Benzophenone oxime derivatives, pharmaceutical compositions and use
Abstract
A new diphenyl-methane derivative is useful to inhibit agglomeration of blood and is defined by the formula, including a diphenylethylene derivative and a benzophenone oxime ether derivative. in which R1 and R2 each are hydrogen, hydroxyl or a lower alkoxy, U is =CXY or =N-O-W, X is hydrogen, cyano or -COR6, R6 being hydroxyl or an amino, Y is -R10-COOR3, R3 being hydrogen or a lower alkoxy, R10 being an alkylene having 1 to 3 carbon atoms, straight or branched, -CO-NR4R5, R4 and R5 each being hydrogen, a lower alkyl or a lower arylalkyl, -CH2-NHSO2-C6H5 or -C(R8)=NR7, R7 being a lower alkoxy or an aryl, R8 is -VR9, V being oxygen, sulfur or nitrogen, R9 being an alkyl or an aryl, W is -CH2-CO-CH2-C00R13, R13 being hydrogen or a lower alkyl, -CH2-C(=NOR14)-CH2-COOR15, R15 being hydrogen or a lower alkyl, R14 being a lower --> alkyl, -CH(CN)-(CH2)q-COOR16, R16 being hydrogen or a lower alkyl, q being an integer of 1 to 3, or -(CH2)p-Z, Z being -SH, -SCN or a monovalent group derived from a five- or six-membered ring which may be substituted by a ring having one or more sulfur atoms in the ring, p being 1 or 2. A pharmaceutical composition containing compounds of formula (XX) or their pharmaceutically acceptable salts as active ingredients, and the use of compounds of formula (XX) or their pharmaceutically acceptable salts in the preparation of a medicament for treatment of diseases caused by blood stream disorders are also disclosed.

Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
1 claim: 1 independent, 0 dependent
- 1PATENTKRAV:1. Analogifremgangsmåte for fremstilling av terapeutisk aktive difenyletylenforbindelser med generell formel (i) X Y hvori Rl og R^ hver er hydrogen, hydroksyl eller lavere alkoksy, X er hydrogen, cyano eller -COR 8 hvori R 8 er hydroksyl eller amino, Y er -R 18 COOR 3 hvori R 3 er hydrogen eller lavere alkoksy og R 10 er rettkjedet eller forgrenet C1-C3 alkylen, -CO-NR 4 R 5 hvori R 4 og R 5 hver er hydrogen, lavere alkyl eller fenyl-lavere alkyl, -CH 2 -NHSO 2 -C 6 H 5 eller -C(R 8 )=NR 7 hvori R 7 er lavere alkoksy eller fenyl, R 8 er -VR 9 hvori V er oksygen, svovel eller nitrogen, idet R 9 er alkyl eller fenyl, eller farmakologisk tålbare salter derav, med unntagelse av forbindelsene (p-MeOCgH^j) 2 C=CHMeC00H, 4-[3,3-bis(p-metoksyfenyl)akrylamido]-benzosyreetylester, 4-(3,3-difenylakrylamido)benzosyre, a-cyano-β,β-difenylakrylsyreamid og a-cyano-β.p-difenylakrylsyre-N,N-dimetylamid, karakterisert ved at a) for fremstilling av en amidforbindelse (I) hvori R 1 , R 2 og X har den ovennevnte betydning og Y står for en gruppe -C-N R 8 hvori R 4 og R 5 har den ovennevnte betydning, omsettes en karboksylsyre med den generelle formel (II) (II) hvori R^·, R 2 og X har den ovennevnte betydning, eller et reaktivt syrederivat derav, med et amin med formel X “v R = hvori R 4 og R 5 har den ovennevnte betydning, eller b) for fremstilling av en sulfonamidforbindelse (I) hvori R 1 , R 2 og X har den ovennevnte betydning, omsettes et amin med formel IV X—C—CH a -NH, (IV) hvori R 1 , R 2 og X har den ovennevnte betydning, med et sulfonylhalogenid med formel (V) hvori Hal står for et halogenatom, eller (V) c) for fremstilling av en esterforbindelse (I) hvori R 2 , R 3 og R 10 har den ovennevnte betydning, og X står .. for cyano, omsettes et keton med formel (VI) (VI) hvori R 1 og R 2 har den ovennevnte betydning, med et halogenid (VII) Hal H — C — R 10 -- COOR 3 (VII) I CN hvori Hal står for et halogenatom og R 3 og R 10 har den ovennevnte betydning, i nærvær av sink, hvoretter den ' ved Reformatskyreaksjonen erholdte hydroksyforbindelse (VIII) hvori R 3 ·, R 2 , R 3 og R^-θ har den ovennevnte betydning, dehydratiseres, eller d) for fremstilling av en iminoforbindelse (I) hvori R 1 , R 2 og X har den tidligere angitte betydning og Y står for -C(R 8 )=nr 7 hvori R 8 og R 7 har den tidligere angitte betydning, omsettes enten en forbindelse (I) hvori Y står for -CONHR 7 og r!, R 2 og X har den tidligere angitte betydning, enten (A) med en forbindelse med formel HVR 9 hvori V og R 9 har den tidligere angitte betydning ved . hjelp av et halogenerende middel som fosforoksyklorid, fosforpentaklorid eller tionylklorid, til å gi amidforbindelsen (I) hvori Y er -C(VR 9 )=NR 7 hvori R 7 og VR 9 har den tidligere angitte betydning, eller (B) med et sulfiderende middel som fosforpentasulfid til å gi tioamidforbindelsen (I) hvori Y er -C(=S)-NHR 7 hvori har den tidligere angitte betydning, som omsettes med et halogenid R 9 -Hal hvori Hal står for et halogen og R 9 har den ovennevnte betydning, eller e) for fremstilling av en iminoforbindelse (I) hvori R 1 , R 2 og X har den tidligere angitte betydning og Y er -C(VR 9 )=NR 7 hvori v har den tidligere angitte betydning, R 9 er alkyl og R 7 er lavere alkoksy, omsettes en forbindelse (I) hvori R 1 , R 2 og X har den tidligere angitte betydning og Y er -CO-VR 9 hvori VR 9 har den tidligere angitte betydning, med et amin H2N-R 7 hvori R 7 har den ovennevnte betydning, idet et erholdt syrederivat, hvori R 3 er hydrogen, om ønsket 'omdannes til et farmakologisk tålbart salt.
