Pharmaceutical compositions containing thiazole derivatives

The present invention relates to pharmaceutical compositions for the oral treatment of chronic myelogenous leukemia (CML).

Background of the Invention

Protein tyrosine kinases (PTKs) are enzymes which, in conjunction with ATP as a substrate, phosphorylate tyrosine residues in peptides and proteins. These enzymes are key elements in the regulation of cell signaling including cell proliferation and cell differentiaton. PTKs comprise, inter alia, receptor tyrosine kinases (RPTKs), including members of the epidermal growth factor kinase family (e.g., HER1 and HER2), platelet derived growth factor (PDGF); and kinases that play a role in angiogenesis (Tie2־ and KD); and, in addition, non־receptor tyrosine kinases, including members of the Syk, JAK and Src (e.g. Src, Fyn, Lyn, Lek and Blk) families (see Bolen, J.B., Rowley, R.B., Spana, C., and Tsygankov, A.Y., “The src family of tyrosine protein kinases in hemopoietic signal transduction”, FASEB J., 6, 34031992) 3409־); Ulrich,

A. and Schlessinger, J., “Signal transduction by receptors with tyrosine kinase activity”, Cell, 61, 203-212 (1990); and Ihle, J.N., “The Janus protein tyrosine kinases in hematopoetic cytokine signaling”, Sem.

Immunol., 7, 247-254 (1995)).

Enhanced activity of PTKs has been implicated in a variety of malignant and nonmalignant proliferative diseases. In addition, PTKs play a central role in the regulation of cells of the immune system. PTK inhibitors can thus impact a wide variety of oncologic and immunologic disorders. Such disorders may be ameliorated by selective inhibition of a certain receptor or non-receptor PTK, such as Lek, or due to the homology among PTK classes, by inhibition of more than one PTK by an inhibitor.

A PTK of particular interest is Lek which is found in T cells where it is involved in phosphorylating key protein substrates. It is required for productive antigen receptor signaling and cell activation. In the absence of Lek activity, the T cell receptor (TCR) zeta chain is not phosphorylated, the kinase ZAP-70 is not activated, and Ca²⁺ mobilization essential for T cell activation does not occur (see Weiss, A. and Littman, D.R., “Signal transduction by lymphocyte antigen receptors”, Cell, 76, 263-274: (1994); Iwashima, M., Irving, B.A., van Oers, N.S.C., Chan, A.C., and Weiss, A., “Sequential interactions of the TCR with two distinct cytoplasmic tyrosine kinases”, Science, 263,1136-1139 (1994); and Chan, A.C., Dalton, M., Johnson, R., Kong, G., Wang, T., Thoma, R., and Kurosaki, T., “Activation of ZAP-70 kinase activity by phosphorylation of tyrosine 493 is required for lymphocyte antigen receptor function”, EMBO J., 14, 2499-2508 (1995)). Inhibitors of Lek are thus useful in the treatment of T-cell mediated disorders such as chronic diseases with an important T cell component, for example rheumatoid arthritis, multiple sclerosis and lupus, as well as acute diseases where T cells are known to play an essential role, for example acute transplant rejection and delayed-type hypersensitivity (DTH) reactions.

,873/2

Summary of the Invention

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof

<img file="IL170873A_D0001.tif" />

<img file="IL170873A_D0002.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is chronic myelogenous leukemia (CML).

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof

<img file="IL170873A_D0003.tif" />

IV in combination with a pharmaceutically acceptable carrier, wherein the cancer is gastrointestinal stromal tumor (GIST).

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof.

<img file="IL170873A_D0004.tif" />

iv in combination with a pharmaceutically acceptable carrier, wherein the cancer is mastocytes.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof

<img file="IL170873A_D0005.tif" />

<img file="IL170873A_D0006.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is a germ cell tumor.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0007.tif" />

<img file="IL170873A_D0008.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is small cell lung cancer (SCLC).

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0009.tif" />

<img file="IL170873A_D0010.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is melanoma.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0011.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is pancreatic cancer.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof.

<img file="IL170873A_D0012.tif" />

<img file="IL170873A_D0013.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is prostate cancer.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof

<img file="IL170873A_D0014.tif" />

<img file="IL170873A_D0015.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is pediatric sarcoma.

The present invention relates to a pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof

<img file="IL170873A_D0016.tif" />

IV in combination with a pharmaceutically acceptable carrier, wherein the cancer is resistant STI571־.

(3) alkenylene; or (4) alkynylene; and

Z^is:

(1) a single bond;

(2) -Ζ^Οχ-Ζ^;

(3) ¾-0(0)¾ (4) -Z₁₁-C(S)-Z₁₂-;

(5) -Z^O-Z^,-;

(6) ¾-8¾ (7) ¾-0-0(0)¾ (8) ¾-0(0)-0¾ (9) -C(NR₁₃)-;

(10) -C(CHR_M)-; or (11) -C(C(R₁₄)₂)-.

Compounds within formula I include compounds of the following formula H and salts thereof:

<img file="IL170873A_D0017.tif" />

II where n is 1 or 2

A is selected from carbon and nitrogen;

B is selected from nitrogen, oxygen and sulfur;

X3 is oxygen or sulfur; and

R_״ R2, R₃, R₄ and R_s are as described above.

Detailed Description of the Invention

The following are definitions of terms used in this specification.

The initial definition provided for a group or term herein applies to that group or term throughout the present specification, individually or as part of an nth at group, unless otherwise indicated.

׳The terms alk or alkyl refer to straight or branched chain hydrocarbon groups having 1 to. 12 carbon atoms, preferably 1 to 8 carbon atoms. The expression lower alkyl refers to alkyl groups of 1 to 4 carbon atoms.

׳]?he term ¹'alkenyl refers to straight or branched chain hydrocarbon groups of 2 to 10, preferably 2 to 4, carbon atoms having at least one double bond. Where an alkenyl group is bonded to a nitrogen atom, it is preferred that such group not be bonded directly through a carbon bearing a double bond.

The term alkynyl refers to straight or branched chain hydrocarbon groups of 2 to 10, preferably 2 to 4, carbon atoms having at least one triple bond. Where an alkynyl group is bonded to a nitrogen ׳atom, it is preferred that such group not be bonded directly through a carbon bearing a triple bond.

The term alkylene refers to a straight chain bridge of 1 to 5 carbon atoms connected by single bonds (e.g., -(CH2)x- wherein x is 1 to 5), which may be substituted ’with 1 to 3 lower alkyl groups.

The term alkenylene refers to a straight chain bridge of 2 to 5 carbon atoms having one or two double bonds that is connected by single bonds and may be substituted with 1 to 3 lower alkyl groups. Exemplary alkenylene groups are -CH=CH-CH=CH־, -CH2־CH=CH-, -CH2-CH=CH-CH2־> -C(CH3)2CH=CH- and -CH(C2H5)-CH=CH-.

The term alkynylene refers to a straight chain bridge of 2 to 5 carbon atoms that has a triple bond therein, is connected by single bonds, and may be substituted with 1 to 3 lower alkyl groups. Exemplary alkynylene groups are -C= C-, -CH2־C= C-, -CH(CH3)־C— C- and

-C= C-CH(C2H5)CH2-.

The terms “ar” or aryl refer to aromatic cyclic groups (for example 6 membered monocyclic, 10 membered bicyclic or 14 membered tricyclic ring systems) which contain 6 to 14 carbon atoms. Exemplary aiyl groups include phenyl, naphthyl, biphenyl and anthracene.

The terms cycloalkyl and cycloalkenyl refer to cyclic hydrocarbon groups of 3 to 12 carbon atoms.

The terms halogen and halo refer to fluorine, chlorine, bromine and iodine.

The term *unsaturated ring” includes partially unsaturated and aromatic rings.

The terms heterocycle, heterocyclic or heterocyclo refer to fully saturated or unsaturated, including non-aromatic (i.e. “heterocycloalkyl) and aromatic (i.e. “heteroaryl”) cyclic groups, for example, 4 to 7 membered monocyclic, 7 to 11 membered bicyclic, or 10 to 15 membered tricyclic ring systems, which have at least one heteroatom in at least one carbon atom-containing ring. Each ring of the heterocyclic group containing a heteroatom may have 1, 2, 3 or 4 heteroatoms selected from nitrogen atoms, oxygen atoms and/or sulfur atoms, where the nitrogen and sulfur heteroatoms may optionally be oxidized and the nitrogen heteroatoms may optionally be quaternized. The heterocyclic group may be attached at any heteroatom or carbon atom of the ring or ring system.

Exemplary monocyclic heterocyclic groups include pyrrolidinyl, pyrrolyl, pyrazolyl, oxetanyl, pyrazolinyl, imidazolyl, imidazolinyl, imidazolidinyl, oxazolyl, oxazolidinyl, isoxazolinyl, isoxazolyl, thiazolyl, thiadiazolyl, thiazolidinyl, isothiazolyl, isothiazolidinyl, furyl, tetrahydrofuryl, thienyl, oxadiazolyl, piperidinyl, piperazinyl,

2-oxopiperazinyl, 2-oxopiperidinyl, 2-oxopyrrolodinyl, 2-oxoazepinyl, azepinyl, 4-piperidonyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, ־10tetrahydropyranyl, morpholinyl, thiamorpholinyl, thiamorpholinyl sulfoxide, thiamorpholinyl sulfone, 1,3-dioxolane and tetrahydro-1,1-dioxothienyl, triazolyl, triazinyl, and the like.

Exemplary bicyclic heterocyclic groups include indolyl, benzothiazolyl, benzoxazolyl, benzodioxolyl, benzothienyl, quinuclidinyl, quinolinyl, tetra-hydroisoquinolinyl, isoquinolinyl, benzimidazolyl, benzopyranyl, indolizinyl, benzofuryl, chromonyl, coumarinyl, benzopyranyl, cinnolinyl, quinoxalinyl, indazolyl, pyrrolopyridyl, furopyridinyl (such as furo[2,3-c]pyridinyl, furo[3,2-b]pyridinyl] or furo[2,3-b]pyridinyl), dihydroisoindolyl, dihydroquinazolinyl (such as

3,4-dihydro4־-oxo-quinazolinyl), tetrahydroquinolinyl and the like.

