<chemistry num="222"><img file="JP6830671B2_D0224.tif" /></chemistry>
A solution of DCM (10 mL) containing 2-chloroacetyl chloride (5 g, 44.25 mmol) is added drop by drop for 10 minutes with butane-1,4-diol (19.9 g, 221.11 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (40 mL) containing N (8.9 g, 88.5 mmol) at 0 ° C. The reaction was gradually warmed and stirred at 0-25 ° C for at least 16 hours. Then, the reaction mixture, H<sub>2</sub>Dilute with O (20 mL) and stir for 5 minutes. The aqueous phase was separated and extracted with DCM (20 mL). Combine organic phases, wash with saturated brine (30 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 5: 1 to give the title compound as a colorless oil (3.2 g, 44%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 4.24 (t, J = 6.6Hz, 2H), 4.07 (s, 2H), 3.69 (t). , J = 6.4Hz, 2H), 1.82-1.75 (m, 2H), 1.68-1.61 (m, 2H).
Intermediate Compound 80'': 2- (4-Hydroxybutoxy) -2-oxoethyl 2-ethylbenzoate<chemistry num="223"><img file="JP6830671B2_D0225.tif" /></chemistry>
Et<sub>3</sub>N (365 mg, 3.61 mmol) and 4-hydroxybutyl 2-chloroacetate (300 mg, 1.81 mmol) were added to a stirred solution of acetone (10 mL) containing 2-ethylbenzoic acid (542 mg, 3.61 mmol). The reaction was stirred at 50 ° C. for 5 hours. Then the reaction mixture was added to DCM (20 mL) and H.<sub>2</sub>It was partitioned between O (10 mL). The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (20 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (175 mg, 35%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.02-7.95 (m, 1H), 7.49-7.44 (m, 1H), 7.32-7.24 ( m, 2H), 4.83 (s, 2H), 4.25 (t, J = 6.4Hz, 2H), 3.67 (t, J = 6.4Hz, 2H), 3.08-2.97 (m, 2H), 1.81-1.74 (m) , 2H), 1.67-1.60 (m, 2H), 1.28-1.22 (m, 3H).
Compound 80: 4- (2- (2-ethylbenzoyloxy) acetoxy) butanoic acid<chemistry num="224"><img file="JP6830671B2_D0226.tif" /></chemistry>
Add Jones reagent little by little to a stirred mixture of acetone (5 mL) containing 2- (4-hydroxybutoxy) -2-oxoethyl 2-ethylbenzoate (170 mg, 0.61 mmol) and Celite® (diatomaceous earth, 2 g). Added at ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (90 mg, 51%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.96 (d, J = 7.6Hz, 1H), 7.46 (t, J = 7.0Hz, 1H). ), 7.31-7.25 (m, 2H), 4.83 (s, 2H), 4.28 (t, J = 6.2Hz, 2H), 3.00 (q, J = 7.6Hz, 2H), 2.47 (t, J = 7.4Hz) , 2H), 2.06-1.99 (m, 2H), 1.24 (t, J = 7.4Hz, 3H).
Example 1-81 Intermediate Compound 81': 2- (4-Hydroxybutoxy) -2-oxoethyl 2,4-dimethylbenzoate<chemistry num="225"><img file="JP6830671B2_D0227.tif" /></chemistry>
Et<sub>3</sub>N (364 mg, 3.6 mmol) and 4-hydroxybutyl 2-chloroacetate (300 mg, 1.81 mmol) were added to a stirred solution of acetone (10 mL) containing 2,4-dimethylbenzoic acid (405 mg, 2.7 mmol). .. The reaction was stirred at 50 ° C. for 5 hours. Then the reaction mixture was added to DCM (20 mL) and H.<sub>2</sub>It was partitioned between O (10 mL). The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (20 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (350 mg, 69%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.92 (d, J = 8.0Hz, 1H), 7.08-7.06 (m, 2H), 4.81. (s, 2H), 4.24 (t, J = 6.6Hz, 2H), 3.67 (t, J = 6.2Hz, 2H), 2.59 (s, 3H), 2.36 (s, 3H), 1.80-1.73 (m, 2H), 1.66-1.60 (m, 2H), 1.44 (br.s., 1H).
Compound 81: 4- (2- (2,4-dimethylbenzoyloxy) acetoxy) butanoic acid<chemistry num="226"><img file="JP6830671B2_D0228.tif" /></chemistry>
Stirring mixture of acetone (10 mL) containing 2- (4-hydroxybutoxy) -2-oxoethyl 2,4-dimethylbenzoate (300 mg, 1.07 mmol) and Celite® (diatomaceous earth, 2 g) in small portions with Jones reagent. Was added at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a colorless oil (150 mg, 48%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.92 (d, J = 8.4Hz, 1H), 7.18-7.06 (m, 2H), 4.81 (s, 2H), 4.27 (t, J = 6.2Hz, 2H), 2.58 (s, 3H), 2.47 (t, J = 7.4Hz, 2H), 2.36 (s, 3H), 2.06-2.00 (m, 2H).
Example 1-82 Intermediate Compound 82': 2- (4-Hydroxybutoxy) -2-oxoethyl 2,3-dimethoxybenzoate<chemistry num="227"><img file="JP6830671B2_D0229.tif" /></chemistry>
Et<sub>3</sub>N (364 mg, 3.6 mmol) and 4-hydroxybutyl 2-chloroacetate (300 mg, 1.81 mmol) were added to a stirred solution of acetone (10 mL) containing 2,3-dimethoxybenzoic acid (655 mg, 3.6 mmol). The reaction was stirred at 50 ° C. for 5 hours. Then the reaction mixture was added to DCM (20 mL) and H.<sub>2</sub>It was partitioned between O (10 mL). The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (20 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 2: 1 to give the title compound as a colorless oil (200 mg, 35%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.43 (dd, J = 2.4, 6.8Hz, 1H), 7.14-7.08 (m, 2H). , 4.84 (s, 2H), 4.25 (t, J = 6.5Hz, 2H), 3.93 (s, 3H), 3.89 (s, 3H), 3.67 (t, J = 6.2Hz, 2H), 1.81-1.74 ( m, 2H), 1.67-1.60 (m, 2H).
Compound 82: 4- (2- (2,3-dimethoxybenzoyloxy) acetoxy) butanoic acid<chemistry num="228"><img file="JP6830671B2_D0230.tif" /></chemistry>
Stirring mixture of acetone (5 mL) containing 2- (4-hydroxybutoxy) -2-oxoethyl 2,3-dimethoxybenzoate (200 mg, 0.64 mmol) and Celite® (diatomaceous earth, 2 g) in small portions with Jones reagents. Was added at 0 ° C. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 5: 1-2: 1 to give the title compound as a colorless oil (100 mg, 48%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.43 (dd, J = 2.6, 7.0Hz, 1H), 7.14-7.09 (m, 2H). , 4.84 (s, 2H), 4.27 (t, J = 6.0Hz, 2H), 3.93 (s, 3H), 3.89 (s, 3H), 2.47 (t, J = 7.2Hz, 2H), 2.06-1.99 ( m, 2H).