210 paragraphs in 20 sections, as filed
(74) Agent
Eisai Co Ltd, 6-10, Koishikawa 4-chome, Bunkyo-ku, Tokyo, JP Youji Yamagishi, Niihari-gun, Ibaraki, JP Kozo Akasaka, Ushiku-shi, Ibaraki, JP Takeshi Suzuki, Ushiku-shi, Ibaraki, JP Mitsuaki Miyamoto, Niihari-gun, Ibaraki, JP Kouji Nakamoto, Tsuchiura-shi, Ibaraki, JP Kazuo Okano, Tsukuba-gun, Ibaraki, JP Shinya Abe, Ushiku-shi, Ibaraki, JP Hironori Ikuta, Ushiku-shi, Ibaraki, JP Kenji Hayashi, Tsukuba-gun, Ibaraki, JP Hiroyuki Yoshimura, Tsukuba-gun, Ibaraki, JP Tohni Fujimori, Tsukuba-gun, Ibaraki, JP Koukichi Harada, Tsukuba-gun, Ibaraki, JP Isao Yamatsu, Ushiku-shi, Ibaraki, JP JK Thorsens Patentbureau AS, Oslo (54) Designation
<td>(56) Cited publications</td><td>European (EP) patent application, publ. No. 120321, 124791, BRD (DE) off. U.S. Patent No. 1443929, British (GB) Patent No. 999613, 1257266, Swiss (CH) Patent No. 455767, CA 77: 10OOlw, CA 78: 124159p</td>
(57) Summary
Diphenylmethane derivatives in the form of diphenylethylene derivatives or benzophenone oximeter derivatives of formula
<img file="NO168577B_D0001.tif" />
(XX)
2 and pharmaceutically countable salts thereof, wherein R and R are each hydrogen, hydroxyl or a lower alkoxy, U is = CXY or -NOW wherein X is hydrogen, cyano or -COR<sup>6</sup>, where R<sup>6</sup> is hydroxyl or amino, Y is -R<sup>10</sup>COOR<sup>3</sup> wherein R<sup>3 </sup>is hydrogen or lower alkoxy, wherein R 2 is straight or branched alkylene having one to three carbon atoms,
S 4 S
-CO-NR R, R and R are hydrogen, lower alkyl or lower arylalkyl, -CH, -NHSO, -C, H, or -C (R<sup>B</sup>) "REF<sup>7</sup>
ZZO □ Λ A wherein R is lower alkoxy or aryl, R is -VR wherein
V is oxygen, sulfur or nitrogen, R is alkyl or aryl, W is -CH 2 -CO-CH 2 -COOR<sup>13</sup>, wherein R<sup>13</sup> is hydrogen or lower alkyl, -CH, -C (= NOR<sup>14</sup>) -CH, -COOR<sup>15</sup>, in which <sup>i Z</sup> 14
R is hydrogen or lower alkyl, with R being lower alkyl, -CH (CN) - (CH<sub>2</sub>)<sub>(j</sub>COOR<sup>16</sup>, wherein R<sup>16</sup> is hydrogen or lower alkyl, with q being an integer 1 to 3, or - (CH 2 Jp-Z wherein Z is -SH, -SCN or a monovalent group derived from a five- or six-membered ring which may be substituted by a ring having one or more sulfur atoms in the ring, p being 1 or 2. The compounds have platelet agglomeration-inhibiting effect.
The present invention relates to an analogous process for the preparation of therapeutically active diphenylethylene compounds of general formula (I)
<img file="NO168577B_D0002.tif" />
<img file="NO168577B_D0003.tif" />
(IN)
<img file="NO168577B_D0004.tif" />
<img file="NO168577B_D0005.tif" />
wherein
R<sup>1</sup> and R<sup>2</sup> each is hydrogen, hydroxyl or lower alkoxy,
X is hydrogen, cyano or -COR<sup>8</sup> wherein R<sup>8</sup> is hydroxyl or amino,
Y is -R<sup>10</sup>COOR<sup>3</sup> wherein R<sup>3</sup> is hydrogen or lower alkoxy and R<sup>10</sup> is straight-chain or branched C1-C3 alkylene, -CO-NR<sup>4</sup>R<sup>8</sup> wherein R<sup>4</sup> and R<sup>8</sup> each is hydrogen, lower alkyl or phenyl-lower alkyl, -CH 2 -NHSO 2 -C 6 H 5 or -C (R<sup>8</sup>) = NR<sup>7</sup> wherein R<sup>7</sup> is lower alkoxy or phenyl, R<sup>8</sup> is -VR<sup>9</sup> wherein V is oxygen, sulfur or nitrogen, wherein R<sup>9 </sup>is alkyl or phenyl, or pharmacologically tolerable salts thereof, with the exception of the compounds (p-MeOCgH 2 C = CHMeCOOH, 4- [3,3-bis (p-methoxyphenyl) acrylamido] benzoic acid ethyl ester,
4- (3,3-diphenylacrylamido) benzoic acid, α-cyano-β, β-diphenylacrylic acid amide and α-cyano-β.B-diphenylacrylic acid N, N-dimethylamide, and the invention is characterized in that
a) for the preparation of an amide compound (I) wherein R<sup>1</sup>, R<sup>2 </sup>and X has the above meaning and Y represents a group
II
CN
<img file="NO168577B_D0006.tif" />
<img file="NO168577B_D0007.tif" />
wherein R<sup>4</sup> and R<sup>5</sup> has the above meaning, a carboxylic acid of the general formula (II) is reacted
<img file="NO168577B_D0008.tif" />
II c ^ CCOH wherein R<sup>1</sup>, R<sup>2</sup> and X represents the above meaning, or a reactive acid derivative thereof, with an amine of formula
<img file="NO168577B_D0009.tif" />
wherein R<sup>4</sup> and R 1 has the above meaning, or