Exemplary tricyclic heterocyclic groups include carbazolyl, benzidolyl, phenanthrolinyl, acridinyl, phenanthridinyl, xanthenyl and the like.

The term heteroaryl” refers to aromatic heterocyclic groups.

Exemplary heteroaryl groups include pyrrolyl, pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl, thiadiazolyl, isothiazolyl, furyl, thienyl, oxadiazolyl, pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazolyl, triazinyl, and the like.

Where q is 1 or 2, “-C(O)_qH” denotes -C(O)-H or -C(O)-OH; “-C(O)_qR_e” or “-C(O)_qZ₆” denote, respectively, -C(O)-R₆ or -C(O)-OR₆, or -C(O)-Z₆ or C(O)-OZ₆; “-O-C(O)_qR_e” or “-O-C(O)_qZ₆” denote, respectively, -O-C(O)-R₆ or O-C(O)-OR₆, or -O-C(O)-Z₆ or -0-0(0)-0¾ and “-S(O)_qR₆” or “-S(O)_qZ₆״ denote, respectively, -SO־R₆ or -SO₂־R₆, or -SO-Z₆ or -SO₂-Z₆.

Compounds of the formula I may in some cases form salts which are also within the scope of this invention. Reference to a compound of the formula I herein is understood to include reference to salts thereof, unless otherwise indicated. The term salt(s), as employed herein, denotes acidic and/or basic salts formed with inorganic and/or organic acids and bases. Zwitterions (internal or inner salts) are included within the term

salt(s) as used herein (and may be formed, for example, where the R substituents comprise an acid moiety such as a carboxyl group). Also included herein are quaternary ammonium salts such as alkylammonium salts. Pharmaceutically acceptable (i.e., non-toxic, physiologically acceptable) salts are preferred, although other salts are useful, for example, in isolation or purification steps which may be employed during preparation. Salts of the compounds of the formula I may be formed, for example, by reacting a compound I with an amount of acid or base, such as an equivalent amount, in a medium such as one in which the salt precipitates or in an aqueous medium followed by lyophilization.

Exemplary acid addition salts include acetates (such as those formed with acetic acid or trihaloacetic acid, for example, trifluoroacetic acid), adipates, alginates, ascorbates, aspartates, benzoates, benzenesulfonates, bisulfates, borates, butyrates, citrates, camphorates, camphorsulfonates, cyclopentanepropionates, digluconates, dodecylsulfates, ethanesulfonates, fumarates, glucoheptanoates, glycerophosphates, hemisulfates, heptanoates, hexanoates, hydrochlorides, hydrobromides, hydroiodides, 2-hydroxyethanesulfonates, lactates, maleates, methanesulfonates, 2-naphthalenesulfonates, nicotinates, nitrates, oxalates, pectinates, persulfates,

3-phenylpropionates, phosphates, picrates, pivalates, propionates, salicylates, succinates, sulfates (such as those formed with sulfuric acid), sulfonates (such as those mentioned herein), tartrates, thiocyanates, toluenesulfonates, undecanoates, and the like.

Exemplary basic salts (formed, for example, where the R substituents comprise an acidic moiety such as a carboxyl group) include ammonium salts, alkali metal salts such as sodium, lithium, and potassium salts, alkaline earth metal salts such as calcium and magnesium salts, salts with organic bases (for example, organic amines) such as benzathines, dicyclohexylamines, hydrabamines,

’FwCr200470»5i5Jr ---=-״ סNT methvl-D-glucamid.es, t-butyl amines, and

N-methyl-D-ghicammes, N-metnyi u g! . mu v .

u . . ה ς quch as arginine, lysine and the like. The asic qalts with amino acids sucn as aig! > j nitrogen-containing gr״־P־ be quaternized with agents such as lower

Wide־ (e.g. methyl, ethyl, propyl, ־nd butyl chlorides hronudes and iodides), dialkyl sulfates (e.g. dimethyl, diethyl, dibutyl, and dmmy sulfates), long chain halides (e.g- decyl, 1״״Λ chlorides, bromides and iodides), aralkyl halides (e.g. benzyl an phenethyl bromides), and others.

Prodrugs and solvates of the compounds of the invention are contemplated herein. The term prodrug״, as employed herein, denotes a compound which, upon administration to a subject, undergoes c ermc conversion by metabolic or chemical processes to yield a compound formula I, or ־ salt and/or solvate thereof. Solvates of the compounds formula I are preferably hydrates.

All stereoisomers of the present compounds, such as those which _ffiay exist due to asymmetric carbons on the R substituents of the compound of the formula I, including enantiomeric and diastereomenc forms, are contemplated within the scope of this invention. Inmvidual stereoisomers of the compounds ofthe inventionmay, for examp ־ ־ substantially free of other isomers, or may be admixed, for examp^־־ racemates or with all other, or other selected, stereoisomer centers of the present invention can have the S or R configuration as defined by the IOTAC 1974 Recommendations.

Throughout the specification, groups and substituents thereof are chosen to provide stable moieties and compounds.

Preferred Compounds

Preferred compounds of the present invention are compounds of the formula I, and salts thereof, wherein Q is tluazole and wherein one or more, and especially all, of Z, X!, X2 R!> R₂, ^3י4^ י selected from the following definitions:

Z is a single bond;

R! is selected from hydrogen, halo, alkyl, aryl, alkoxy, alkoxycarbonyl, or aryloxycarbonyl and is more preferably hydrogen;

X₁ and Xj together form =0 or =S and more preferably form =0;

R_z is hydrogen;

R3 is selected from -Z₄-R₆ or -Z^-NR^Rg and is more preferably -Z₄-R_swherein Z₄ is a single bond and R_e is aryl or heteroaryl which is unsubstituted or substituted with Z_1־ Z₂ and one or more (preferably, one or two) groups Z₃;

R₄ is by dr ogen; and

R₅ is selected from aryl groups or heteroaryl groups which are substituted with Z_:, Z₂ and one or more (such as one or two) groups Z₃.

Methods of Preparation

The compounds of the formula I may be prepared by methods such as those illustrated in the following Schemes A through E and I through XI. Solvents, temperatures, pressures, and other reaction conditions may readily be selected by one of ordinary skill in the art. All documents cited are incorporated herein by reference in their entirety. Starting materials are commercially available or readily prepared by one of ordinary skill in the art. Constituents of compounds are as defined elsewhere in the specification or as specifically defined in a scheme.

The methods described herein may be carried out with starting materials and/or reagents in solution or alternatively, where appropriate, with one or more starting materials or reagents bound to a solid support (see (1) Thompson, L. A., Ellman, J. A., Chemical Reviews, 96, 555-600 (1996); (2) Terrett, N. K., Gardner, M., Gordon, D. W., Kobylecki, R. J., Steele, J., Tetrahedron, 51, 8135-8173 (1995); (3) Gallop, M. A., Barrett, R.

W., Dower, W. J., Fodor, S. P. A., Gordon, E. M., Journal of Medicinal

Chemistry, 37,1233-1251 (1994); (4) Gordon, E. M., Barrett, R. W., Dower,

W. J., Fodor, S. P. A., Gallop, M. A., Journal of Medicinal Chemistry, 37, .1385-1401 (1994); (5) Balkenhohl, F., von dem Bussche-Hunnefeld,

Lansky, A., Zechel, C., Angewandte Chemie International Edition in English, 35, 2288-2337 (1996); (6) Balkenhohl, F., von dem BusscheHunnefeld, Lansky, A., Zechel, C., Angewandte Chemie, 108, 2436-2487 (1996); and (7) Sofia, M. J., Drugs Discovery Today, 1, 271996) 34־)).

־15Scheme A

<img file="IL170873A_D0018.tif" />

r₂ (1) for R₂*H, base/R2L (2) for R₃ 5* H, base/R₃L

L = leaving group /

Λ ' for R2 and R₃ = H (1) saponification (2)

H iii

<img file="IL170873A_D0019.tif" />

<img file="IL170873A_D0020.tif" />

<img file="IL170873A_D0021.tif" />

<img file="IL170873A_D0022.tif" />

Scheme A illustrates a general method for forming compound la, which is a compound of the formula I where X! and X,, together form =0. As shown in Scheme A, compound la where R₂ and R₃ are hydrogen may be formed by saponification of i , (R* is a carboxyl protecting group such 5 as alkyl or aiylalkyl) followed by reaction with amine iii by methods known in the art. Alternatively^ may be reacted with R₂L, where L is a leaving group such as halogen (for example, in equimolar portions), optionally followed by reaction with R₃L (for example, in equimolar portions) to form ii. Also alternatively, i may be subjected to reductive 10 amination using the appropriate aldehyde or ketone to form ii. The compound ii may then be saponified and reacted with amino Hi, under conditions known to those skilled in the art, to form la where R₂ and/nr R₃are other than hydrogen.

Methods for preparing preferred substituents on the compounds I 15 are illustrated in the following Schemes I to XI.

Scheme Β

<img file="IL170873A_D0023.tif" />

RONO/CuX₂or

NaNO2/H⁺/CuX₂X = halogen

<img file="IL170873A_D0024.tif" />

<img file="IL170873A_D0025.tif" />

<img file="IL170873A_D0026.tif" />

Scheme B illustrates a general method for forming. compound lb, which is a compound of formula I where Z is -CH=CH- and X! and XL, together form =0. As shown in Scheme B, a 2-halo-compound vi can be prepared by reacting an appropriately substituted 2-amino-compound ia with copper (ii) halide and an alkyl nitrite such as tert-butyl nitrite in an aprotic solvent such as acetonitrile to form 2-halo-compound iv (see J. Het. Chem. 22, 1621 (1985)). Compound iv can be reduced with a reducing agent such as sodium borohydride in ethanol or aqueous tetrahydrofuran to form an alcohol, which can be oxidized with an oxidizing agent such as pyridinium chlorochromate or pyridinium dichromate to form aldehyde v. Compound y can be reacted with an alkyl(triphenylphosphorylidene) acetate to form carboxylate vi. Compound vi can be saponified and then reacted with an amine iii by methods known to those skilled in the art to form vii. Compound vii can be reacted with an amine R₂RjNH to form lb where Z is -CH=CH- and X_x, X., together form =0. Alternatively, compounds of formula lb where R₂ and R₃ are H, can be formed by reacting compound vii with an appropriately substituted benzyl aminp. such as 4methoxybenzyl amine to form compound ix. which can be hydrogenolyzed or treated with an acid such as trifluoromethanesulfonic acid and trifluoroacetic acid in the presence of anisole to form lb where R₂ and R₃ . are hydrogen.