Example 1-83 Intermediate Compound 83': 2- (4-Hydroxybutoxy) -2-oxoethylbenzoate<chemistry num="229"><img file="JP6830671B2_D0231.tif" /></chemistry>
Et<sub>3</sub>N (364 mg, 3.6 mmol) and 4-hydroxybutyl 2-chloroacetate (300 mg, 1.81 mmol) were added to a stirred solution of acetone (10 mL) containing benzoic acid (439 mg, 3.6 mmol). The reaction was stirred at 50 ° C. for 5 hours. Then the reaction mixture was added to DCM (20 mL) and H.<sub>2</sub>It was partitioned between O (10 mL). The aqueous phase was separated and extracted with DCM (10 mL). Combine organic phases, wash with saturated brine (20 mL), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and evaporated. The residue was purified by silica gel flash column using Hex / EA = 6: 1 to give the title compound as a colorless oil (260 mg, 57%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.10 (d, J = 7.2Hz, 2H), 7.60 (t, J = 7.4Hz, 1H). ), 7.47 (t, J = 7.8Hz, 2H), 4.85 (s, 2H), 4.25 (t, J = 6.6Hz, 2H), 3.67 (t, J = 6.2Hz, 2H), 1.80-1.73 (m) , 2H), 1.66-1.59 (m, 2H).
Compound 83: 4- (2- (benzoyloxy) acetoxy) butanoic acid<chemistry num="230"><img file="JP6830671B2_D0232.tif" /></chemistry> Add Jones reagent little by little to a stirred mixture of acetone (5 mL) containing 2- (4-hydroxybutoxy) -2-oxoethylbenzoate (250 mg, 0.99 mmol) and Celite® (diatomaceous earth, 2 g) at 0 ° C. Was added in. The reaction proceeded at 0 ° C for 1 hour or longer, and the reaction progress was monitored by TLC. Upon completion, the reaction was stopped with iPrOH droplets, diluted with EA (10 mL) and then filtered. Wash the filtered cake with EA (5 mL), combine the filtrates, wash with saturated brine (2 mL x 2), anhydrous Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using Hex / EA = 10: 1-5: 1 to give the title compound as a white solid (140 mg, 53%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 8.10 (d, J = 7.2Hz, 2H), 7.60 (t, J = 7.4Hz, 1H). ), 7.47 (t, J = 7.8Hz, 2H), 4.85 (s, 2H), 4.27 (t, J = 6.2Hz, 2H), 2.46 (t, J = 7.4Hz, 2H), 2.05-1.98 (m) , 2H).
Scheme 14:<chemistry num="231"><img file="JP6830671B2_D0233.tif" /></chemistry>
Example 1-84 Intermediate Compound 84': Benzyl 4- (2-chloroacetoxy) butanoate<chemistry num="232"><img file="JP6830671B2_D0234.tif" /></chemistry>
A solution of DCM (10 mL) containing 2-chloroacetyl chloride (865 mg, 7.65 mmol) with benzyl 4-hydroxybutanoate (1350 mg, 6.96 mmol) and Et.<sub>3</sub>It was added to a stirred solution of DCM (10 mL) containing N (1406 mg, 13.92 mmol) at 0 ° C. for 10 minutes. The reaction was stirred at 25 ° C. for 16 hours. After completion, the reaction mixture was diluted with water (10 mL). Collect the organic phase, wash with brine (5 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 8: 1 to give the title compound as a colorless oil (977 mg, 52%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.41-7.30 (m, 5H), 5.13 (s, 2H), 4.24 (t, J = 6.4Hz, 2H), 4.02 (s, 2H), 2.47 (t, J = 7.4Hz, 2H), 2.07-2.00 (m, 2H).
Intermediate compound 84': Benzyl 4- (2-2- (tert-butoxycarbonyl) aminoacetoxyacetoxy) butanoate<chemistry num="233"><img file="JP6830671B2_D0235.tif" /></chemistry>
2- (tert-Butyloxycarbonylamino) acetic acid (654 mg, 3.74 mmol), Et<sub>3</sub>A solution of acetone (10 mL) containing N (686 mg, 6.79 mmol) and benzyl 4- (2-chloroacetoxy) butanoate (917 mg, 3.40 mmol) was stirred at 50 ° C. for 16 hours. The mixture is then diluted with EA (30 mL) and water (10 mL), the aqueous phase is separated, the organic phase is washed with brine (10 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 5: 1 to give the title compound as a colorless oil (1.16 g, 84%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 7.41-7.32 (m, 5H), 5.13 (s, 2H), 5.01 (br. S. , 1H), 4.64 (s, 2H), 4.22 (t, J = 6.4Hz, 2H), 4.04 (d, J = 5.6Hz, 2H), 2.45 (t, J = 7.2Hz, 2H), 2.05-1.98 (t, J = 6.8Hz, 2H), 1.45 (s, 9H).
Intermediate compound 84''': 2,2-dimethyl-4,7,10-trioxo-3,8,11-trioxa-5-azapentadecane-15-acid<chemistry num="234"><img file="JP6830671B2_D0236.tif" /></chemistry>
Pd / C (100 mg) was added to a stirred solution of THF (10 mL) containing benzyl 4- (2-2- (tert-butoxycarbonyl) aminoacetoxyacetoxy) butanoate (1 g, 2.44 mmol) and the mixture was added at 25 ° C. In H<sub>2</sub>The mixture was stirred for 16 hours under the atmosphere. The reaction mixture was then filtered through Celite® (diatomaceous earth). The filtered cake was washed with EA (5 mL), the filtrates were combined and concentrated. The residue was purified by prep-HPLC to give the title compound as a colorless oil (600 mg, 77%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 5.11 (br.s., 1H), 4.70 (s, 2H), 4.24 (t, J). = 5.8Hz, 2H), 4.11 (d, J = 6.0Hz, 2H), 2.46 (t, J = 6.8Hz, 2H), 2.10-2.02 (m, 2H), 1.46 (s, 9H).
Compound 84: 4- (2- (2-aminoacetoxy) acetoxy) butanoic acid<chemistry num="235"><img file="JP6830671B2_D0237.tif" /></chemistry>
2,2-Dimethyl-4,7,10-trioxo-3,8,11-trioxa-5-azapentadecane-15-acid (600 mg, 1.88 mmol) was dissolved in HCl / EA (6 mL, about 2 M). The solution was stirred at 25 ° C for 16 hours. The reaction mixture is then filtered and the collected solid is Et.<sub>2</sub>Washing with O (5 mL) gave the title compound as a crystalline solid in the form of an HCl salt (450 mg, 94%).<sup>1</sup>1 H NMR at 400MHz, D<sub>2</sub>When the title compound was characterized using O as a solvent, the results are as follows: δ = 4.84 (s, 2H), 4.23 (t, J = 6.0Hz, 2H), 4.03 ( s, 2H), 2.43 (t, J = 7.2Hz, 2H), 1.98-1.91 (m, 2H).