b) for the preparation of a sulfonamide compound (I) wherein R1, R1<sup>2</sup> and X has the above meaning, an amine of formula IV is reacted
<img file="NO168577B_D0010.tif" />
wherein R<sup>1</sup>, R<sup>2</sup> and; X has the above meaning, with a sulfonyl halide of formula (V)
<img file="NO168577B_D0011.tif" />
(V) wherein Hal represents a halogen atom, or
c) for the preparation of an ester compound (I) wherein R<sup>1</sup>, R<sup>2</sup>, R<sup>3</sup> and R<sup>10</sup> has the above meaning and X stands for cyano, a ketone of formula (VI) is reacted
<img file="NO168577B_D0012.tif" />
(VI) wherein and R<sup>2</sup> has the above meaning, with a halide (VII)
Hal
H - C - R<sup>10</sup> - COOR<sup>3</sup>
IN
CN (VII) and R<sup>1</sup>^ has it after which the one in which Hal represents a halogen atom and R<sup>3 </sup>the above-mentioned significance, in the presence of zinc, of the hydroxy compound obtained by the Reformatsky reaction
R '
<img file="NO168577B_D0013.tif" />
<img file="NO168577B_D0014.tif" />
(VIII) wherein R1 is dehydrated, or has the above meaning,
d) for the preparation of an imino compound (I) wherein R<sup>1</sup>, R<sup>2 </sup>and X has the meaning given previously and Y stands for -C (r8) = Nr7 wherein R® and R<sup>7</sup> has the meaning previously defined, either compound (I) wherein Y stands for -CONHR<sup>7</sup> and R<sup>1</sup>, R<sup>2</sup> and X is as previously defined, either (A) having a compound of formula HVR<sup>9 </sup>wherein V and R<sup>9</sup> has the aforementioned meaning by a halogenating agent such as phosphorus oxychloride, phosphorus pentachloride or thionyl chloride, to give the amide compound (I) wherein Y is -C (VR<sup>9</sup>) = NR<sup>7</sup> wherein R<sup>7</sup> and VR<sup>9</sup> has the aforementioned meaning, or (B) with a sulfiding agent such as phosphorus pentasulfide to give the thioamide compound (I) wherein Y is -C (= S) -NHR<sup>7</sup> wherein R<sup>7 </sup>has the aforementioned meaning, which is reacted with a halide R<sup>9</sup>-Hal where Hal represents a halogen and R<sup>9</sup> has the above meaning, or
e) for the preparation of an imino compound (I) wherein R *, R<sup>2 </sup>and X has the meaning previously defined and Y is -C (VR<sup>9</sup>) = NR<sup>7</sup> wherein V has the meaning previously defined, R<sup>9</sup> is alkyl and R<sup>7</sup> is lower alkoxy, a compound (I) wherein R<sup>1</sup>, R<sup>2</sup> and X has the meaning previously defined and Y is -CO-VR<sup>9</sup> wherein VR<sup>9</sup> has the aforementioned meaning, with an amine H2N-R<sup>7</sup> wherein R<sup>7</sup> has the aforementioned meaning, wherein an acid derivative obtained wherein R 3 is hydrogen is converted into a pharmacologically tolerable salt if desired.
The most serious diseases for mankind today include acute vascular diseases such as myocardial infarction, cerebral apoplexy, cerebral thrombosis, cerebral infarction, pulmonary embolus, deep phlebotrombosis and peripheral arterio thrombosis.
Attention has recently been paid to anti-platelet agents and these have been used clinically to treat these diseases, but their use has only recently been proposed for this purpose and it is thus expected that the future will bring further development in the field.
The compounds prepared can be combined in the form of preparations containing a pharmacologically effective amount of the diphenylethylene derivative as defined above or a pharmacologically tolerable salt thereof, and a pharmacologically tolerable carrier, optionally with commonly used adjuvants.
The invention enables the treatment of diseases caused by disorders of the blood stream.
In the above definitions, a lower alkyl group includes straight or branched chain alkyl groups containing one to six carbon atoms, such as methyl, ethyl, n-propyl, nbutyl, isopropyl, isobutyl, 1-methylpropyl, tert-butyl, n-pentyl, 1-ethylpropyl , isoamyl and n-hexyl. An alkoxy group includes any lower alkoxy groups derived from the lower alkyl groups mentioned above. Among these groups, the methyl and ethyl groups are the most preferred lower alkyl groups, while a methoxy group is the most advantageous lower alkoxy group.
A phenyl-lower alkyl group includes e.g. benzyl.
Pharmaceutically acceptable salts of the compounds of the invention wherein R<sup>3</sup> is a hydrogen atom including metal salts such as Na, K, Ca and Mg salts.
Manufacturing Methods.