Methods for preparing preferred substituents on the compounds I are illustrated in the following Schemes I to XI.

־19Scheme C

<img file="IL170873A_D0027.tif" />

<img file="IL170873A_D0028.tif" />

R2 and/or R3 ° H

Scheme C illustrates a general method for forming compound Ic, which is a compound of formula I where Z is -R₁₆C=CH- and X₁ and Xj together form =O. As shown in Scheme C, a 2-amino-compound ia can be reacted with a chloroformate or dicarbonate to form x, which can be saponified and treated with an organolithium reagent to form compound xi. Compound xi may be reacted with an alkyl(triphenylphosphorylidene)acetate, followed by deprotection of the carbamate protecting group to form xii. Alternatively, compound Ic where R₂ and R₃ are hydrogen may be formed by saponification of xii followed by reaction with an amine R₄R_SNH by methods known to those skilled in the art. Alternatively, compound xii may be reacted with R₂L where L is a leaving group such as halogen (for example, in equimolar portions), optionally followed by reaction with R₃L (for example, in equimolar portions) to form xiii, which may be saponified and reacted with an amine R₄R₅NH by methods known to those skilled in the art to form la where R₂ and/or R₃ are other than hydrogen.

Methods for preparing preferred substituents on the compounds I are illustrated in the following Schemes I to XI.

Scheme D

<img file="IL170873A_D0029.tif" />

Scheme D illustrates a general method for forming compound Id, which is a compound of the formula I where X! and X2 together form =S. The compounds of the formula la obtained in Scheme A may be converted into the corresponding thioamide Id using a reagent such as Lawesson’s reagent (2,4-bis(4-methoxyphenyl)-l,3-dithia-2,4-diphosphetane-2,410 disulfide (see Bull. Soc. Chim. Belg., 87, 223 (1978)).

Methods for preparing preferred substituents on the compounds I are illustrated in the following Schemes I to XI.

Scheme E

<img file="IL170873A_D0030.tif" />

1a ^R5

<img file="IL170873A_D0031.tif" />

Scheme E illustrates a general method for forming compound le, which is a compound of the formula I where X_: and X, are each hydrogen. As shown in Scheme E, the compound of the formula Id obtained in Scheme D may be converted into the corresponding amine le by reduction, for example, by reaction with Raney nickel.

Methods for preparing preferred substituents on the compounds I are illustrated in the following Schemes I to XI.

<img file="IL170873A_D0032.tif" />

(A) peptide bond synthesis, i.e., contact with

I H

OR Hi (B) synthesis via acid chloride, i.e., (1) thionyl chloride or oxalyl chloride (2) ^Rsy^R4

H iii

’י

<img file="IL170873A_D0033.tif" />

If ^R5

R3 = 0001¾

X1־,X2 = 0 starting from2; R₂ = alkyl, arylalkyl or cycloalkylalkyl starting from3: R₂ = H

As shown in Scheme I, carboxylate i can be reacted with a chloroformate or dicarbonate to form 1. Compound 1 can be treated with a base such as sodium hydride, sodium/potassium hexamethyldisilazide, or lithium diisopropylamide (LDA), and an alkylating agent RjX where X 5 is halogen and R₂ is preferably alkyl, arylalkyl, or cycloalkylalkyl, and then saponified with an aqueous base such as potassium hydroxide to give

2. Alternatively, 1 can the subjected to reductive amination using the appropriate aldehyde or ketone and saponified with an aqueous base such as potassium hydroxide to give 2. Compound 1 may, alternatively, be 10 simply saponified with an aqueous base such as potassium hydroxide to give 3 where R₂ is hydrogen.

Acid 2 may be reacted with an amine iii using reaction conditions well known in the art for peptide bond synthesis (see, for example, Bodanszky and Bodanszky, The Practice of Peptide CheTnigfoy, 15 Springer-Verlag, 1984; Bodanszky, Principles of Peptide Synthesis, Springer-Verlag, 1984) to give the compound Id which a compound of the formula I where X₁ and X2 together form =0, R₃ is COOR₆, and, since 2 is the starting material, R₂ is preferably alkyl, arylalkyl or cycloalkylalkyl. For example, reagents which activate the carboxyl group of 2 for reaction 20 with the amine iv include bis-(2-oxo-3-oxazolidinyl)phosphinic chloride (BOP chloride), benzotriazol-l-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate (BOP reagent), [O-(7-azabenzotriazol-l-yl)-l, 1,3,3tetramethyluronium] hexafluorophosphate (HATU), and carbodiimides such as dicyclohexylcarbodiimide (DCC) or 3-ethyl-3’25 (dimethylamino)propylcarbodiimide (EDCI) either alone or in combination with a hydroxybenzotriazole. Alternatively, the activated ester intermediate can be isolated and then treated with the appropriate a mine iv in a nonprotic solvent such as tetrahydrofaran (THF) or dimethylformamide (DMF) in the presence of a base, for example, an organic base such as sodium/potassium hexamethyldisilazide, triethylamine, diisopropylethylamine or l,8-diazabicyclo[5.4.0]undec-7ene (DBU), or an inorganic base such as sodium, potassium or cesium carbonate or sodium or potassium hydride. Alternatively, the acid halide of 2 may be prepared, for example, by reaction with thionyl chloride or oxalyl chloride, followed by subsequent reaction with amine iii to provide compound If, which is a compound of the formula I where R₃ is COOR₆, X* and X2 together form =0, and R₂ is alkyl, arylalkyl or chycloalkylalkyl.

Similar reactions as employed above for the conversion of 2 to If may be used to convert 3 to If where R₃ is COOR₆, Xj and X2 together form 10 =0, and R₂ is hydrogen.

Scheme Π

<img file="IL170873A_D0034.tif" />

As shown in Scheme Π, acid 4 where Rj and R₃ are not hydrogen and are selected such that the nitrogen. to which they are attached is nonbasic, is reduced to the aldehyde 5 by methods well know in the art (see March, Advanced Organic Chemistry, Wiley, 1985). For example, the acid 4may be converted to its corresponding ester followed by reduction with diisobutylaluminum hydride. Alternatively, the acid 4_may be reduced to the corresponding primary alcohol, for example, by treatment ־with borane/THF, LiAlH₄, or via reduction of a mixed anhydride, followed by subsequent oxidation to the aldehyde 5using Cr(VI) (e.g., pyridinium chlorochromate, “PCC”) or under Swem or Moffatt conditions (e.g., (COCl)/dimethylsulfoxide). The starting acid 4 may be obtained, for example, by saponification of ii.

Reductive amination (see Hudlicky, Reductions in Organic Chemistry, Wiley, 1984) of aldehyde 5 with amine iu in the presence of a reducing agent such as NaBH₃CN, NaBH(OAc)₃ (Ac = acetyl) or hydrogen and a palladium catalyst produces the amine compound Ig, which is a compound of the formula I where X! and \ are each hydrogen and R₂ and R₃ are each not hydrogen.

Scheme ΠΙ

<img file="IL170873A_D0035.tif" />

F?2i R3 Η

As shown in Scheme ΙΠ, reduction of the acid 4 to a primary alcohol (for example, by treatment with borane/tetrahydrofaran, LiAlH₄, or via reduction of a mixed anhydride), followed by conversion by methods well known in the art (see March, Advanced Organic Chemistry, Wiley, 1985), provides 6 which contains a leaving group such as a halide, tosylate (OTs), mesylate (OMs) or triflate (OTf). The groups R₂ and R₃ are selected such that the resulting nitrogen to which they are attached is non-basic. Compound 6 can then be converted into compound Ih, which is a compound of the formula I where X! and X2 are each hydrogen and R₂ and

Rj are each not hydrogen, by a displacement reaction with amine iii. preferably where amine iii is used in excess.

Scheme

R2 = any group as defined R₃ = acyl or thioacyl

Amide/Thioamide

<img file="IL170873A_D0036.tif" />

<img file="IL170873A_D0037.tif" />

Urea/Thiourea

<img file="IL170873A_D0038.tif" />

In A=S

RbNCO 13a

RbNCS 13b

[X1.X2 *H]

Scheme IV illustrates methods which may be used for the preparation of compounds Ij, Ik, Π, Im and In. Ij, Ik, H, Im and In are compounds of the formula I where R₂ is any group as defined, R₃ is an acyl or thioacyl group, X_x and X2 are not hydrogen, and R_x is not a primary or secondary amine. Ij, Ik, Π, Im and In have other particular substituents which are specified in this Scheme and below. The starting compound Ii can be prepared by suitable methods described in Schemes A and D.

Amide Ij can be prepared by treatment of amine compound Ii with a carboxylic acid 7 in the presence of reagents which activate the carboxyl group for reaction as described above, for example BOP reagent, HATU, and carbodiimides such as DCC or EDCI either alone or in combination with a hydroxybenztriazole. Alternatively, the acid halide 8 may be reacted with amine compound Ii in the presence of an acid scavenger such as diisopropylethylamine. The corresponding thinamide Ik can be prepared by the treatment of amide Ii (where Χ_α,Χ₂ Ψ 0) with Lawesson’s reagent as described above.

Carbamate H can be prepared by treatment of amine compound Ii with a chloroformate 9 or dicarbonate 10 in the presence of an acid scavenger such as diisopropylethylamine.

The urea Im may be prepared by treatment of amine compound Ii with either: 1) a chloroformate 9, such as phenylchloroformate, followed by reaction with an amine 11: 2) a carbamoyl chloride 12 in the presence of an acid scavenger such as diisopropylethylamine; or 3) reaction with an isocyanate 13a (where R. in. Im = H). The corresponding thiourea In may be prepared by treatment of amine compound Ii with a thioisocyanate 13b.

R_a is selected from those groups included in the definition of R₆ such that the group -C(=A)-R_a is an acyl or thioacyl group within the definition of R₃. Rj, and R_o are selected from those groups included in the definitions of R, and R_g, such that the group -C(=A)-N(R_b)(R_c) is an acyl or thioacyl group within the definition of R₃.