Scheme 15:<chemistry num="236"><img file="JP6830671B2_D0238.tif" /></chemistry>
Example 1-85 Intermediate Compound 85': Benzyl 4- (2-chloropropanoyloxy) butanoate<chemistry num="237"><img file="JP6830671B2_D0239.tif" /></chemistry>
One drop at a time in a solution of DCM (10 mL) containing 2-chloropropanoyl chloride (1080 mg, 8.50 mmol), benzyl 4-hydroxybutanoate (1.5 g, 7.73 mmol), Et.<sub>3</sub>It was added to a stirring solution of DCM (10 mL) containing N (1562 mg, 15.47 mmol) at 0 ° C and the reaction was stirred at 25 ° C for 16 hours. The reaction mixture is then diluted with water (10 mL), the aqueous phase is separated, the organic phase is washed with brine (10 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 8: 1 to give the title compound as a colorless oil (1.38 g, 63%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 7.41-7.30 (m, 5H), 5.13 (s, 2H), 4.36 (q, J = 7.0Hz, 1H), 4.22 (t, J = 6.0Hz, 2H), 2.48 (t, J = 7.4Hz, 2H), 2.07-2.00 (m, 2H), 1.67 (d, J = 6.8Hz, 3H) ..
Intermediate Compound 85'': Benzyl 4- (2- (2- (tert-butoxycarbonyl) aminoacetoxy) propanoyloxy) butanoate<chemistry num="238"><img file="JP6830671B2_D0240.tif" /></chemistry> Et<sub>3</sub>N (782 mg, 7.75 mmol) and NaI (20 mg), 2- (tert-butoxycarbonylamino) acetic acid (746 mg, 4.26 mmol) and benzyl 4- (2-chloropropanoyloxy) butanoate (1.1 g, 3.87 mmol) Was added to a stirred solution of DMF (15 mL) containing, and the reaction mixture was stirred at 70 ° C. for 16 hours. The mixture was then concentrated and the residue was partitioned between EA (20 mL) and water (10 mL). Separate the aqueous phase, wash the organic phase with brine (10 mL) and Na<sub>2</sub>SO<sub>4</sub>It was dried on top and concentrated. The residue was purified by silica gel flash column using PE / EA = 5: 1 to give the title compound as a colorless oil (1.1 g, 69%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.43-7.29 (m, 5H), 5.15-5.09 (m, 3H), 5.00 (br. s., 1H), 4.19 (t, J = 6.2Hz, 2H), 4.06 (dd, J = 6.0, 18.4Hz, 1H), 3.93 (dd, J = 5.0, 14.2Hz, 1H), 2.44 (t, J = 7.2Hz, 2H), 2.03-1.97 (m, 2H), 1.49 (d, J = 6.8Hz, 3H), 1.45 (s, 9H).
Intermediate compound 85''': 2,2,9-trimethyl-4,7,10-trioxo-3,8,11-trioxa-5-azapentadecane-15-acid<chemistry num="239"><img file="JP6830671B2_D0241.tif" /></chemistry> Pd / C (100 mg) was added to a stirred solution of THF (10 mL) containing benzyl 4- (2- (2- (tert-butoxycarbonyl) aminoacetoxy) propanoyloxy) butanoate (1.1 g, 2.60 mmol). , H the reaction mixture at 25 ° C<sub>2</sub>The mixture was stirred for 16 hours under the atmosphere. The reaction mixture was then filtered through Celite® (diatomaceous earth) and the filtered cake was washed with EA (5 mL). The filtrates were combined, concentrated and the residue was purified by prep-HPLC to give the title compound as a colorless oil (800 mg, 92%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 5.21 (q, J = 6.8Hz, 1H), 5.12 (br.s., 1H), 4.29-4.09 (m, 3H), 3.94 (dd, J = 4.6, 18.8Hz, 1H), 2.45 (t, J = 6.8Hz, 2H), 2.09-1.98 (m, 2H), 1.50 (d, J = 7.2Hz, 3H), 1.46 (s, 9H).
Compound 85: 4- (2- (2-aminoacetoxy) propanoyloxy) butanoic acid<chemistry num="240"><img file="JP6830671B2_D0242.tif" /></chemistry>
2,2,9-trimethyl-4,7,10-trioxo-3,8,11-trioxa-5-azapentadecane-15-acid (770 mg, 2.31 mmol) 0 in HCl / EA (10 mL, approx. 2 M) Dissolved at ° C and the solution was stirred at 25 ° C for 16 hours. The reaction mixture was then concentrated and the residue was purified by prep-HPLC to give the title compound as a colorless oil in the form of an HCl salt (48 mg, 9%).<sup>1</sup>1 H NMR at 400MHz, D<sub>2</sub>When the title compound was characterized using O as a solvent, the results are as follows: δ = 5.26 (d, J = 7.2Hz, 1H), 4.23 (dt, J = 2.8, 6.0Hz). , 2H), 4.00 (d, J = 1.6Hz, 2H), 2.45 (t, J = 7.0Hz, 2H), 2.01-1.91 (m, 2H), 1.50 (d, J = 7.2Hz, 3H).
Scheme 16:<chemistry num="241"><img file="JP6830671B2_D0243.tif" /></chemistry>
Example 1-86 Intermediate Compound 86': Benzyl 4- (2- (2-acetamide acetamide) propanoyloxy) butanoate<chemistry num="242"><img file="JP6830671B2_D0244.tif" /></chemistry>
Benzyl 4- (2-chloropropanoyloxy) butanoate (500 mg, 1.76 mmol), 2-acetamidoacetic acid (260 mg, 2.22 mmol), NaI (138 mg, 0.92 mmol) and Et.<sub>3</sub>A mixture of DMF (5 mL) containing N (0.52 mL, 3.69 mmol) was stirred at 80 ° C. for 16 hours. The reaction mixture was filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 5: 1 to give the title compound as a colorless oil (500 mg, 78%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.39-7.31 (m, 5H), 6.01 (br.s., 1H), 5.13 (s). , 2H), 5.10 (t, J = 3.2Hz, 1H), 4.25-4.18 (m, 3H), 4.03 (dd, J = 4.8, 18.8Hz, 1H), 2.44 (t, J = 7.4Hz, 2H) , 2.04-1.97 (m, 5H), 1.50 (d, J = 7.2Hz, 3H).
Compound 86: 4- (2- (2-acetamidoacetoxy) propanoyloxy) butanoic acid<chemistry num="243"><img file="JP6830671B2_D0245.tif" /></chemistry>
Pd / C (150 mg) was added to a stirred solution of THF (10 mL) containing benzyl 4- (2- (2-acetamidoacetoxy) propanoyloxy) butanoate (500 mg, 1.37 mmol) and the reaction was added at 25 ° C. In H for 16 hours<sub>2</sub>Stirred in the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 1: 50 to give the title compound as a white solid (280 mg, 74%).<sup>1</sup>1 H NMR at 400 MHz, d<sub>6</sub>When -DMSO was used as the solvent and the title compound was characterized, the results are as follows: δ = 12.15 (s, 1H), 8.34 (t, J = 5.6Hz, 1H), 5.02 (q, J = 6.8Hz, 1H), 4.12-4.06 (m, 2H), 3.93 (dd, J = 6.2, 17.8Hz, 1H), 3.84 (dd, J = 6.0, 17.6Hz, 1H), 2.28 ( t, J = 7.2Hz, 2H), 1.85 (s, 3H), 1.84-1.77 (m, 2H), 1.41 (d, J = 7.2Hz, 3H).