Various methods can be used to prepare the compound (I) and typical examples are as follows:
a) The intended compound of formula (I) wherein Y is a group of formula
R<sup>4</sup> il <sub>A c</sub>
-CN (wherein R<sup>4</sup> and R<sup>5</sup> is equal or
R5 is different and each represents a hydrogen atom or a lower alkyl or phenyl-lower alkyl group), can be prepared by a carboxylic acid of the general formula (II)
R
<img file="NO168577B_D0015.tif" />
C ^COOH wherein R<sup>2</sup>, R<sup>2</sup> and x has the above meaning, or a reactive acid derivative thereof, is converted to an amide by reaction with an amine of the general formula
HN (III) wherein R<sup>4</sup> and R 1 has the above meaning.
For example, a reactive acid derivative of the compound (III) includes a halide, anhydride or a mixture of acid anhydrides of the compound (II). This reaction can be carried out in the presence of one or more dehydrating agents such as Ν, Ν '= dicyclohexylcarbodiimide, N.N'-diethylcarbodiimide, trialkylphosphates, polyphosphate or tosyl chloride, if necessary.
When a halide is used as a reactive derivative, one or more bases may be added to the reaction mixture to bind the hydrogen halide formed during the reaction so that the reaction is accelerated. Examples of bases are inorganic salts such as potassium hydroxide, sodium hydroxide, potassium carbonate and sodium carbonate, and tertiary amines such as pyridine and triethylamine.
This reaction can usually be carried out in a solvent.
Any solvent can be used as long as it does not show any detrimental effect on the reaction.
Examples of such a solvent are dimethyl sulfoxide, tetrahydrofuran, dioxane, ethanol and mixtures thereof.
The reaction can usually be carried out at a temperature of -50 to 200 ° C unless otherwise indicated. After completion of the reaction, the intended compound can be isolated by conventional methods.
b) The sulfonamide compound of formula (I) wherein Y is a group of formula -CH2-NHSO2-. may be prepared by an amine of the general formula (IV)
<img file="NO168577B_D0016.tif" />
(IV) wherein R<sup>1</sup>, R<sup>2</sup> and X is as defined above, reacted with a sulfonyl halide of the general formula (V)
Hall - S0<sub>2</sub>
<img file="NO168577B_D0017.tif" />
(V) wherein Hal represents a halogen atom, in a conventional manner.
This reaction can usually be carried out in a solvent. Any solvent can be used as long as it does not show any detrimental effect on the reaction. Examples of such solvents are chloroform, 1,2-dichloroethane, ethyl ether, pyridine, tetrahydrofuran, dioxane, ethylene glycol dimethyl ether, benzene, toluene and mixtures thereof.
The temperature at which the reaction is carried out is not particularly limited. Generally, a temperature of from -50 to 150 ° C is preferred. Upon completion of the reaction, the intended compound can be isolated by conventional means.
c) Compounds (I) wherein Y is -R<sup>10</sup>COOR<sup>3</sup> wherein R<sup>10</sup> and R<sup>3</sup> has the above meaning, can be obtained by a ketone of the general formula (VI) (VI)
<img file="NO168577B_D0018.tif" />
ϊ wherein R<sup>1</sup> and R<sup>2</sup> has the above meaning, halide of the general formula is reacted with a (VII)
R<sup>10</sup> - COOR<sup>3</sup> (VII)
Zn for a halogen atom,
R<sup>3</sup> it also has R<sup>10</sup> and in tetrahydrofuran in which Hal is mentioned, in the presence of conventional zinc to give a hydroxy compound of formula (VIII) (Reformatsky reaction)
<img file="NO168577B_D0019.tif" />
<img file="NO168577B_D0020.tif" />
(VIII)
Examples of solvents available for the above reaction are tetrahydrofuran, benzene and ether. Further, a solvent mixture comprising, for example, trimethylborate or triethylborate with tetrahydrofuran may be used.
The hydroxy compound (VIII) thus obtained can be dehydrated in a conventional manner to give a compound (I).
Examples of solvents available for this reaction are benzene, toluene, tetrahydrofuran, ether and dioxane, while examples of catalysts for the reaction are p-toluenesulfonic acid, thionyl chloride, phosphorus pentoxide, iodine and hydrochloric acid. This reaction can be carried out at a temperature of about -70 to 150 ° C.
d) An imino compound of formula (I) wherein Y is -C (R 2) = NR<sup>7</sup>, i.e. -C (VR<sup>9</sup>) = NR<sup>7</sup> may be prepared by procedures A and B set forth below.
A) A compound of formula (I) wherein Y is -CONHR<sup>7</sup> is reacted with a compound of formula HVR<sup>9</sup> using a halogenating agent such as phosphorus oxychloride, phosphorus pentachloride and thionyl chloride to give the imino compound of formula (I) wherein Y is -C (VR<sup>9</sup>) = NR<sup>7</sup>, in a solvent such as benzene, toluene and chloroform. The reaction may be carried out in the presence of an organic base such as dimethylaniline, triethylamine and pyridine or an inorganic base such as potassium carbonate and sodium carbonate, or
B) The same starting compound used with Method A) is reacted with a sulfiding agent such as phosphorus pentasulfide in a solvent such as benzene and toluene to give a corresponding thioamide of formula (I) wherein Y is -C (= S) -NHR<sup>7</sup>. Then, the thioamide reacts with a halide of formula R<sup>9</sup>-halo to give the bioimine of formula (I) wherein Y is -C (SR<sup>9</sup>) = NR<sup>7</sup>. A solvent and a base can be used in the same manner as shown by Method A).
e) A compound of formula (I) wherein Y is -C (VR<sup>9</sup>) = NR<sup>7</sup>, wherein R<sup>9</sup> is alkyl, and R<sup>7</sup> is lower alkoxy obtained by a compound of formula (I) wherein Y is -CO-VR<sup>9</sup> is reacted with H<sub>2</sub>REF<sup>7</sup>.