Scheme V

R₂ = any group as defined other than acyl

R3 = alkyl, cycioalkyl, cycloalkylalkyl, cycloalkenylalkyl, aralkyl or saturated heterocycle

<img file="IL170873A_D0039.tif" />

<img file="IL170873A_D0040.tif" />

Scheme V illustrates a method which can be used for the preparation of Ip, which is a compound of the formula I where R₂ is any group as defined other than acyl, and which is selected such that the nitrogen to which it is attached is basic, R₃ is alkyl, cycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, aralkyl, or saturated heterocycle, and X! and X2 are not hydrogen. The starting compounds 10 and Iq can be prepared by suitable methods described in Schemes A and D.

As shown in Scheme V, amine compound 10 is reacted with an aldehyde or ketone 14 under reductive amination conditions described above to give the amine Ip. Compound Ip may also be prepared by treatment of an amine compound Iq, where R₂ and R₃ are hydrogen, with t-butyl nitrite or sodium nitrite in the presence of a copper (Π) halide to give the halo-substituted compound 15. followed by displacement with amine 16 in the presence of a base such as sodium or potassium hydride or the like (see Lee et al., J. Heterocyclic Chemistry, 22,1621 (1985)).

R_d and R_e are independently selected from hydrogen, alkyl, aryl, cycloalkyl or cycloalkenyl, or together are alkylene or alkenylene completing a 3- to 8-membered saturated or unsaturated ring, such that . the group -CH(R_d)(R_e) is a group within the definition of R₃.

Scheme VI

R2 = any group as defined other than acyl R3 = aryl, heteroaryl

<img file="IL170873A_D0041.tif" />

<img file="IL170873A_D0042.tif" />

As shown in Scheme VI, when R₂ is any group as defined other than 5 acyl, and is selected such that the nitrogen to which it is attached is basic, R₃ is aryl or heteroaryl, and X! and XL, are not hydrogen, amine compound Ir may be reacted with a halophenyl or haloheteroaromatic group 17 in the presence of a palladium (0) catalyst (see J. Am. Chem. Soc., 118, 7215 (1996)) to give amine Is, which is a compound of the formula I having the 10 particular substituents described in this Scheme. The starting compound Ir can be prepared by suitable methods described in Schemes A and D.

Scheme VII

R2 = any group as defined R3 = heteroaryl

<img file="IL170873A_D0043.tif" />

As shown in Scheme VH, when R₂ is any group as defined and R₃ is a heteroaromatic group, amine compound It may be reacted, in the presence of a base if needed, with a 2-halosubstituted heteroaromatic compound 17 where together with atoms to which is is bonded, forms a

5- or 6-membered monocyclic or 10- to 12-membered bicyclic heteroaromatic group (such as forming 2-chloropyridine or 2chloropyrimidine) to give the amine lu, where lu is a compound of the formula I having the particular substituents described in this Scheme.

The starting compound It can be prepared by suitable methods described in Schemes A and D.

Scheme VIII

<img file="IL170873A_D0044.tif" />

[X1.X2* Η]

<img file="IL170873A_D0045.tif" />

As shown in Scheme VIII, thiourea compound In (where X! and X2 are 5 not hydrogen) may be reacted with the appropriate amine in the presence of bis-(2-oxo-3-oxazolidinyl)phosphinic chloride (BOP chloride) benzotriazol-l-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate (BOP-reagent), [O-(7-azabenzotriazol-l-yl)-l,l,3,3tetramethyluronium]hexafluorophosphate (HATU) and carbodiimide, such 10 as dicyclohexyl carbodiimide (DCC) or 3-ethyl3־'-(dimethylamino)propyl carbodiimide (EDCI) or diisopropyl carbodiimide (DIC) in the presence of an organic base such as triethylamine, diisopropylethylamine or dimethylaminopyridine in solvents such as dimethylformamirie, dichloromethane or tetrahydrofuran to form compound Iv, which is a compound of the formula I having the particular substituents described in this Scheme.

Alternatively, Compound In can be reacted with the appropriate amine in the presence of a mercury (Π) salt such as mercuric chloride, or by other methods known in the literature, to form Iv.

Scheme IX

<img file="IL170873A_D0046.tif" />

R_x 002 ־ alkyl» ON, C0₂ aryl

<img file="IL170873A_D0047.tif" />

<img file="IL170873A_D0048.tif" />

As shown in Scheme IX, amine Ir (where X! and Xj are not hydrogen) 5 can be reacted with diphenylcyanocarbonimidate either alone or in the presence of a base such as sodium hydride, sodium h exam ethyl di sii a zi Η e or dimethylaminopyridine in acetonitrile, tetrahydrofuran, or dimethylformami at room temperature or elevated tempera hire to form intermediate compound Iw. Compound Iw can be reacted with an amine 10 R₇R₈NH to form compound Iv, which is a compound of the formula I having the particular substituents described in this Scheme.

Scheme X

<img file="IL170873A_D0049.tif" />

<img file="IL170873A_D0050.tif" />

As shown in Scheme X, compound Ir (where X₃ and X,, are not hydrogen) can be reacted with 18 or 19 either alone or in the presence of a 5 base such as sodium hydride, sodium hexamethyl disilazide or dimethylaminopyridine in dimethyl formamide or tetrahydrofuran at room temperature or at higher temperature to form compounds lx or ly respectively, which can be reacted with an amine R₇R₈NH at room temperature or elevated temperature to form compounds Iz or Iz* -39respectively. Compound Iz is a compound of the formula I having the particular substituents described in this Scheme. Compound Iz* is a compound of the formula I having the particular substituents described in this Scheme.

Scheme XI

R₂ = aryl, heteroaryl, bicyclic-heteroaryl R₃ = H, alkyl, aryl, heteroaryl, bicyclic-heteroaryl

R2

H-N R3

As shown in Scheme XI, compounds of formula I can also be prepared from 15 by treatment with the defined amine in the presence of an acid catalyst (for example, see: Gunzenhauser et al., Helu. Chim. Acta, 71, 33 (1988)).

The present invention further provides compounds of formula ΠΙ:

H

N.

־S NR₂ r₄ wherein:

each R1, R3 and R4 is, independently, a heterocyclic group or an aryl group, optionally substituted with one or more substituents; and

R2 is hydrogen or alkyl.

A preferred compound of the present invention is of formula IV:

<img file="IL170873A_D0051.tif" />

Utility

The compounds of the present invention inhibit protein tyrosine kinases, especially Src-family kinases such as Lek, Fyn, Lyn, Src, Yes, Hck, Fgr and Blk, and are thus useful in the treatment, including prevention and therapy, of protein tyrosine kinase-associated disorders such as immunologic and oncologic disorders. The compounds inhibit also receptor tyrosine kinases including HER1 and HER2 and are therefore useful in the treatment of proliferative disorders such as psoriasis and cancer. The ability of these compounds to inhibit HER1 and other receptor kinases will also permit their use as anti-angiogenic agents to treat disorders such as cancer and diabetic retinopathy. “Protein tyrosine kinase-associated disorders” are those disorders which result from aberrant tyrosine kinase activity, and/or which are alleviated by the inhibition of one or more of these enzymes. For example, Lek inhibitors are of value in the treatment of a number of such disorders (for example, the treatment of autoimmune diseases), as Lek inhibition blocks T cell activation. The treatment of T cell mediated diseases, including inhibition of T cell activation and proliferation, is a particularly preferred embodiment of the present invention. Compounds which selectively block T cell activation and proliferation are preferred. Compounds of the present invention which block the activation of endothelial cell PTK by oxidative stress, thereby limiting surface expression of adhesion molecules that induce neutrophil binding, and which inhibit PTK necessary for neutrophil activation are useful, for example, in the treatment of ischemia and reperfusion injury.

The present invention thus provides methods for the treatment of protein tyrosine kinase-associated disorders, comprising the step of administering to a subject in need thereof at least one compound of the formula I in an amount effective therefor. Other therapeutic agents such as those described below may be employed with the inventive compounds in the present methods. In the methods of the present invention, such other therapeutic agent(s) may be administered prior to, simultaneously with or following the administration of the compound(s) of the present invention.

Use of the compounds of the present invention in treating protein tyrosine kinase-associated disorders is exemplified by, but is not limited to, treating a range of disorders such as: transplant (such as organ transplant, acute transplant or heterograft or homograft (such as is employed in bum treatment)) rejection; protection from ischemic or reperfusion injury such as ischemic or reperfusion injury incurred during organ transplantation, myocardial infarction, stroke or other causes; transplantation tolerance induction; arthritis (such as rheumatoid arthritis, psoriatic arthritis or osteoarthritis); multiple sclerosis; chronic obstructive pulmonary disease (COPD), such as emphysema; inflammatory bowel disease, including ulcerative colitis and Crohn's disease; lupus (systemic lupus erythematosis); graft vs. host disease; T-cell mediated hypersensitivity diseases, including contact hypersensitivity, delayed-type hypersensitivity, and gluten-sensitive enteropathy (Celiac disease); psoriasis; contact dermatitis (including that due to poison ivy); Hashimoto's thyroiditis; Sjogren’s syndrome; Autoimmune Hyperthyroidism, such as Graves’ Disease; Addison’s disease (autoimmune disease of the adrenal glands); Autoimmune polyglandular disease (also known as autoimmune polyglandular syndrome);

autoimmune alopecia; pernicious anemia; vitiligo; autoimmune hypopituatarism; Guillain-Barre syndrome; other autnimmima diseases; cancers, including cancers where Lek or other Src-family kinases such as Src are activated or overexpressed, such as colon carcinoma and thymoma_;and cancers where Src-family kinase activity facilitates tumor growth or survival; glomerulonephritis; serum sickness; uticaria; allergic diseases such as respiratory allergies (asthma, hayfever, allergic rhinitis) or skin allergies; scleracierma; mycosis fungoides; acute inflammatory responses (such sis acute respiratory distress syndrome and ishchemia/reperfasion injury); dermatomyositis; alopecia areata; chronic actinic dermatitis; eczema; Behcet’s disease; Pustulosis palmopl anteris; Pyoderma gangrenum; Sezary’s syndrome; atopic dermatitis; systemic schlerosis; and morphea. The present invention also provides a method for treating the aforementioned disorders such as atopic dermatitis by administration of any compound capable of inhibiting protein tyrosine kinase

Src-family kinases other than Lek, such as Hck and Fgr, are important in the Fc gamma receptor responses of monocytes and macrophages. Compounds of the present invention inhibit the Fc gamma dependent production of TNF alpha in the monocyte cell lino THP-1 that does not express Lek. The ability to inhibit Fc gamma receptor dependent monocyte and macrophage responses results in additional antiinflammatory activity for the present compounds beyond their effects on T cells. This activity is especially of value, for example, in the treatment of inflammatory diseases such as arthritis or inflammatory bowel disease. In particular, the present compounds are of value for the treatment of autoimmune glomerulonephritis and other instances of glomerulonephritis induced by deposition of immune, complexes in the kidney that trigger Fc gamma receptor responses leading to kidney damage.