Scheme 17:<chemistry num="244"><img file="JP6830671B2_D0246.tif" /></chemistry>
Example 1-87 Intermediate Compound 87': Benzyl 4-((1-chloroethoxy) carbonyloxy) butanoate<chemistry num="245"><img file="JP6830671B2_D0247.tif" /></chemistry>
1 drop each of 1-chloroethyl carbonochloridate (1.0 g, 7.2 mmol), benzyl 4-hydroxybutanoate (1.0 g, 5.2 mmol) and Et.<sub>3</sub>It was added to a solution of DCM (10 mL) containing N (1.1 mL, 1.7 mmol) for at least 5 minutes at -5-0 ° C. The reaction was then stopped with water (5 mL). Separate the organic layer and Na<sub>2</sub>SO<sub>4</sub>It was dried on and filtered. The filtrate was concentrated and the residue was purified by silica gel flash column using PE / EA = 20: 1-5: 1 to give the title compound as a colorless oil (680 mg, 44%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.39-7.33 (m, 5H), 6.41 (q, J = 5.6Hz, 1H), 5.13 (s, 2H), 4.26 (t, J = 6.4Hz, 2H), 2.49 (t, J = 7.4Hz, 2H), 2.09-2.02 (m, 2H), 1.82 (d, J = 6.0Hz, 3H) ..
Intermediate compound 87'': Benzyl 4-((1-acetoxyethoxy) carbonyloxy) butanoate<chemistry num="246"><img file="JP6830671B2_D0248.tif" /></chemistry>
Benzyl 4-((1-chloroethoxy) carbonyloxy) butanoate (180 mg, 598 μmol), acetic acid (720 mg, 12.0 mmol) and Et<sub>3</sub>A solution of acetone (4 mL) containing N (151 mg, 1.5 mmol) was heated under reflux for 2 days. The reaction was diluted with EA (20 mL) and washed with water (10 mL). Separate the organic layer and Na<sub>2</sub>SO<sub>4</sub>It was dried on and filtered. The filtrate was concentrated and the residue was purified by silica gel flash column using PE / EA = 10: 1-3: 1 to give the title compound as a colorless oil (120 mg, 64%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.38-7.33 (m, 5H), 6.74 (q, J = 3.6Hz, 1H), 5.13 (s, 2H), 4.21 (t, J = 6.2Hz, 2H), 2.48 (t, J = 4.8Hz, 2H), 2.08 (s, 3H), 2.06-2.01 (m, 2H), 1.51 (d, J = 3.6Hz, 3H).
Compound 87: 4-((1-acetoxyethoxy) carbonyloxy) butanoic acid<chemistry num="247"><img file="JP6830671B2_D0249.tif" /></chemistry>
Pd / C (10 mg) was added to a mixture of EA (2 mL) containing benzyl 4-((1-acetoxyethoxy) carbonyloxy) butanoate (110 mg, 339 μmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated to give the title compound as a colorless oil (70 mg, 88%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 6.75 (q, J = 5.2Hz, 1H), 4.23 (t, J = 6.2Hz, 2H). ), 2.49 (t, J = 7.2Hz, 2H), 2.09 (s, 3H), 2.06-1.99 (m, 2H), 1.52 (d, J = 5.2Hz, 3H).
Example 1-88 Intermediate Compound 88': Benzyl 4- (1- (isobutyryloxy) ethoxycarbonyloxy) butanoate<chemistry num="248"><img file="JP6830671B2_D0250.tif" /></chemistry>
Benzyl 4-((1-chloroethoxy) carbonyloxy) butanoate (300 mg, 998 μmol), isobutyric acid (879 mg, 10.0 mmol), NaI (179 mg, 1.2 mmol) and Et.<sub>3</sub>A solution of acetone (6 mL) containing N (121 mg, 1.2 mmol) was heated under reflux for 2 days. The reaction mixture is then diluted with EA (20 mL) and saturated with LVDS.<sub>3</sub>Washed with (10 mL). Separate the organic layer and Na<sub>2</sub>SO<sub>4</sub>It was dried on and filtered. The filtrate was concentrated and the residue was purified by silica gel column using PE / EA = 50: 1-5: 1 to give the title compound as a colorless oil (300 mg, 85%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 7.42-7.29 (m, 5H), 6.74 (q, J = 5.2Hz, 1H), 5.12 (s, 2H), 4.21 (t, J = 6.2Hz, 2H), 2.58-2.51 (m, 1H), 2.48 (t, J = 7.2Hz, 2H), 2.06-2.00 (m, 2H), 1.51 ( d, J = 5.6Hz, 3H), 1.17 (d, J = 7.2Hz, 6H).
Compound 88: 4- (1- (isobutyryloxy) ethoxycarbonyloxy) butanoic acid<chemistry num="249"><img file="JP6830671B2_D0251.tif" /></chemistry>
Pd / C (28 mg) was added to a mixture of EA (6 mL) containing benzyl 4- (1- (isobutyryloxy) ethoxycarbonyloxy) butanoate (280 mg, 795 μmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated to give the title compound as a colorless oil (200 mg, 96%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as the solvent to characterize the title compound, and the results are as follows: δ = 6.74 (q, J = 5.6Hz, 1H), 4.23 (t, J = 6.0Hz, 2H). ), 2.60-2.53 (m, 1H), 2.49 (t, J = 7.2Hz, 2H), 2.06-1.99 (m, 2H), 1.52 (d, J = 5.2Hz, 3H), 1.18 (d, J = 6.8Hz, 6H).
Example 1-89 Intermediate Compound 89': 1-((4-benzyloxy-4-oxobutoxy) carbonyloxy) ethylbenzoate<chemistry num="250"><img file="JP6830671B2_D0252.tif" /></chemistry>
Benzyl 4-((1-chloroethoxy) carbonyloxy) butanoate (300 mg, 998 μmol), benzoic acid (244 mg, 2.0 mmol), NaI (179 mg, 1.2 mmol) and Et.<sub>3</sub>A solution of acetone (6 mL) containing N (121 mg, 1.2 mmol) was heated under reflux for 3 days. The reaction is then diluted with EA (20 mL) and saturated with LVDS.<sub>3</sub>Washed with (10 mL). Separate the organic layer and Na<sub>2</sub>SO<sub>4</sub>It was dried on and filtered. The filtrate was concentrated and the residue was purified by silica gel flash column using PE / EA = 100: 1-10: 1 to give the title compound as a colorless oil (240 mg, 62%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.05 (d, J = 7.2Hz, 2H), 7.58 (t, J = 7.4Hz, 1H). ), 7.44 (t, J = 7.6Hz, 2H), 7.39-7.28 (m, 5H), 7.02 (q, J = 5.6Hz, 1H), 5.11 (s, 2H), 4.32-4.12 (m, 2H) , 2.48 (t, J = 7.6Hz, 2H), 2.07-1.97 (m, 2H), 1.65 (d, J = 5.6Hz, 3H).