The diphenylethylene derivatives exhibit an excellent effect with respect to their pharmacological properties. They effectively inhibit platelet agglutination and are useful as anti-platelet and antithrombotic agents. In particular, they are suitable for the treatment and / or prevention of cerebrovascular diseases such as transient ischemic attack (TIA), cerebral infarction (thrombus and embolus) and cerebral arteriosclerosis, post-operative thrombus, embolus and bloodstream disorders such as vascular surgical and extracorporeal diseases, obstructive arteriosclerosis, peripheral arteriosclerosis, SLE and Raynaud's disease, and ischemicardial diseases such as stenocardia a nd myocardial infarction . They are also use ful to prevent the recurrence of these diseases and to improve their prognosis.
The effect of the products of the invention is demonstrated by the following pharmacological tests, the first for the diphenylethylene derivative.
Test Example.
1. Effect on inhibition of platelet agglutination (in vitro).
Blood was collected from a human cubital vein in such a way that it contained a 3.8% solution of sodium citrate in an amount of 1.10 times the blood volume. Subsequently, platelet rich plasma (PRP) was prepared therefrom, according to the method of Packham et al. (cf. Packham, MA, et al., J. Exp. Med., 126, 171-189 (1967)). To 0.2 ml of the obtained PRP were added 25 µl portions of solutions of each of the compounds prepared by the compound (A to E) at different concentrations, and the mixture / was incubated at 37 ° C for three minutes. Subsequently, platelet agglutination was induced by arachidonic acid, collagen , a, ADP and PAF. Pl atelet agglutination was assessed according to the method of Mustard et al. (cf. Mustard, JF, et al., J. Lab. Clin. Med., 64, 548 559 (1964)) using an aggregometer available from Schenko or Niko Bioscience Co. In other words, al. (cf. Mustard, JF, et al., J. Lab. Clin. Med., 64, 545 559 (1964)) using an aggregometer available from Schenko or Niko Bioscience Co. In other words, this test is performed to investigate the effect on platelet aggregation (in vitro).
Table 1
2. Effect of inhibiting platelet agglutination (ex vivo),
Compounds A to E, which are typical examples of the compounds of the invention, were administered orally to guinea pigs. After two hours, the blood from each animal was collected from the abdominal aorta under ether anesthesia. Subsequently, the effect of each compound on platelet agglutination induced by collagen (3 µg / ml) and arachidonic acid (50 µM) was investigated. Ta ble 2 shows 50% effective do ses determined from so lvent delivery ratios. In other words, this test is conducted to examine the effect on platelet aggregation (ex vivo).
Table 1.
<td>Testforb.</td><td>Effect on Inhibition of Collagen Agglutination (Csof / UM)</td><td>Effect of inhibiting arachidonic acid agglutination (CsQi / UM)</td><td>Effect of inhibiting ADP agglutination<sup>IC</sup>5O<sup>(</sup>/<sup>UM)</sup></td><td>Effect of inhibition of PAF agglutination <sup>IC</sup>50<sup>(</sup>/<sup>UM)</sup></td>
<td>Comp. A (Ex. 1)</td><td> 20</td><td> 5</td><td> 5</td><td> 15</td>
<td>Forb, B (Ex. 2)</td><td> 1,4</td><td> 0,9</td><td> 2,0</td><td> 2,5</td>
<td>Comp. C (Ex. 3)</td><td> 0,2</td><td> 0,07</td><td> 0,2</td><td> 1,8</td>
<td>Comp. D (Ex. 4)</td><td> 1,7</td><td> 0,8</td><td> 1,9</td><td> 2,8</td>
<td>Comp. E (Ex. 5)</td><td> 0,15</td><td> 0,06</td><td> 0,2</td><td> 1,3</td>
<td>Table 2,</td><td></td><td></td><td></td><td></td>
<td></td><td></td><td></td><td>Effect on inhibition</td><td>Impact on content</td>
<td>Testforb.</td><td></td><td></td><td>collagen agglomeration</td><td>bering of arachis</td>
<td></td><td></td><td></td><td>tina tion</td><td>donsyreagglutina-</td>
<td></td><td></td><td></td><td>ED5O (mg / kg)</td><td>sion, ED 50 (mg / kg)</td>
<td>Comp. A</td><td>(Ex ..</td><td> 1)</td><td> 100</td><td> 100</td>
<td>Comp. B</td><td>(Ex.</td><td> 2)</td><td> .....20 ............</td><td> .........20</td>
<td>Comp. C</td><td>(Ex.</td><td> 3)</td><td> 0,05</td><td> 0,03</td>
<td>Comp. D</td><td>(Ex.</td><td> 4)</td><td> 0,05</td><td> 0,03</td>
<td>Comp. E</td><td>(Ex.</td><td> 5)</td><td> 1</td><td> 0,3</td>
<td colspan="2">ticlopidine</td><td></td><td> <200</td><td> 150</td>
3. Acute toxicity.
The acute toxicity of compounds A to E, which are typical examples of the compounds of the invention, was tested by applying these compounds to male Wistar rats of body weight 300 to 400 g. As a result, the LD 50 for each compound was determined to be higher than 500 mg per day kg.
When the compounds of the invention are used as antibody platelet and antithrombotic agents, they may be administered orally or parenterally, for example, intramuscularly, subcutaneously or intravenously. The dose may vary according to, for example, the south, the condition and the age of the patient. Unless otherwise specified, the compounds may be administered in doses of 0.1 to 300 mg, preferably 0.1 to 60 mg, particularly preferably 0.3 to 30 mg, and most preferably 0.6 to 10 mg per day. 24 hours for an adult.
The compounds of the invention can be used in, for example, tablets, granules, powders, capsules, injection solutions or suppositories in known ways.
In order to further illustrate the invention, the following examples are given.
Example .1? N-benzyl-3,3-bis (4-methoxyphenyl) acrylamide.