In addition, Src family kinases other than Lek, such as Lyn and Src, are important in the Fc epsilon receptor induced degranulation of mast cells and basophils that plays an important role in asthma, allergic rhinitis, and other allergic disease. Fc epsilon receptors are stimulated by IgE-antigen complexes. Compounds of the present invention inhibit the Fc epsilon induced degranulation responses, including in the basophil cell line RBL that does not express Lek. The ability to inhibit Fc epsilon receptor dependent mast cell and basophil responses results in additional anti-inflammatory activity for the present compounds beyond their effect on T cells. In particular, the present compounds are of value for the treatment of asthma, allergic rhinitis, and other instances of allergic disease.

The combined activity of the present compounds towards monocytes, macrophages, T cells, etc. may be of value in the treatment of any of the aforementioned disorders.

In a particular embodiment, the compounds of the present invention are useful for the treatment of the aforementioned exemplary disorders irrespective of their etiology, for example, for the treatment of transplant rejection, rheumatoid arthritis, multiple sclerosis, chronic obstructive pulmonary disease, inflammatory bowel disease, lupus, graft v. host disease, T-cell mediated hypersensitivity disease, psoriasis, Hashimoto’s thyroiditis, Guillain-Barre syndrome, cancer, contact dermatitis, allergic disease such as allergic rhinitis, asthma, ischemic or reperfusion injury, or atopic dermatitis whether or not associated with PTK.

By virtue of their ability to inhibit HER1 and HER2 kinases, compounds of the present invention can also be used for the treatment of proliferative diseases, including psoriasis and cancer. The HER1 receptor kinase has been shown to be expressed and activated in many solid tumors including non-small cell lung, colorectal, and breast cancer.

Similarly, the HER2 receptor kinase has been shown to be overexpressed in breast, ovarian, lung and gastric cancer. Monoclonal antibodies that, downregulate the abundance of the HER2 receptor or inhibit signaling by the HER1 receptor have shown anti-tumor efficacy in preclincal and clinical studies. It is therefore expected that inhibitors of the HER1 and HER2 kinases will have efficacy in the treatment of tumors that depend on signaling from either of the two receptors. These compounds are expected to have efficacy either as single agent or in combination ־with other chemotherapeutic agents such as placlitaxel (Taxol), doxorubicin hydrochloride (adriamycin), and cisplatin (Platinol). See the following documents and references cited therein: Cobleigh, M. A., Vogel, C. L., Tripathy, D., Robert, N. J., Scholl, S., Fehrenbacher, L., Wolter, J. M., Paton, V., Shak, S., Lieberman, G., and Slamon, D. J., “Multinational study of the efficacy and safety of humanized anti-HER2 monoclonal antibody in women who have HER2-overexpressing metastatic breast cancer that has progressed after chemotherapy for metastatic disease”, J. of Clin. Oncol. 17(9), p. 2639-2648 (1999); Baselga, J., Pfister, D., Cooper,

M. R., Cohen, R., Burtness, B., Bos, M., D’Andrea, G., Seidman, A., Norton, L., Gunnett, K., Falcey, J., Anderson, V., Waksal, H., and

Mendelsohn, J., “Phase I studies of anti-epidermal growth factor receptor chimeric antibody C225 alone and in combination with cisplatin”, J. Clin Oncol. 18(4), p. 904-914 (2000).

The compounds of the present invention are useful for the treatment of cancers such as chronic myelogenous leukemia (CML), gastrointestinal stromal tumor (GIST), small cell lung cancer (SCLC), non-small cell lung cancer (NSCLC), ovarian cancer, melanoma, mastocytosis, germ cell tumors, acute myelogenous leukemia (AML), pediatric sarcomas, breast cancer, colorectal cancer, pancreatic cancer, prostate cancer and others known to be associated with protein tyrosine kinases such as, for example, SRC, BCR-ABL and c-KIT. The compounds of the present invention are also useful in the treatment of cancers that are sensitive to and resistant to chemotherapeutic agents that target

BCR-ABL and c־KIT, such as, for example, Gleevec® (STI-571).

The present invention also provides pharmaceutical compositions comprising at least one of the compounds of the formula I capable of treating a protein tyrosine kinase-associated disorder in an amount effective therefor, and a pharmaceutically acceptable vehicle or diluent. The compositions of the present invention may contain other therapeutic agents as described below, and may be formulated, for example, by employing conventional solid or liquid vehicles or diluents, as well as pharmaceutical additives of a type appropriate to the mode of desired administration (for example, excipients, binders, preservatives, stabilizers, flavors, etc.) according to techniques such as those well known in the art of pharmaceutical formulation.

The compounds of the formula I may be administered by any suitable means, for example, orally, such as in the form of tablets, capsules, granules or powders; sublingually; buccally; parenterally, such as by subcutaneous, intravenous, intramuscular, or intrastemal injection or infusion techniques (e.g., as sterile injectable aqueous or non-aqueous solutions or suspensions); nasally such as by inhalation spray; topically, such as in the form of a cream or ointment; or rectally such as in the form of suppositories; in dosage unit formulations containing non-toxic, pharmaceutically acceptable vehicles or diluents. The present compounds may, for example, be administered in a form suitable for immediate release or extended release. Immediate release or extended release may be achieved by the use of suitable pharmaceutical compositions comprising the present compounds, or, particularly in the case of extended release, by the use of devices such as subcutaneous implants or osmotic pumps. The present compounds may also be administered liposomally.

Exemplary compositions for oral administration include suspensions which may contain, for example, microciystalline cellulose for imparting bulk, alginic acid or sodium alginate as a suspending agent, methylcellulose as a viscosity enhancer, and sweeteners or flavoring 5 agents such as those known in the art; and immediate release tablets which may contain, for example, microcrystalline cellulose, dicalcium phosphate, starch, magnesium stearate and/or lactose and/or other excipients, binders, extenders, disintegrants, diluents and lubricants such as those known in the art. The present compounds may also be delivered 10 through the oral cavity by sublingual and/or buccal administration.

Molded tablets, compressed tablets or freeze-dried tablets are exemplaiy forms which may be used. Exemplary compositions include those formulating the present compound(s) with fast dissolving diluents such as mannitol, lactose, sucrose and/or cyclodextrins. Also included in such 15 formulations may be high molecular weight excipients such as celluloses (avicel) or polyethylene glycols (PEG). Such formulations may also include an excipient to aid mucosal adhesion such as hydroxy propyl cellulose (HPC), hydroxy propyl methyl cellulose (HPMC), sodium carboxy methyl cellulose (SCMC), maleic anhydride copolymer (e.g., Gantrez), and 20 agents to control release such as polyacrylic copolymer (e.g., Carbopol 934). Lubricants, glidants, flavors, coloring agents and stabilizers may also be added for ease of fabrication and use.

Exemplaiy compositions for nasal aerosol or inhalation administration include solutions in saline which may contain, for 25 example, benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, and/or other solubilizing or dispersing agents such as those known in the art.

Exemplary compositions for parenteral administration include injectable solutions or suspensions which may contain, for example, 30 suitable non-toxic, parenterally acceptable diluents or solvents, such as

I mannitol, 1,3-butanediol, water, Ringer's solution, an isotonic sodium chloride solution, or other suitable dispersing or wetting and suspending agents, including synthetic mono- or diglycerides, and fatty acids, including oleic acid.

Exemplary compositions for rectal administration include suppositories which may contain, for example, a suitable non-irritating excipient, such as cocoa butter, synthetic glyceride esters or polyethylene glycols, which are solid at ordinary temperatures, but liquify and/or dissolve in the rectal cavity to release the drug.

Exemplary compositions for topical administration include a topical carrier such as Plastibase (mineral oil gelled with polyethylene).

The effective amount of a compound of the present invention may be determined by one of ordinary skill in the art, and includes exemplary dosage amounts for an adult human of from about 0.1 to 100 mg/kg of 15 body weight of active compound per day, which may be administered in a single dose or in the form of individual divided doses, such as from 1 to 4 times per day. It will be understood that the specific dose level and frequency of dosage for any particular subject may be varied and will depend upon a variety of factors including the activity of the specific 20 compound employed, the metabolic stability and length of action of that compound, the species, age, body weight, general health, sex and diet of the subject, the mode and time of administration, rate of excretion, drug combination, and severity of the particular condition. Preferred subjects for treatment include animals, most preferably mammalian species such 25 as humans, and domestic animals such as dogs, cats and the like, subject to protein tyrosine kinase-associated disorders.

When administered intravenously, the compounds of the present invention, including compounds of formula HI and IV, are preferably administered using the formulations of the invention. Generally, the compounds of the present invention, 30 including compounds of formula ΙΠ and IV, are administered by IV infusion over a period of from about 10 minutes to about 3 hours, preferably about 30 minutes to about 2 hours, more preferably about 45 minutes to 90 minutes, and most preferably about 1 hour. Typically, the compounds are administered intravenously in a dose of from about 0.5 mg/m² to 65 mg/m², preferably about 1 mg/m² to 50 mg/m², more preferably about 2.5 mg/m² to 30 mg/m², and most preferably about 25 mg/m².

One of ordinary skill in the art would readily know how to convert doses from mg/kg to mg/m2 given either or both the height and or weight of the patient (See, e.g., http://www.fda.gov/cder/cancer/ani-malframe.html.