Compound 89: 4- (1- (benzoyloxy) ethoxycarbonyloxy) butanoic acid<chemistry num="251"><img file="JP6830671B2_D0253.tif" /></chemistry>
Pd / C (20 mg) was added to a mixture of EA (4 mL) containing 1-((4-benzyloxy-4-oxobutoxy) carbonyloxy) ethylbenzoate (200 mg, 518 μmol). Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated to give the title compound as a sticky oil (120 mg, 78%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The characterization of the title compound was performed using as a solvent, and the results are as follows: δ = 8.06 (d, J = 7.2Hz, 2H), 7.59 (t, J = 7.4Hz, 1H). ), 7.45 (t, J = 7.6Hz, 2H), 7.03 (q, J = 5.6Hz, 1H), 4.24 (t, J = 6.4Hz, 2H), 2.49 (t, J = 7.2Hz, 2H), 2.06-1.99 (m, 2H), 1.66 (d, J = 5.6Hz, 3H).
Example 1-90 Intermediate Compound 90': Benzyl 4- (3,10,10-trimethyl-5,8-dioxo-2,4,9-trioxa-7-azaundecane-1-oiloxy) butanoate<chemistry num="252"><img file="JP6830671B2_D0254.tif" /></chemistry>
Benzyl 4-((1-chloroethoxy) carbonyloxy) butanoate (450 mg, 1.5 mmol), 2- (tert-butoxycarbonylamino) acetic acid (524 mg, 3.0 mmol), NaI (449 mg, 3.0 mmol) and Et.<sub>3</sub>A solution of acetone (10 mL) containing N (182 mg, 1.8 mmol) was heated under reflux for 3 days. The reaction mixture was filtered and the filtrate was concentrated. The residue was purified by silica gel flash column using PE / EA = 10: 1-1: 1 to give the title compound as a colorless adhesive oil (390 mg, 59%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>The title compound was characterized using: δ = 7.39-7.31 (m, 5H), 6.80 (q, J = 5.6Hz, 1H), 5.12. (s, 2H), 4.97 (br.s., 1H), 4.21 (t, J = 6.2Hz, 2H), 4.03-3.84 (m, 2H), 2.48 (t, J = 7.4Hz, 2H), 2.06 -2.00 (m, 2H), 1.53 (d, J = 5.2Hz, 3H), 1.44 (s, 9H).
Intermediate Compound 90'': 2,2,9-trimethyl-4,7,11-trioxo-3,8,10,12-tetraoxa-5-azahexadecane-16-acid<chemistry num="253"><img file="JP6830671B2_D0255.tif" /></chemistry>
Pd / C (38 mg) benzyl 4- (3,10,10-trimethyl-5,8-dioxo-2,4,9-trioxa-7-azaundecane-1-oiloxy) butanoate (380 mg, 865 μmol) It was added to a mixture of EA (8 mL) containing. Reactant H<sub>2</sub>The mixture was stirred at 25 ° C for 16 hours under the atmosphere. The reaction mixture was then filtered and the filtrate was concentrated to give the title compound as a sticky oil (280 mg, 93%).<sup>1</sup>1 H NMR at 400 MHz, CDCl<sub>3</sub>Was used as a solvent to characterize the title compound, and the results are as follows: δ = 6.82 (q, J = 5.2Hz, 1H), 5.03 (br.s., 1H), 4.34-4.15 (m, 2H), 3.96 (d, J = 6.0Hz, 2H), 2.49 (t, J = 7.0Hz, 2H), 2.13-1.96 (m, 2H), 1.54 (d, J = 5.6Hz) , 3H), 1.45 (s, 9H).
Compound 90: 4- (1- (2-aminoacetoxy) ethoxycarbonyloxy) butanoic acid<chemistry num="254"><img file="JP6830671B2_D0256.tif" /></chemistry>
HCl / EA (5 mL, approx. 2 M) containing 2,2,9-trimethyl-4,7,11-trioxo-3,8,10,12-tetraoxa-5-azahexadecane-16-acid (280 mg, 802 μmol) The solution was stirred at 25 ° C for 16 hours. A precipitate was formed and filtered. The filtered cake was washed with EA (10 mL) and then dried in vacuo to give the title compound as a white solid in the form of an HCl salt (168 mg, 84%).<sup>1</sup>1 H NMR at 400MHz, D<sub>2</sub>When the title compound was characterized using O as a solvent, the results are as follows: δ = 6.81 (q, J = 5.6Hz, 1H), 4.22 (t, J = 6.0Hz, 2H), 3.94 (s, 2H), 2.44 (t, J = 7.2Hz, 2H), 1.98-1.92 (m, 2H), 1.52 (d, J = 5.2Hz, 3H).
Example 2: Metabolic stability assay of test compound<u style="single">Rat / human liver S9 fractional metabolic stability assay</u> Half-life of the compounds of the present disclosure in vitro using the protocol for the rat / human liver S9 fractional metabolic stability assay (T).<sub>1/2</sub>) And their release efficiency of converting prodrugs to GHB.
The following is a summary of studies for the S9 assay: 1) For the GHB release efficiency assay, a pooled male-female mixed liver S9 fraction (human or rat) was obtained from a commercial vendor (eg, Xenotech). Stored at -80 ° C before use. 2) Phosphate buffer, ultra-high purity H<sub>2</sub>O, MgCl<sub>2</sub>The master solution in the incubation plate containing the solution and the liver S9 fraction was made to maintain the S9 fraction at a final concentration of 1 mg / mL. The mixture was preheated in a 37 ° C water bath for 5 minutes. 3) Add 4 μL of 500 μM test compound solution to the master solution plate at the final concentration of 5 μM test compound. The reaction was initiated by the addition of 40 μL of 10 mM NADPH and carried out at 37 ° C. 4) 50 μL aliquots of the reaction solution were removed and placed in new plates at different time points including 0, 15, 30, 45 and 60 minutes and incubated in a 37 ° C water bath with shaking at 60 rpm. The reaction was stopped by adding 200 μL of a cold reaction termination solution (methanol containing an internal standard) at specified time points. The plate was centrifuged at 3220 g at 4 ° C for 40 minutes to precipitate the protein. 5) 100 μL of supernatant was transferred to a new plate. The supernatant was diluted with water according to LC / MS signal response and peak shape, mixed well and analyzed using LC / MS / MS for measurement of test compounds and GHB. After that, the half-life of the test compound in the S9 fraction (T)<sub>1/2</sub>) And their conversion efficiency to GHB. GHB release efficiency is calculated by dividing the detected amount of GHB by the total amount of GHB that can be released by the test compound. The data are shown in Table 1 below.<tables num="1"><img file="JP6830671B2_D0257.tif" /></tables>
An in vitro GHB release efficiency assay using the rat / human liver S9 fraction showed that prodrug compounds could be converted to GHB with variable release efficiency, which would allow them to be converted to GHB after administration to rats / humans. It was suggested that it is converted to GHB in the systemic circulation.
<u style="single">Rat / human hepatocyte metabolic stability assay</u>
Half-life of the compounds of the present disclosure in vitro (T) using a protocol for the rat / human hepatocyte metabolic stability assay.<sub>1/2</sub>) And their release efficiency of converting prodrugs to GHB.