2.84 g (0.01 M) of 3,3-bis (4-methoxyphenyl) acrylic acid was dissolved in 10 ml of dimethylformamide. To the solution obtained, 1.2 g (0.012 M) of triethylamine and 1.2 g of ethyl chlorocarbonate were added under ice-cooling. After one hour, 1.2 g of benzylamine was added and the mixture was stirred at room temperature for one hour. After completion of the reaction, the reaction mixture was dissolved in 50 ml of ethyl acetate, washed with 10% hydrochloric acid, a saturated aqueous solution of NaHCO<sub>3</sub> and a brine in sequence and dried over magnesium sulfate followed by purification by silica gel column chromatography. Thus it was achieved
3.3 g of the title compound having the following physicochemical properties. Melting point 99 - 100 ° C.
NMR (CDCl<sub>3</sub>): 6.7 - 7.3 (13H), 6.3 (1H), 5.5 (1H), 4.3 (2H), 3.8 (6H).
Example 2: N- [3,3-bis (4-methoxyphenyl) allyl] benzenesulfonamide.
2.69 g of 3,3-bis (4-methoxyphenyl) allylamine was dissolved in 5 ml of pyridine. To the solution obtained, 1.9 g of benzenesulfonyl chloride was added under ice-cooling and the mixture was stirred for five hours. After completion of the reaction, the reaction mixture was dissolved in ethyl acetate and washed with 5% hydrochloric acid and a saturated brine in sequence. The crude product obtained in this way was purified by silica gel chromatography in a conventional manner. In this way, 3.6 g of the title compound was obtained in the form of a colorless oily product.
NMR (CDCl<sub>3</sub>) 5: 7.8 (2H), 7.5 (3H), 6.7 - 7.1 (8H), 5.8 (1H),
4.4 (1H), 3.8 (6H), 3.7 (2H).
Example 3: Ethyl 4-cyano-5,5-bis (4-methoxyphenyl) -4-pentenoate. 2.42 g (0.01 M) of 4,4'-dimethoxybenzophenone, 1 g of zinc and 2.1 g of trimethylborate were suspended in 15 ml of tetrahydrofuran. To the suspension obtained was added 2.2 g of ethyl 4-bromo-4-cyanobutyrate and a catalytic amount of iodine and the mixture was allowed to react at room temperature for five hours. After completion of reaction, ml of saturated aqueous solution of ammonium chloride was added and the mixture was stirred for one hour. After filtration of zinc, the filtrate was extracted with ethyl acetate. The crude product obtained was purified by silica gel chromatography to give 1.5 g of crystals. The crystals were dissolved in 10 ml of benzene and 1 ml of thionyl chloride was added to the solution obtained. After stirring at room temperature for one hour, the reaction mixture was concentrated in vacuo and dispersed in ice-mixed water. The mixture was extracted with benzene, washed with water and concentrated. Thus, 1.3 g of the title compound was obtained in the form of a colorless oily product.
NMR (CDCl<sub>3</sub>): 6.7 - 7.3 (8H), 4.1 (2H), 3.8 (6H), 2.7 (4H), 1.3 (3H).
Example 4: 4-Cyan-5,5-bis (4-methoxyphenyl) -4-pentenoic acid.
3.6 g of ethyl 4-cyano-5,5-bis (4-methoxyphenyl) -4-pentenoate was dissolved in 10 ml of dioxane and 3 ml of a 5N aqueous solution of NaOH was added. The resulting mixture was stirred at 60 ° C for five hours. After completion of the reaction, the reaction mixture was acidified and extracted with ethyl acetate. Thus, 3.2 g of the title compound having the following physicochemical properties was obtained. This product could be further purified by recrystallization from ethyl acetate / hexane. Melting point: 124 - 125 ° C.
NMR (CDCl<sub>3</sub>) 5: 9.5 (1H), 6.8 - 7.4 (8H), 3.8 (6H), 2.7 (4H).
Example 5: Methyl 5-cyano-6,6-bis (4-methoxyphenyl) -5-hexenoate.
The procedure of Example 3 was followed except that the ethyl 4-bromo-4-cyanobutyrate was replaced with 2.2 g of methyl 5bromo-5-cyanopentanoate. Thus, the title mentioned compound was obtained with the following physicochemical properties.
NMR (CDCl<sub>3</sub>5: 6.7 - 7.3 (8H), 3.8 (6H), 3.6 (3H),
1.8 - 2.6 (6H).
Examples 6 to 13:
6. N-phenyl-3,3-bis (4-methoxyphenyl) acrylamide.
7. N- (3-pyridyl) -3,3-bis (4-methoxyphenyl) acrylamide.
8. N- (4-pyridyl) -3,3-bis (4-methoxyphenyl) acrylamide.
9. N- (2-chlorobenzyl) -3,3-bis (4-methoxyphenyl) acrylamide.
10. N- (3-pyridyl) methyl-3,3-bis (4-methoxyphenyl) acrylamide.
11. N-benzyl-N-methyl-3,3-bis (4-methoxyphenyl) acrylamide.
12. N-benzyl-N-isopropyl-3,3-bis (4-methoxyphenyl) acrylamide.
13. N- (2- (Ν, Ν-dimethylamino) ethyl) -N- (2- (3,4-dimethoxyphenyl) ethyl) -3,3-bis (4-methoxyphenyl) acrylamide.
Each of the compounds listed above was obtained in the same manner as shown in Example 1, except that benzylamine was replaced with the respective compounds given below.