As discussed above, compounds of the present invention, including compounds of formulae HI and IV, can be administered orally, intravenously, or both. In particular, the methods of the invention encompass dosing protocols such as once a day for 2 to 10 days, preferably every 3 to 9 days, more preferably every 4 to 8 days and most preferably every 5 days. In one embodiment there is a period of 3 days to 5 weeks, preferably 4 days to 4 weeks, more preferably 5 days to 3 weeks, and most preferably 1 week to 2 weeks, in between cycles where there is no treatment. Tn another embodiment the compounds of the present invention, including compounds of formulae HI or TV, can be administered orally, intravenously, or both, once a day for 3 days, with a period of preferably 1 week to 3 weeks in between cycles where there is no treatment. In yet another embodiment the compounds of the present invention, including compounds of formulae HI or IV, can be administered orally, intravenously, or both, once a day for 5 days, with a period of preferably 1 week to 3 weeks in between cycles where there is no treatment.

In one preferred embodiment the treatment cycle for administration of the compounds of the present invention, including compounds of formulae HI or IV, is once daily for 5 consecutive days and the period between treatment cycles is from 2 to 10 days, preferably one week. In one embodiment, a compound of the present invention, for example, a compound of formula HI or formula IV, is administered once daily for 5 consecutive days, followed by 2 days when there is no treatment.

The compounds of the present invention, including compounds of formulae HI or IV, can also be administered orally, intravenously, or both once every 1 to 10 weeks, preferably every-2 to 8 weeks, more preferably every 3 to 6 weeks, and even more preferably every 3 weeks.

In another method of the invention, the compounds of the present invention, including compounds of formulae DI or IV, are administered in a 28 day cycle wherein the compounds are intravenously administered on days 1, 7, and 14 and orally administered on day 21. Alternatively, the compounds of the present invention, including compounds of formulae DI or IV, are administered in a 28 day cycle wherein the compound of formulae I and Π are oraDy administered on day 1 and intravenously administered on days 7,14, and 28.

¹⁰ According to the methods of the invention, the compounds of the present invention, including compounds of formulae ΙΠ or IV, are administered until the patient shows a response, for example, a reduction in tumor size, or until dose limiting toxicity is reached.

The compounds of the present invention may be employed alone or in combination with each other and/or other suitable therapeutic agents useful in the treatment of protein tyrosine kinase-associated disorder« such as PTK inhibitors other than those of the present invention, antiinflammatories, antiproliferatives, chemotherapeutic agents, immunosuppressants, anticancer agents and cytotoxic agents.

Exemplary such other therapeutic agents include the foUowing:

cyclosporins (e.g., cyclosporin A), CTLA4-Ig, antibodies such as antiICAM-3, anti-IL-2 receptor (Anti-Tac), anti-CD45RB, anti-CD2, anti-CD3 (OKT-3), anti-CD4, anti-CD80, anti-CD86, monoclonal antibody OKT3, agents blocking the interaction between CD40 and gp39, such as antibodies specific for CD40 and/or gp39 (i.e., CD154), fusion protoin.« constructed from CD40 and gp39 (CD40Ig and CD8gp39), inhibitor.«, such as nuclear translocation inhibitors, of NF-kappa B function, such as deoxyspergualin (DSG), non-steroidal antiinflammatory drugs (NSAIDs) such as ibuprofen, steroids such as prednisone or dexamethasone, gold compounds, antiproliferative agents such as methotrexate, FK506 (tacrolimus, Prograf), mycophenolate mofetil, cytotoxic drugs such as -51azathiprine and cyclophosphamide, TNF-a inhibitors such as tenidap, anti-TNF antibodies or soluble TNF receptor such as etanercept (Enbrel), rapamycin (sirolimus or Rapamune), leflunimide (Arava), and cyclooxygenase-2 (COX-2) inhibitors such as celecoxib (Celebrex) and rofecoxib (Vioxx), or derivatives thereof, and the PTK inhibitors disclosed in the following U.S. Patent Applications, incorporated herein by reference in their entirety: Serial No. 60/056,770, filed 8/25/97 (Attorney Docket No. QA202*), Serial No. 60/069,159, filed 12/9/97 (Attorney Docket No. QA202a*), Serial No. 09/097,338, filed 6/15/98 (Attorney Docket No.

QA202b), Serial No. 60/056,797, filed 8/25/97 (Attorney Docket No.

QA205*), Serial No. 09/094,797, filed 6/15/98 (Attorney Docket No. QA205a), Serial No. 60/065,042, filed 11/10/97 (Attorney Docket No. QA207*), Serial No. 09/173,413, filed 10/15/98, (Attorney Docket No. QA207a), Serial No. 60,076,789, filed 3/4/98 (Attorney Docket No.

QA208*), and Serial No. 09,262,525, filed 3/4/99 (Attorney Docket No.

QA208a). See the following documents and references cited therein: Hollenbaugh, D., Douthwright, J., McDonald, V., and Aruffo, A., “Cleavable CD40Ig fusion proteins and the binding to sgp39”, J. Immunol. Methods (Netherlands), 188(1), p. 1-7 (Dec 15 1995); Hollenbaugh, D.,

Grosmaire, L.S., Kullas, C.D., Chalupny, N.J., Braesch-Andersen, S., Noelle, R.J., Stamenkovic, I., Ledbetter, J A., and Arufib, A., “The human T cell antigen gp39, a member of the TNF gene family, is a ligand for the CD40 receptor: expression of a soluble form of gp39 with B cell costimulatory activity״, EMBO J (England), 11(12), p 4313-4321 (Dec 1992);

and Moreland, L.W. et al., “Treatment of rheumatoid arthritis with a recombinant human tumor necrosis factor receptor (p75)-Fc fusion protein, Neu; England J. of Medicine, 337(3), p. 141-147 (1997).

Exemplary classes of anti-cancer agents and cytotoxic agents include, but are not limited to: alkylating agents, such as nitrogen 30 mustards, alkyl sulfonates, nitrosoureas, ethylenimines, and triazenes; antimetabolites, such as folate antagonists, purine analogues, and pyrimidine analogues; antibiotics, such as anthracyclines, bleomycins, mitomycin, dactinomycin, and plicamycin; enzymes, such as L-asparaginase; famesyl-protein transferase inhibitors; hormonal agents, such as glucocorticoids, estrogens/antiestrogens, androgens/antiandrogens, progestins, and luteinizing hormone-releasing hormone anatagonists, octreotide acetate; microtubule-disruptor agents, such as ecteinascidins or their analogs and derivatives; microtubule-stabilizing agents such as paclitaxel (Taxol®), docetaxel (Taxotere®), and epothilones A-F or their analogs or derivatives; plant-derived products, such as vinca alkaloids, epipodophyllotoxins, taxanes; and topoisomerase inhibitors; prenyl-protein transferase inhibitors; and miscellaneous agents such as, hydroxyurea, procarbazine, mitotane, hexamethylmelamine, platinum coordination complexes such as cisplatin and carboplatin; and other agents used as anti-cancer and cytotoxic agents such as biological response modifiers, growth factors; immune modulators, and monoclonal antibodies. The compounds of the invention may also be used in conjunction with radiation therapy.

Representative examples of these classes of anti-cancer and cytotoxic agents include, but are not limited to, mechlorethamine hydrochlordie, cyclophosphamide, chlorambucil, melphalan, ifosfamide, busulfan, carmustin, lomustine, semustine, streptozocin, thiotepa, dacarbazine, methotrexate, thioguanine, mercaptopurihe, fludarabine, pentastatin, cladribin, cytarabine, fluorouracil, doxorubicin hydrochloride, daunorubicin, idarubicin, bleomycin sulfate, mitomycin C, actinomycin D, safracins, saframycins, quinocarcins, discodeimolides, vincristine, vinblastine, vinorelbine tartrate, etoposide, teniposide, paclitaxel, tamoxifen, estramustine, estramustine phosphate sodium, flutamide, buserelin, leuprolide, pteridines, diyneses, levamisole, aflacon, interferon, interleukins, aldesleukin, filgrastim, sargramostim, rituximab, BCG, tretinoin, irinotecan hydrochloride, betamethosone, gemcitabine hydrochloride, altretamine, and topoteca and any analogs or derivatives thereof.

Preferred members of these classes include, but are not limited to paclitaxel, cisplatin, carboplatin, doxorubicin, ra-rminnmynin daunorubicin, aminopterin, methotrexate, methopterin, mitomycin C, ecteinascidin 743, porfiromycin, 5-fluorouracil, 6-mercaptopurine, gemcitabine, cytosine arabinoside, podophyllotoxin or podophyllotoxin 10 derivatives such as etoposide, etoposide phosphate or teniposide, melphalan, vinblastine, vincristine, leurosidine, vindesine, and leurosine.

Examples of anti-cancer and other cytotoxic agents include the following: epothilone derivatives as found in U.S. Serial No.

09/506,481 filed February 17, 2000 (Attorney Docket No. LD186); German Patent No. 4138042.8; WO 97/19086, WO 98/22461, WO 98/25929, WO 98/38192, WO 99/01124, WO 99/02224, WO 99/02514, WO 99/03848, WO 99/07692, WO 99/27890, WO 99/28324, WO 99/43653, WO 99/54330, WO 99/54318, WO

99/54319, WO 99/65913, WO 99/67252, WO 99/67253, and WO 00/00485; cyclin dependent kinase inhibitors as found in WO 99/24416; and prenyl-protein transferase inhibitors as found in WO 97/30992 and WO 98/54966.

The above other therapeutic agents, when employed in combination with the compounds of the present invention, may be used, for example, in those amounts indicated in the Physicians' Desk Reference (PDR) or as otherwise determined by one of ordinary skill in the art.

The following assays can be employed in ascertaining the degree of activity of a compound (“test compound”) as a PTK inhibitor

Compounds described in the following Examples have been tested in one or more of these assays, and have shown activity.

Enzyme Assay Using Lek, Fyn, Lyn, Hck, Fgr, Src, Blk or Yes

The following assay has been carried out using the protein tyrosine kinases Lek, Fyn, Lyn, Hck, Fgr, Src, Blk and Yes.