The following is a summary of studies for the hepatocyte assay: 1) For the GHB release efficiency assay, male rat hepatocytes and mixed human hepatocytes were obtained from commercial vendors (eg, Bioreclamation IVT) and before use- Stored at 150 ° C. 2) A 30 mM stock solution of the test compound was prepared in DMSO. Thawed medium and supplemented incubation medium (serum-free) were placed in a 37 ° C water bath for at least 15 minutes prior to use. The stock solution was diluted to 500 μM by combining 295 μL acetonitrile and 5 μL 30 mM stock solution. 3) The cryopreserved hepatocyte vials were removed from storage to ensure that the vials were maintained at cryogenic temperatures. The pressure was relieved by loosening the cap and tightening again. The vial was thawed in a 37 ° C water bath with gentle shaking. The vial was maintained in a water bath until all ice crystals had melted and were no longer visible. Vials were sprayed with 70% ethanol before being transferred to the biosafety cabinet. The contents were then poured into a 50 mL thawed medium conical tube. Vials were centrifuged at 100 g for 10 minutes at room temperature. The thawed medium is aspirated and the hepatocytes are resuspended in serum-free incubation medium, approximately 1.5 x 10<sup>6</sup>Cells / mL were obtained. 4) Cell viability and density were counted using trypan blue exclusion, after which the cells were 1x10 in serum-free incubation medium.<sup>6</sup>Diluted to a practical cell density of viable cells / ml. 5) 1 × 10<sup>6</sup>A portion of live cells / mL hepatocytes was boiled as a negative control for 10 minutes prior to addition to the plate to remove enzyme activity with little or no substrate turnover observed. Negative samples were prepared using inactivated hepatocytes and used to eliminate misleading factors due to the instability of the chemicals themselves. 6) An aliquot of 247.5 μL hepatocytes was dispensed into each well of a 96-well uncoated plate. The plate was placed in an incubator on an orbital shaker at 500 rpm for approximately 10 minutes. 7) 2.5 μL aliquots of 500 μM test compound were added to the individual wells of the uncoated 96-well plate to initiate the reaction. This assay was performed in duplicate. The plates were incubated in an incubator on an orbital shaker at 500 rpm for the designed time period. 8) 25 μL of the content was transferred and mixed with 6 volumes (150 μL) of cold acetonitrile having an internal standard and the reaction was stopped at 0, 5, 15, 30, 60, 90 and 120 minutes. The sample was centrifuged for 25 minutes at 3220 g and a 100 μL aliquot of the supernatant was used for LC-MS / MS analysis for measurement of test compound and GHB. After that, the half-life of the test compound in hepatocytes (T)<sub>1/2</sub>) And their conversion efficiency to GHB. The data are shown in Table 2 below.<tables num="2"><img file="JP6830671B2_D0258.tif" /></tables>
In vitro GHB release efficiency assays using rat / human hepatocytes have shown that prodrug compounds can be converted to GHB with variable release efficiency, which allows them to be administered to rat / human during post-systemic circulation. It was suggested that it would be converted to GHB.
<u style="single">Rat / human whole blood metabolic stability assay</u> The protocol for the rat / human whole blood metabolic stability assay is used to determine the release efficiency of the compounds of the present disclosure that convert prodrugs to GHB in vitro.
The following is a summary of studies for the whole blood assay: 1) For the GHB release efficiency assay, male and female mixed rat whole blood from commercial vendors (eg SiBeiFu (Beijing) Laboratory Animal Science and Technology Co. Obtained from Ltd., whole human blood was obtained from healthy mixed-sex volunteers and stored at 4 ° C before use. 2) Stock solutions of test compounds were prepared in DMSO and diluted to a final concentration of 500 μM. 3) 5 μL of 500 μM working solution was added to 495 μL whole blood to reach a final concentration of 5 μM. The final concentration of the organic solvent was 1%. The assay was performed in duplicate. Reaction samples were incubated in a water bath at 37 ° C. at approximately 60 rpm. 4) 50 μL aliquots were removed from the reaction sample in 0, 15, 30, 45, 60 and 120 minutes. The reaction was stopped by the addition of 7 volumes of cold methanol containing an internal standard. 5) All samples were vortexed for 10 minutes and then centrifuged at 3220 g for 30 minutes to precipitate the protein. 100 μL of supernatant was transferred to a new plate. The supernatant was diluted with ultra-purity water according to LC-MS signal response and peak shape. Samples were analyzed using LC / MS / MS for measurement of test compounds and GHB. The measurement results were then used to calculate the efficiency of conversion of test compounds to GHB in whole blood. The data are shown in Table 3 below.<tables num="3"><img file="JP6830671B2_D0259.tif" /></tables>
In vitro GHB release efficiency assays using whole rat / human blood have shown that prodrug compounds can be converted to GHB with variable release efficiency, which allows them to be administered to rats / humans during post-systemic circulation. It was suggested that it would be converted to GHB.
Example 3: Pharmacokinetic study In the rat pharmacokinetic study, male Sprague-Dawley rats were individually housed and fasted overnight prior to use. Animal administration experiments were conducted in accordance with the National Institutes of Health Guidelines for Animal Care and Use and the Animal Welfare Act. For GHB sodium salt, a single dose of 50 mg / kg was administered to each rat in the two groups (n = 3 / group) by intravenous (IV) and oral (PO) administration, respectively. The vehicle used for GHB sodium salt is saline. For other test compounds, a single dose of each test compound was orally administered to each rat (n = 3 / group). The dosage of each test compound is listed in Table 4. The vehicle used to administer the test compound was saline containing 0.5% (w / v) sodium carboxylmethyl cellulose (CMC-Na). Blood samples were collected at specific time points (before dosing, 10 minutes, 0.5 hours, 1 hour, 2 hours, 4 hours, 6 hours) after administration to individual rats in the IV and PO groups. Blood samples were immediately coagulated on ice and plasma samples were then isolated by centrifugation and cryopreserved for further analysis (-80 ° C). Concentrations of GHB and all other test compounds were determined individually by LC / MS / MS assay. Various pharmacokinetic parameters were calculated using Phoenix® WinNonlin® software. Relative bioavailability of GHB sodium salt after PO administration was calculated to quantify the bioconversion efficiency of test compounds in the circulatory system. Relative bioavailability values were expressed as the ratio of AUC to GHB sodium salt administered only with IV adjusted by the AUC vs. dose of GHB converted from the test compound. The data are shown in Table 4 below.<tables num="4"><img file="JP6830671B2_D0260.tif" /></tables>
In the canine pharmacokinetic study, male beagle dogs were individually housed. Dogs in the oral group were fasted overnight prior to use, but had free access to the water supply. Dogs in Group IV have free access to food and water. Animal administration experiments were conducted in accordance with the National Institutes of Health Guidelines for Animal Care and Use and the Animal Welfare Act. For GHB sodium salt, a single dose of 20 mg / kg was administered intravenously (IV) to each dog in the two groups (n = 3 / group). The vehicle used for GHB sodium salt is saline. For other test compounds, a single dose of each test compound was orally administered to each dog (n = 3 / group). The dosage of each test compound is listed in Table 5. The vehicle used to administer the test compound was saline containing 0.5% (w / v) sodium carboxylmethyl cellulose (CMC-Na). Blood samples were administered to individual dogs in the IV and PO groups at specific time points (before administration, 5 minutes, 10 minutes, 20 minutes, 30 minutes, 45 minutes, 1 hour, 2 hours, 3 hours, Collected (4 hours after administration). Blood samples were immediately coagulated on ice and plasma samples were then isolated by centrifugation and cryopreserved for further analysis (-80 ° C). Concentrations of GHB and all other test compounds were determined individually by LC / MS / MS assay. Various pharmacokinetic parameters were calculated using Phoenix® WinNonlin® software. The bioavailability of GHB sodium salt after PO administration was calculated to quantify the bioconversion efficiency of the test compounds in the circulatory system. The data are shown in Table 5 below.<tables num="5"><img file="JP6830671B2_D0261.tif" /></tables>
Example 4: Colon Absorption The purpose of the colonic absorption test in rats is to evaluate the effect of the improved transport properties of the prodrug on the obtained pharmacokinetics and distribution of GHB. The study should be performed according to the following general procedure: GHB and the compounds of the invention are each administered to a group of 3-7 male rats by bolus injection directly into the colon via an indwelling cannula. After administration, blood samples are obtained at intervals for 24 hours and processed immediately to obtain plasma at 4 ° C. Concentrations of GHB and all other test compounds are individually determined by HPLC-MS / MS assay. The compounds of the present disclosure exhibit more effective colonic absorption than GHB.