6. aniline, 7. 3-aminopyridine, 8. 4-aminopyridine,
9. 2-chlorobenzylamine, 10. 3-aminomethylpyridine,
11. N-methylbenzylamine, 12. N-isopropylbenzylamine, and
13. N, N-dimethyl-N '- (2- (3,4-dimethoxyphenyl) ethyl) ethylenediamine.
Example 14: Ethyl 3,3-bis (4-methoxyphenyl) -N-phenylacrylimide. Ig (2.8 mmol) of the amide obtained in Example 6 was reacted with 10 ml of phosphorus oxychloride at 60 ° C for two hours. The product mixture was condensed and mixed with 50 ml of chloroform, ml of ethanol and 5 ml of Ν, Ν-dimethylaniline, followed by further reaction at 60 ° C for two hours to give 0.2 g of the above compound.
. 16
Example 15: 3,3-Bis (4-methoxyphenyl) -N, Ν'-diphenylacrylamidine.
This was achieved by reacting between 1 g of the amide obtained in Example 6 and 0.3 ml of aniline with 0.3 ml of phosphorus oxychloride in 20 ml of toluene for three hours at reflux. The amount was 80 mg.
Example 16: Allyl-3,3-bis (4-methoxyphenyl) -N-phenylacrylthioimide.
g of the amide obtained in Example 6 was reacted with 1.2 g of phosphorus pentasulfide in 50 ml of benzene at 50 ° C for one hour. The product mixture was condensed and dissolved in chloroform, followed by washing with water. 0.6 g of the thioamide was obtained from the product mixture by chromatography using silica gel. 0.6 g (1.6 mmol) of the thioamide was reacted with 2.0 g (16 mmol) of allyl bromide with 0.5 g of potassium carbonate in 50 ml of tetrahydrofuran at room temperature overnight. The reaction product mixture was condensed and dissolved in chloroform, followed by washing with water. 0.45 g of the above compound was obtained by chromatography on silica gel.
Example 17: Ethyl 3-methoxyimino-5,5-bis (4-methoxyphenyl) -4-pentenoate.
4.0 g (11.3 mmol) of ethyl 3-oxy-5,5-bis (4-methoxyphenyl) 4-pentenoate was reacted with 2.0 g (24.0 mmol) of the hydrochloric acid salt of methoxyamine in 50 ml of pyridine at 60 ° C for two hours. 3.2 g of the above compound were obtained.
Example 18: 3-Methoxyimino-5,5-bis (4-methoxyphenyl) -4pentenoic acid.
2.0 g of the above compound was obtained by the same reaction as shown in Example 4 from the ester obtained in Example 17.
Example 19: N- (3,3-bis (4-methoxyphenyl) allyl) methanesulfonamide.
Example 20: N- (3,3-bis (4-methoxyphenyl) allyl) -4-carboxybenzenesulfonamide.
These were obtained by the same reaction as shown in Example 2, except that methanesulfonic acid chloride and 4- (chlorosulfonyl) benzoic acid were used instead of the benzenesulfonic acid chloride.
Example 21: 4-Cyan-5,5-bis (4-ethoxyphenyl) -4-pentenoic acid. Example 3 was followed except for the use of 4,4'-diethoxybenzophenone and tetrahydrofuran as a solvent. The product mixture was dehydrated with thionyl chloride and hydrolyzed in the same manner as shown in Example 4.
Example 22: 4-Cyan-5- (4-hydroxyphenyl) - (Z) -5- (4-methoxyphenyl) -4-pentenoic acid and (E) compound thereof.
Example 3 was followed except that 4-methoxy-4'-methoxymethoxybenzophenone was used. The product mixture was treated with hydrochloric acid and hydrolyzed in the same manner as in Example 4. Elution of the product mixture with a mixture of methanol and chloroform at a ratio of 5:95 by chromatography using the silica gel gamma (Z) compound. Elution with a mixture at 10:90 gave the (E) compound.
Example 23: 4-Cyan-5- (4-hydroxyphenyl) - (Z) -5- (4-ethoxyphenyl) -4-pentenoic acid and (E) compound thereof.
Example 22 was followed except for the use of 4ethoxy-4'-methoxymethoxybenzophenone.
Example 24: 4-Cyan-5,5-bis (4-hydroxyphenyl) -4-pentenoic acid.
Example 25: 4-Cyan-2-methyl-5,5-bis (4-methoxyphenyl-4pentenoic acid).
Example 22 was followed except for the use of 4,4'-dimethoxymethoxybenzophenone and 4,4'-dimethoxybenzophenone. The hydrolysis product was the above compound.
Example 26: 4-Carboxy-5,5-bis (4-methoxyphenyl) -4-pentenoic acid. Example 3 was followed except that diethyl 2-bromoglutarate was used in place of ethyl 4-bromo-4-cyanobutyrate and the hydrolysis was carried out in the same manner as shown in Example 4
Example 27: 4-carbamoyl-5,5-bis (4-methoxyphenyl) -4pentenoic acid.
g of the acid obtained in Example 4 was heated with 10 ml of a 5N aqueous solution of NaOH in 50 ml of ethylene glycol at 150 ° C for twelve hours. The product mixture was acidified with hydrochloric acid and extracted with ethyl acetate. The extract was treated by chromatography on silica gel to give 0.5 g of the above compound.
Example 28; 5-cyano-6,6-bis (4-methoxyphenyl) -5-hexenoic acid.