The protein tyrosine kinase of interest is incubated in kinase buffer (20 mM MOPS, pH7, 10 mM MgCl₂) in the presence of the test compound. The reaction is initiated by the addition of substrates to the final concentration of 1 μΜ ATP, 3.3 μΟι/πύ [33P] gamma-ATP, and 0.1 mg/ml acid denatured enolase (prepared as described in Cooper, J״A., Esch, F.S., Taylor, S.S., and Hunter, T., “Phosphorylation sites in enolase and lactate dehydrogenase utilized by tyrosine protein kinases in vivo and in vitro”, J. Biol. Chem., 259, 7835-7841 (1984)). The reaction is stopped after 10 minutes by the addition of 10% trichloroacetic acid, 100 mM sodium pyrophosphate followed by 2 mg/ml bovine serum albumin. The labeled enolase protein substrate is precipitated at 4 degrees, harvested onto Packard Unifilter plates and counted in a Topcount scintillation counter to ascertain the protein tyrosine kinase inhibitory activity of the test compound (activity inversely proportional to the amount of labeled enolase protein obtained). The exact concentration of reagents and the amount of label can be varied as needed.

This assay is advantageous as it employs an exogenous substrate (enolase) for more accurate enzyme kinetics, and can be conducted in a 96well format that is readily automated. In addition, His-tagged protein tyrosine kinases (described below) offer much higher production yields and purity relative to GST-protein tyrosine kinase fusion protein.

The protein tyrosine kinase may be obtained from commercial sources or by recombinant methods described herewith. For the preparation of recombinant Lek, human Lek was prepared as a His-tagged fusion protein using the Life Technologies (Gibco) baculovirus vector pFastBac Hta (commercially available) in insect cells. A cDNA encoding human Lek isolated by PCR (polymerase chain reaction) was inserted into the vector and the protein was expressed using the methods described by the manufacturer. The Lek was purified by affinity chromatography. For the production of Lek in insect cells using baculovirus, see Spana, C., O’Rourke, E.C., Bolen, J.B., and Fargnoli, J., “Analysis of the tyrosine kinase p561ck expressed as a glutathione S-transferase protein in Spodoptera frugiperda cells,” Protein expression and purification, Vol. 4, p. 390-397 (1993). Similar methods may be used for the recombinant production of other S-m-famfly kinases.

Enzyme Assay Using HER1 or HER2

Compounds of interest were assayed in a kinase buffer that contained 20 mM Tris.HCl, pH 7.5,10 mM MnCl₂, 0.5 mM dithiothreitol, bovine serum albumin at 0.1 mg/ml, poly(glu/tyr, 4:1) at 0.1 mg/ml, ΙμΜ ATP, and 4 gCi/ml [gamma-³³P]ATP. P01y(glu/tyr, 4:1) is a synthetic polymer that serves as a phosphoryl acceptor and is purchased from Sigma Chemicals. The kinase reaction is initiated by the addition of enzyme and the reaction mixtures were incubated at 26°C for 1 h. The reaction is terminated by־ the addition of EDTA to 50 mM and proteins are precipitated by the addition of trichloroacetic acid to 5%. The precipitated proteins are recovered by filtration onto Packard Unifilter plates and the amount of radioactivity incorporated is measured in a Topcount scintillation counter.

For the preparation of recombinant HER1, the cytoplasmic sequence of the receptor were expressed in insect cells as a GST fusion protein, which was purified by affinity chromatography as described above for Lek. The cytoplasmic sequence of HER2 was subcloned into the baculovirus expression vector pBlueBac4 (Invitrogen) and was expressed as an untagged protein in insect cells. The recombinant protein was partially purified by ion-exchange chromatography.

^QeU assays

3. ^&lt;v~~cellular tyrosine phosphorylation

Jurkat T cells are incubated with the test compound and then stimulated by the addition of antibody to CD3 (monoclonal antibody G194). Cells are lysed after 4 minutes or at another desired time by the addition of a lysis buffer containing NP-40 detergent. Phosphorylation of 10 proteins is detected by anti-phosphotyrosine immunoblotting. Detection of phosphorylation of specific proteins of interest such as ZAP-70 is detected ί by immunoprecipitation with anti-ZAP-70 antibody followed by antiphosphotyrosine immunoblotting. Such procedures are described in Schieven, G.L., Mittler, R.S., Nadler, S.G., Kirihara, J.M., Bolen, J.B.,

Kanner, S.B., and Ledbetter, J.A., “ZAP-70 tyrosine kinase, CD45 and T cell receptor involvement in UV and H₂O₂ induced T cell signal transduction”, J. Biol. Chem., 269, 20718-20726 (1994), and the references incorporated therein. The Lek inhibitors inhibit the tyrosine phosphorylation of cellular proteins induced by anti-CD3 antibodies.

For the preparation of G19-4, see Hansen, J A., Martin, P.J.,

Beatty, P.G., Clark, E.A., and Ledbetter, J.A., “Human T lymphocyte cell surface molecules defined by the workshop monoclonal antibodies,” in Leukocyte Typing I, A. Bernard, J. Boumsell, J. Dausett, C. Milstein, and

S. Schlossman, eds. (New York: Springer Verlag), p. 195-212 (1984); and

Ledbetter, J.A., June, C.H., Rabinovitch, P.S., Grossman, A., Tsu, T.T., and Imboden, J.B., “Signal transduction through CD4 receptors: stimulatoiy vs. inhibitory activity is regulated by CD4 proximity to the CD3/T cell receptor”, Eur. J. Immunol., 18, 525 (1988).

3. Calcium assay

Lek inhibitors block calcium mobilization in T cells stimulated with anti-CD3 antibodies. Cells are loaded with the calcium indicator dye indo1, treated with anti-CD3 antibody such as the monoclonal antibody G19-4, and calcium mobilization is measured using flow cytometry by recording changes in the blue/violet indo-1 ratio as described in Schieven, G.L., Mittler, R.S., Nadler, S.G., Kirihara, J.M., Bolen, J.B., Kanner, S.B., and Ledbetter, J.A., “ZAP-70 tyrosine kinase, CD45 and T cell receptor involvement in UV and H₂O₂ induced T cell signal transduction”, J. Biol. Chem., 269, 20718-20726 (1994), and the references incorporated therein.

3. Proliferation assays

Lek inhibitors inhibit the proliferation of normal human peripheral blood T cells stimulated to grow with anti-CD3 plus anti-CD28 antibodies. A 96 well plate is coated with a monoclonal antibody to CD3 (such as G194), the antibody is allowed to bind, and then the plate is washed. The antibody bound to the plate serves to stimulate the cells. Normal human peripheral blood T cells are added to the wells along with test compound plus anti-CD28 antibody to provide co-stimulation. After a desired period of time (e.g., 3 days), the [3H]-thymidine is added to the cells, and after further incubation to allow incorporation of the label into newly synthesized DNA, the cells are harvested and counted in a scintillation counter to measure cell proliferation.

The following Examples illustrate embodiments of the present invention, and are not intended to limit the scope of the claims. Abbreviations employed in the Examples are defined below. Compounds of the Examples are identified by the example and step in which they are prepared (for example, “1A” denotes the title compound of step A of Example 1), or by the example only where the compound is the title compound of the example (for example, “2” denotes the title compound of Example 2).

Abbreviations aq. = aqueous cone. = concentrated

DMSO = dimethylsulfoxide

EtOAc = ethyl acetate

Et₂O = diethyl ether h = hours

HATH = N-[dimethylamino-lH-l,2,3-triazolo-[4,5-b]pyridin-l-yl methylene]-N־methyl methanaminium hexafluorophosphate Noxide

MeOH = methanol

MOPS = 4-morpholine-propanesulfonic acid

MS = mass spectrometry

Ret Time = retention time

RT = room temperature satd. = saturated

TFA = trifluoroacetic acid

THF = tetrahydrofuran

DMF= N,N-dimethylformamide

Example

Preparation of [52,4.6)]־1־-Trimethylphenvl)amin01carbonyn4־-methvl-2thiazolyll carbamic acid, 1,1-dimethvl ethyl ester

<img file="IL170873A_D0052.tif" />

3. Ethyl-2-tert-butoxycarbonvloxvamino-4-methyl-thiazole-5-carboxvlate A suspension of ethyl-2-amino-4-methyl-thiazole-5-carboxylate (18.6 g, 100 mmol), di-t-butyldicarbonate (26.2 g, 120 mmol) and 4dimethylaminopyridine (800 mg, 6.55 mmol) in dry tetrahydrofuran (300 mL) was stirred under nitrogen for 18 h. The solvent was evaporated in vacuo. The residue was suspended in dichloromethane (1 L) and filtered through a pad of celite. The filtrate was washed with 1N aqueous HC1 solution (300 mL, 2x), water and brine, dried (MgSO₄), and concentrated in vacuo. The residue was triturated with hexanes. The solid was filtered and dried in vacuo to obtain the title compound (20 g, 72%) as a tan solid.

B. 2-tert-butoxvcarbonvloxyamino-4-methyl-thiazole-5-carboxvlic acid A stirred solution of ethyl-2-ieri-butoxycarbonyloxy amino-4-methylthiazole-5-carboxylate (10 g, 34.95 mmol) in tetrahydrofuran-ethanol (250 mL, 2:3) was treated with a 6N KOH solution (250 mL). The mixture was heated to 55°C overnight. The solution was cooled to 0°C and acidified with coned. HC1 to pH 1. The solvent was evaporated in vacuo. The residue was washed with water, diethyl ether, dried in vacuo over anhydrous phosphorous pentoxide to obtain the title acid (6 g, 89%) as a white solid.

C. 2-fer^-butoxycarbonvloxyamino-4-methvl-thiazole-5-carboxvlic acid chloride

A 2 M solution of oxalyl chloride in dichloromethane (22.5 mL, 45 mmol) was added dropwise to a stirred suspension of 2-tert5 butoxycarbonyloxyamino-4-methyl-thiazole-5-carboxylic acid (10 g, 38.72 mmol) in dichloromethane (150 mL) and Ν,Ν-dimethyl formamide (150 pL) at 0°C. The suspension gradually became homogenous after addition was complete. The solution was allowed to warm to room temperature and stirred at rt for 1.5 h. The solvent was evaporated in vacuo and the residue was coevaporated with toluene (300 mL, 2x) and then dried in vacuo to obtain the title acid chloride (10.7 g, 99%) as a tan solid.