Although this disclosure has been specifically shown and described with reference to specific embodiments, some of which are preferred embodiments, various changes in embodiments and details are disclosed herein. It should be understood by those skilled in the art that it is possible within it without departing from the spirit and scope of this disclosure.
271 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7 Sheet 8 Sheet 9 Sheet 10 Sheet 11 Sheet 12 Sheet 13 Sheet 14 Sheet 15 Sheet 16 Sheet 17 Sheet 18 Sheet 19 Sheet 20 Sheet 21 Sheet 22 Sheet 23 Sheet 24 Sheet 25 Sheet 26 Sheet 27 Sheet 28 Sheet 29 Sheet 30 Sheet 31 Sheet 32 Sheet 33 Sheet 34 Sheet 35 Sheet 36 Sheet 37 Sheet 38 Sheet 39 Sheet 40 Sheet 41 Sheet 42 Sheet 43 Sheet 44 Sheet 45 Sheet 46 Sheet 47 Sheet 48 Sheet 49 Sheet 50 Sheet 51 Sheet 52 Sheet 53 Sheet 54 Sheet 55 Sheet 56 Sheet 57 Sheet 58 Sheet 59 Sheet 60 Sheet 61 Sheet 62 Sheet 63 Sheet 64 Sheet 65 Sheet 66 Sheet 67 Sheet 68 Sheet 69 Sheet 70 Sheet 71 Sheet 72 Sheet 73 Sheet 74 Sheet 75 Sheet 76 Sheet 77 Sheet 78 Sheet 79 Sheet 80 Sheet 81 Sheet 82 Sheet 83 Sheet 84 Sheet 85 Sheet 86 Sheet 87 Sheet 88 Sheet 89 Sheet 90 Sheet 91 Sheet 92 Sheet 93 Sheet 94 Sheet 95 Sheet 96 Sheet 97 Sheet 98 Sheet 99 Sheet 100 Sheet 101 Sheet 102 Sheet 103 Sheet 104 Sheet 105 Sheet 106 Sheet 107 Sheet 108 Sheet 109 Sheet 110 Sheet 111 Sheet 112 Sheet 113 Sheet 114 Sheet 115 Sheet 116 Sheet 117 Sheet 118 Sheet 119 Sheet 120 Sheet 121 Sheet 122 Sheet 123 Sheet 124 Sheet 125 Sheet 126 Sheet 127 Sheet 128 Sheet 129 Sheet 130 Sheet 131 Sheet 132 Sheet 133 Sheet 134 Sheet 135 Sheet 136 Sheet 137 Sheet 138 Sheet 139 Sheet 140 Sheet 141 Sheet 142 Sheet 143 Sheet 144 Sheet 145 Sheet 146 Sheet 147 Sheet 148 Sheet 149 Sheet 150 Sheet 151 Sheet 152 Sheet 153 Sheet 154 Sheet 155 Sheet 156 Sheet 157 Sheet 158 Sheet 159 Sheet 160 Sheet 161 Sheet 162 Sheet 163 Sheet 164 Sheet 165 Sheet 166 Sheet 167 Sheet 168 Sheet 169 Sheet 170 Sheet 171 Sheet 172 Sheet 173 Sheet 174 Sheet 175 Sheet 176 Sheet 177 Sheet 178 Sheet 179 Sheet 180 Sheet 181 Sheet 182 Sheet 183 Sheet 184 Sheet 185 Sheet 186 Sheet 187 Sheet 188 Sheet 189 Sheet 190 Sheet 191 Sheet 192 Sheet 193 Sheet 194 Sheet 195 Sheet 196 Sheet 197 Sheet 198 Sheet 199 Sheet 200 Sheet 201 Sheet 202 Sheet 203 Sheet 204 Sheet 205 Sheet 206 Sheet 207 Sheet 208 Sheet 209 Sheet 210 Sheet 211 Sheet 212 Sheet 213 Sheet 214 Sheet 215 Sheet 216 Sheet 217 Sheet 218 Sheet 219 Sheet 220 Sheet 221 Sheet 222 Sheet 223 Sheet 224 Sheet 225 Sheet 226 Sheet 227 Sheet 228 Sheet 229 Sheet 230 Sheet 231 Sheet 232 Sheet 233 Sheet 234 Sheet 235 Sheet 236 Sheet 237 Sheet 238 Sheet 239 Sheet 240 Sheet 241 Sheet 242 Sheet 243 Sheet 244 Sheet 245 Sheet 246 Sheet 247 Sheet 248 Sheet 249 Sheet 250 Sheet 251 Sheet 252 Sheet 253 Sheet 254 Sheet 255 Sheet 256 Sheet 257 Sheet 258 Sheet 259 Sheet 260 Sheet 261 Sheet 262 Sheet 263 Sheet 264 Sheet 265 Sheet 266 Sheet 267 Sheet 268 Sheet 269 Sheet 270 Sheet 271
Every citation, both waysCites: the store holds 9 of 10
| Document | Relation | Office | Cited during |
|---|---|---|---|
| US11602512B1 | Cited by | United States of America | Applicant |
| US12115142B2 | Cited by | United States of America | Applicant |
| US12478604B1 | Cited by | United States of America | Applicant |
| US12097176B2 | Cited by | United States of America | Applicant |
| US12226389B2 | Cited by | United States of America | Applicant |
| US12186298B2 | Cited by | United States of America | Applicant |
| US12303478B2 | Cited by | United States of America | Applicant |
| US11602513B1 | Cited by | United States of America | Applicant |
| US12115145B2 | Cited by | United States of America | Applicant |
| US12295926B1 | Cited by | United States of America | Applicant |
| US11766418B2 | Cited by | United States of America | Applicant |
| US12144793B2 | Cited by | United States of America | Applicant |
| US12226377B2 | Cited by | United States of America | Applicant |
| US12097175B2 | Cited by | United States of America | Applicant |
| US11896572B2 | Cited by | United States of America | Applicant |
| US12115143B2 | Cited by | United States of America | Applicant |
| US11986451B1 | Cited by | United States of America | Applicant |
| US12263151B2 | Cited by | United States of America | Applicant |
| US12167991B2 | Cited by | United States of America | Applicant |
| US11826335B2 | Cited by | United States of America | Applicant |
| US12167992B2 | Cited by | United States of America | Applicant |
| US11400065B2 | Cited by | United States of America | Applicant |
| US12186296B1 | Cited by | United States of America | Applicant |
| US12128021B1 | Cited by | United States of America | Applicant |
| US12263150B2 | Cited by | United States of America | Applicant |
| US12138239B2 | Cited by | United States of America | Applicant |
| US11779557B1 | Cited by | United States of America | Applicant |
| US11583510B1 | Cited by | United States of America | Applicant |
| US12239625B2 | Cited by | United States of America | Applicant |
| US11839597B2 | Cited by | United States of America | Applicant |
| US12109186B2 | Cited by | United States of America | Applicant |
| US12226388B2 | Cited by | United States of America | Applicant |
| US12257223B2 | Cited by | United States of America | Applicant |
| US12115144B2 | Cited by | United States of America | Applicant |