260 The mg of ester obtained in Example 5 was treated in the same manner as shown in Example 4 to give 250 mg of the above compound. Data from NMR analysis of the compounds obtained in Examples 6 to 28 are given below. The assays were performed with CDCl3,
<td>examples</td><td>Analyzes</td>
<td> 6</td><td>6.8-7.4 (14H)> 6.4 (1H), 3.9 (6H)</td>
<td> 7</td><td>7.9-8.4 (3H) / 6.8-7. 4 (10H) / 6.4 (1H), 3.8 (6H)</td>
<td> 8</td><td>8.3 (3H), 6.7-7.3 (10H), 6.3 (1H), 3.8 (6H)</td>
<td> 9</td><td>7.0-7.3 (8H), 6.7-6.9 (4H), 6.3 (1H) 5.7 (1H), 4.4 (2H)> 3.8 (6H)</td>
<td> 10</td><td>8.5 (1H), 8.3 (1H) <7.0-7.5 (611), 6.8 (4H), 6.3 (1H)> 5.6 (1H)> 4.3 (2H), 3.8 (6H)</td>
<td> 11</td><td>6.7-7.4 (13H) / 6.3 (1H), 4.5 (2H), 3.8 (6H), 2.7C3H)</td>
examples
Analyzes
6.6 - 7.5 (13H) / 6.4 (1H) »4.8C1H),
4.5C2H), 3.8 (6H), 1.0 (6H)
6.6- 7.4 (11H) / 6.2QH), 3.8 (12H),
3.2-3.7 (4H), 2.1-2.8 (10H)
6.5- 7.6 (13H) r 5.9 (1H)> 4.0 (2H),
3.8 (6H), 0.9 (3H)
6.6- 7.4Q9H), 6.Κ1Η), 3.8 (6H)
6.5- 7.3 (13H) r 6.2 (1H), 5.8 (1H),
5.K2H) »3.5-3.8 (8H)
6.7-7.3 (8H) r 6.6 (1H) r 4.0 (2H).,
3.9C3H) · 3.8 (6H) r 2.9 (2H), 1.2 (3H) 10.O (1H), 6.7-7.3C9H), 3.9 (3H) i,
3.8 (6H), 2.9 (2H)
6.6- 7.4 (8H), 5.9 (1H) 4.4 (1H),
3.8 (8H), 2.9 (3H)
10.0 (1H) r 7.6-8.2 (4H), 6.5-7.K8H),
5.7UH), 4.4 (1H), 3.4-3.9 (8H)
9.5 (1H) r 6.6-7.2 (8H) / 4.0 (4H) <
2.6 (4H) »1.4 (6H)
8.0 ~ 9.5 (2H), 7.1-7.5 (2H),
6.7 - 7.0 (6H) t 3.8 (3H), 2.7 (4H)
7.5-9.5 (2H) / 7.0-7.3 (2H),
6.6-6.9 (6H) i 4.0 (2H) f 2.6 (4H),
1.4 (3H)
8.5-10.0 (3H) r 6.7-7.4 (8H), 2.6 (4H)
9.0 (1H), 7.1-7.3 (2H), 6.6-7.0 (6H),
3.8 (6H) r 2.3-3.K3H) r 1.2 (3H)
<td>examples</td><td>Analyzes</td>
<td> 26</td><td>8.0-9.5 (2H), 6.7-7.4 (8H),</td>
<td></td><td>3.8 (6H), 2.7 (4H)</td>
<td> 27</td><td>8.2 (1H), 6.6-7.2U0H), 3.7 (6H),</td>
<td></td><td>2.3 (4H)</td>
<td> 28</td><td>8.0-9.0UH), 7.1-7.3C2H),</td>
<td></td><td>6.7-7.0 (6H), 3.8C6H),</td>
2.2-2.5 (4H)<sub>t</sub> 1.8-2.2 (2H)
Contents20
20 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
88 members in 22 offices
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|---|---|---|---|
| 5706186 | Japan | A | |
| 5706186 | Japan | A | |
| 6596386 | Japan | A | |
| 6596386 | Japan | A | |
| 5706186 | – | – | – |
| 6596386 | – | – | – |
| JP19860057061 | – | – | – |
| JP19860065963 | – | – | – |
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Numbers
- Publication, DOCDB
- 168577
- Publication, EPODOC
- NO168577B
- Application
- 871072
- Application, DOCDB
- 871072
- Application, EPODOC
- NO19870001072
Titles2
- Norwegian
- ANALOGIFREMGANGSMAATE FOR FREMSTILLING AV TERAPEUTISK AKTIVE DIFENYLETYLENFORBINDELSER
- English
- ANALOGY PROCEDURE FOR THE PREPARATION OF THERAPEUTICALLY ACTIVE DIPHENYLTHYLENE COMPOUNDS
Classification
- CPC, 25
- C07D257/04
- C07C59/64
- C07C235/14
- C07C235/34
- C07C251/40
- C07C251/60
- C07C255/00
- C07C255/41
- C07C255/62
- C07C257/06
- C07C257/18
- C07C311/13
- C07C311/17
- C07C327/58
- C07D207/46
- C07D213/40
- C07D213/75
- C07D231/12
- C07D233/56
- C07D249/08
- C07D339/08
- A61P7/02
- A61P9/08
- A61P9/10
- C07C251/52
- IPC, 59
- A61K31 15
- A61K31 165
- A61K31 18
- A61K31 19
- A61K31 215
- A61K31 22
- A61K31 275
- C07C57 42
- A61K31 277
- A61K31 33
- A61P7 02
- A61P9 08
- A61P9 10
- C07C51 00
- C07C59 64
- C07C67 00
- C07C69 618
- C07C231 00
- C07C231 02
- C07C233 01
- C07C233 02
- C07C233 11
- C07C235 14
- C07C235 34
- C07C237 20
- C07C239 00
- C07C241 00
- C07C251 40
- C07C251 60
- C07C253 00
- C07C253 30
- C07C255 04
- C07C255 32
- C07C255 34
- C07C255 37
- C07C255 41
- C07C255 61
- C07C255 62
- C07C257 04
- C07C257 06
- C07C257 10
- C07C257 18
- C07C301 00
- C07C303 38
- C07C311 00
- C07C311 13
- C07C311 15
- C07C311 17
- C07C325 00
- C07C327 00
- C07C327 58
- C07D207 46
- C07D213 40
- C07D213 72
- C07D213 75
- C07D249 12
- C07D257 04
- C07D339 08
- C07D521 00