| US11504347B1 | Cited by | United States of America | Applicant |
| JP2002503673A | Cites | Japan | – |
| WO2014031840A1 | Cites | World Intellectual Property Organization (WIPO) | – |
| JP2014513046A | Cites | Japan | – |
| WO2010124046A1 | Cites | World Intellectual Property Organization (WIPO) | – |
| JP62270552A | Cites | Japan | – |
| JP2002510698A | Cites | Japan | – |
| JP2011523404A | Cites | Japan | – |
| JP2003522198A | Cites | Japan | – |
| WO2015083129A1 | Cites | World Intellectual Property Organization (WIPO) | – |
| Database REGISTRY,1990年,RN 128321-03-9,Retrieved from STN international [online] ;retrieved on 05 August 2020 | Non-patent | – | – |
38 members in 11 offices
Priority claims15
| Document | Office | Kind | Date |
|---|---|---|---|
| 2015090326 | China | W | |
| 2015090326 | China | W | |
| PCTCN2015090326 | China | – | |
| 201610782104 | China | A | |
| 201610782104 | China | A | |
| 2016107821041 | China | – | |
| 2016099763 | China | W | |
| 2016099763 | China | W | |
| 2016107821041 | – | – | – |
| CN2016099763 | – | – | – |
| CN201610782104 | – | – | – |
| CN20161782104 | – | – | – |
| PCTCN2015090326 | – | – | – |
| WO2015CN90326 | – | – | – |
| WO2016CN99763 | – | – | – |
Members38
| Document | Office | Kind | |
|---|---|---|---|
| CA2999367A1 | Canada | A1 | |
| CA3207643A1 | Canada | A1 | |
| WO2017049470A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO2017050259A1 | World Intellectual Property Organization (WIPO) | A1 | |
| TW201718456A | Taiwan Province of China | A | |
| AU2016328150A1 | Australia | A1 | |
| KR20180058738A | Republic of Korea | A | |
| CN108283000A | China | A | |
| EP3353145A1 | European Patent Office (EPO) | A1 | |
| JP2018532771A | Japan | A | |
| US2019194120A1 | United States of America | A1 | |
| US2019218168A1 | United States of America | A1 | |
| EP3353145A4 | European Patent Office (EPO) | A4 | |
| US10457627B2 | United States of America | B2 | |
| HK1257965A | Hong Kong, China | A | |
| HK1257965A1 | Hong Kong, China | A1 | |
| US10501401B2 | United States of America | B2 | |
| US2020039917A1 | United States of America | A1 | |
| US10640451B2 | United States of America | B2 | |
| US2020223783A1 | United States of America | A1 | |
| US10774031B2 | United States of America | B2 | |
| AU2016328150B2 | Australia | B2 | |
| US2020369598A1 | United States of America | A1 | |
| US2020369599A1 | United States of America | A1 | |
| TWI716458B | Taiwan Province of China | B | |
| JP6830671B2This record | Japan | B2 | |
| US10941107B2 | United States of America | B2 | |
| JP6830671B6 | Japan | B6 | |
| CN108283000B | China | B | |
| US2021130281A1 | United States of America | A1 | |
| JP2021073214A | Japan | A | |
| CN113061089A | China | A | |
| KR102279993B1 | Republic of Korea | B1 | |
| EP3353145B1 | European Patent Office (EPO) | B1 | |
| ES2930848T3 | Spain | T3 | |
| EP4119539A1 | European Patent Office (EPO) | A1 | |
| JP2023011677A | Japan | A | |
| CA2999367C | Canada | C |
16 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Written measure of declining of transfer procedureJAPANESE INTERMEDIATE CODE: R370R370 | R370 | |
| Written notification for declining of transfer of rightsJAPANESE INTERMEDIATE CODE: R360R360 | R360 | |
| Written request for registration of reclamation of nameJAPANESE INTERMEDIATE CODE: R313633S633 | S633 | |
| Certificate of patent or registration of utility modelJAPANESE INTERMEDIATE CODE: R150R150 | R150 | |
| First payment of annual fees (during grant procedure)JAPANESE INTERMEDIATE CODE: A61A61 | A61 | |
| Written decision to grant a patent or to grant a registration (utility model)JAPANESE INTERMEDIATE CODE: A01A01 | A01 | |
| Decision of grant or rejection writtenTRDD | TRDD | |
| Request for written amendment filedJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Report on retrievalJAPANESE INTERMEDIATE CODE: A971007A977 | A977 | |
| Request for written amendment filedJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written request for application examinationJAPANESE INTERMEDIATE CODE: A621A621 | A621 | |
| Request for written amendment filedJAPANESE INTERMEDIATE CODE: A523A521 | A521 |
Numbers
- Publication
- 6830671
- Publication, DOCDB
- 6830671
- Publication, EPODOC
- JP6830671B
- Application
- 2018533996
- Application, DOCDB
- 2018533996
- Application, EPODOC
- JP20180533996
Titles2
- Japanese
- γ-ヒドロキシ酪酸(GHB)のプロドラッグ、その組成物および使用
- English
- Prodrug of γ-hydroxybutyric acid (GHB), its composition and use
Classification
- CPC, 56
- C07C69/76
- A61P21/00
- C07C69/78
- C07C69/92
- C07C69/618
- C07C69/612
- C07C69/24
- C07C69/75
- C07C69/74
- C07C69/67
- C07C69/96
- C07C229/36
- C07C229/08
- C07C233/47
- C07C317/44
- C07C271/22
- C07C271/34
- C07D211/46
- C07D213/80
- C07D207/28
- C07D213/79
- C07D277/56
- C07D207/16
- C07D307/68
- C07D333/38
- C07D317/64
- C07D309/12
- A61P25/00
- A61P25/20
- A61P25/28
- A61P25/18
- A61P25/16
- A61P25/14
- A61P25/32
- A61P25/30
- C07C2601/14
- C07C2601/08
- C07B59/001
- C07C255/57
- C07C69/28
- C07C69/608
- C07C69/738
- C07C2601/06
- C07D207/12
- C07D211/44
- C07D277/30
- A61P25/02
- A61P29/00
- Y02P20/55
- A61K31/19
- A61K31/44
- C07C2601/16
- C07C69/22
- C07C69/34
- C07C229/34
- C07C317/14
- IPC, 6
- C07C229 08
- A61K31 223
- A61P25 00
- A61P25 16
- A61P25 18
- A61P25 28