D. 1־5-1־ i(2.4,6-Trimethvlphenyl)amino! carbonyl! -4-methvl-2thiazolyl! carbamic acid. 1.1-dimethvlethvl ester

2,4,6-Tnmethyl aniline (6.3 mL, 38.66 mmol) was added dropwise to a stirred solution of 2-ieri-butoxycarbonyloxyamino-4-methyl-thiazole-5carboxylic acid chloride (10.7 g, 38.66 mmol) in dichloromethane (150 mL) at 0°C. After 20 min, diisopropylethylamine (8.8 mL, 44.88 mmol) was added dropwise. The solution was allowed to warm to rt and stirred for an additional 2 h. The solvent was evaporated in vacuo. The residue was suspended in EtOAc (700 mL), washed with 1 N aq. HC1 solution (300 mL, 2x), water, and brine; dried (MgSO₄), filtered and concentrated. The residue was triturated with ether to obtain the title compound (12.5 g, 86%) as a tan solid.

Example

Preparation of 2-Amino-N-(2A6-trimethvlphenvl)-4-methvl-5thiazolecarboxamide

<img file="IL170873A_D0053.tif" />

A solution of [5-[[(2,4,6-Trimethylphenyl)amino]carbonyl]-4-methyl-2thiazolyl]carbamic acid, 1,1-dimethylethyl ester (10 g, 26.63 mmol) in trifluoroacetic acid (100 mL) was stirred at rt for 3 h. The solution was concentrated under reduced pressure and the residue was diluted with EtOAc (700 mL), washed with 5% aq. KHCO₃ solution (400 mL, 2x), water, and brine; dried (MgSOJ, filtered and concentrated. The residue was washed with ether (200 mL) and acetonitrile (100 mL) to obtain the title compound (6.7 g, 91%) as a white solid.

Example

Preparation of i5־rr(2.4.6-Trimethylphenyl)aminolcarbonvn-4trifluoromethvl-2-thiazolvllcarbamic acid. 1.1-dimethvlethvl ester

<img file="IL170873A_D0054.tif" />

3. Ethvl-2-/er/-butoxycarbonvloxvamino־4־trifluoromethvl־thiazole-5־ carboxylate

A suspension of ethyl-2-amino-4-trifluoromethyl-thiazole-5-carboxylate (5.05 g, 21.02 mmol), di-t-butyldicarbonate (4.82 g, 22.07 mmol) and 4־ dimethylaminopyridine (260 mg, 2.1 mmol) in dichloromethane (209 mL) was stirred under nitrogen for 1.5 h. The solvent was evaporated in vacuo. The residue was chromatographed on a silica gel column. Elution with 5%

EtOAc in hexanes, followed by 15% EtOAc in hexanes afforded the title compound (6.57 g, 92%) as a white solid.

B.

acid

A stirred solution of ethyl-2-teri-butoxycarbonyloxyamino-4trifluoromethyl-thiazole-5-carboxylate (6.5 g, 19.1 mmol) in methanol (100 mL) was treated with a IN aq. NaOH solution (573 mL). The mixture was stirred at rt overnight. ׳The solution was cooled to 0°C and acidified with a 10 6 M aq. HC1 solution to pH 1 and extracted with chloroform (150 mL, 6x).

The chloroform extracts were combined, dried (Na₂SO₄), filtered and concentrated under reduced pressure and in vacuo to obtain the title acid (5.75 g, 96%) as a white solid.

C. i5-ir(2.4.6-Trimethvlphenvl)amino1carbonvll-4-trifluoromethvl-2thiazolyl־!carbamic acid, 1,1-dimethylethyl ester

4-Methylmorpholine (40 pL, 0.39 mmol) was added to a mixture of 2-tertbutoxycarbonyloxyamino-4-trifluoromethyl-thiazole-5-carboxylic acid (100 mg, 0.32 mmol), 2,4,6-trimethylaniline (45 |1L, 0.32 mmol), and benzotriazol-l-yloxy-tris-(dimethylamino)phosphonium hexafluorophosphate (BOP reagent, 380 mg, 0.4 mmol) in DMF (2 mL) The solution was stirred at rt for 72 h, diluted with dichloromethane and washed with 0.25 M aq. KHSO₄ solution followed by satd. Aq. KHCO₃solution. The dichloromethane extract was separated, dried (Na₂SO₄), filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 5% EtOAc in hexanes followed by 10% EtOAc in hexanes to obtain the title compound (90 mg, 65%) as a white solid.

Example 4

Preparation thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0055.tif" />

A solution of [5-[[(2,4,6-Trimethylphenyl)amino]carbonyl]-4trifluoromethyl-2-thiazolyl] carbamic acid, 1,1-dimethylethyl ester (120 mg, 0.28 mmol) in trifluoroacetic acid (5 mL) was stirred at 0°C for 1 h. The solution was concentrated under reduced pressure and the residue was coevaporated with ether to obtain a yellow solid which was triturated 10 with hexanes to obtain the title compound (96 mg, 76%) as a light yellow solid.

Example

Preparation of i5-[r(2,4,6-Trimethvlphenvl)amino1carbonvl1-4-phenvl2־15 thiazolyllcarbamic acid, l.l-dimethvlethyl ester .

<img file="IL170873A_D0056.tif" />

3. Ethvl-2-tert-butoxvcarbonyloxyamino-4-phenvl-thiazole-5-carboxylate

Compound 5A was prepared by an analogous method as that of 3A, except 20 using ethyl-2-amino-4-phenyl-thiazole-5-carboxylate to give the title compound 5A as a white solid (90.5%).

B, 2-7¹er/-butoxvcarbonvloxyamino-4-phenvl-tl1iazoIe-5-carboxvlic acid

Compound 5B was prepared by an analogous method as that of 3B, except using 5A to give the title compound 5B as a white solid (99%).

C. 2-7V/-butoxvcarbonvloxvamino-4-phenvl-thiazole-5-carboxvlic acid chloride

Compound 5C was prepared by an analogous method as that of IC, except using 5B to give the title compound 5C as a white solid (90%).

D.

thiazolyl!carbamic acid, 1.1-dimethvl ethyl ester

Compound 5D was prepared by an analogous method as that of ID, except using 5C to give the title compound 5D as a light yellow solid (93%).

’ Example 6

Preparation of 2-Amino-N-(2,4.6-trimethvlphenyl)-4-phenvl-5־ thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0057.tif" />

Compound 6 was prepared by an analogous method as that of 4, except using 5D to give the title compound 6 as a white solid (68%).

Example

Preparation acid, 1.1-dimethylethvl ester

Compound was prepared by an analogous method as that of ID, except using aniline in place of 2,4,6-trimethylaniline and triethylamine in place of diisopropylethylamine to give the title compound 7 as an off-white solid (76%).

<img file="IL170873A_D0058.tif" />

Example Preparation trifluoroacetate (1:1) o

HgC

Compound 8 was prepared by an analogous method as that of 4, except using 7 to give the title compound 8 as a white solid (68%).

Example

Preparation of [5- [ [(2.4-Di chlorophen vDaminolcarbonyl!-4-methyl-2thiazolyl!carbamic acid. 1,1-dimethvlethvl ester

<img file="IL170873A_D0059.tif" />

Compound 9 was prepared by an analogous method as that of ID, except using 2,4-dichloroaniline to give the title compound 9 as a white solid (28%).

<img file="IL170873A_D0060.tif" />

Example

Preparation of 2-Amino-N-(2.4-dichIoronhenyI)-4-methyl5־thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0061.tif" />

Compound 10 was prepared by an analogous method as that of 4, except using 9 to give the title compound 8 as a white solid (100%).

Example

Preparation of 5-[r(2,4.6־Trimethvlnhenyl)aminolcarbonvl1-2thiazolvll carbamic acid, 1.1-dimethvlethyl ester

<img file="IL170873A_D0062.tif" />

ch₃

3. EthyI-2-terf־butoxvcarbonvloxvamino-thiazole-5-carboxylate Compound 11A was prepared by an analogous method as that of 3A, except using ethyl-2-amino-thiazole-5-carboxylate to give the title compound 11A as a white solid (79.5%).

B. 2-Ter(-butoxycarbonvloxvamino -thiazole5־-carboxylic acid Compound 11B was prepared by an analogous method as that of 3B, except using 11A to give the title compound 11B as a white solid (95.5%).

C. 2-7^leri-butoxycarbonvloxvamino-thiazole-5־carboxvlic acid chloride

Compound 11C was prepared by an analogous method as that of 1C, except using 11B to give the title compound 11C.

D, i5-rr(2,4.6-Trimethylphenvl)aminolcarbonyl1-2-thiazolvl1carbaTnic acid,

1.1-dimethvlethyl ester

Compound 11D was prepared by an analogous method as that of ID, except using 11C to give the title compound 11D as an off-white solid (70%).

Example

Preparation of 2-Amino-N-(2.4.6-trimethylphenyl)-4-phenyl-5thiazolecarboxamide, trifluoroacetate (1:1) ch₃

Compound 12 was prepared by an analogous method as that of 4, except using 11D to give the title compound 12 as a light yellow solid (88%).

Examples 13 to 53

General Procedure

Compounds 13 to 53 were prepared following the procedure described below. Appropriate amines (0.40 mmol) and diisopropylethylamine (70 pL, 0.40 mmol) were added to a suspension of 1C (100 mg, 0.36 mmol) in dichloromethane (3 mL). The solution was stirred mechanically in a sealed tube at rt for 16 h. The reaction mixtures were diluted with methanol (200 |1L) and loaded in Varian SCX ion exchange columns (2 g/6 cc) pretreated with methanol-dichloromethane (8 mL, 1:1) followed by dichloromethane (8 mL). SCX Column filtration were performed using a Gilson robot unit, The column was washed sequentially with dichloromethane (9 mL), dichloromethane-methanol (9 mL, 4:1), dichloromethane-methanol (9 mT.,

1:1), methanol (9 mL), 0.01 M ammonium hydroxide in methanol (9 mT.) and 0.05 M ammonium hydroxide in methanol (9 mL). The elutes were collected separately by the robot and then concentrated using a speed vac.

Fractions containing the products were combined.

“HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% HjPO₄ ) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% HjPO₄), flow rate 4 mL/min, λ 10 = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 13</td><td></td><td> [5- [ [(2-Methoxy-6methylphenyl)amino]carbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.79</td>

<td> 14</td><td> י! x 0^-0 X J 2^0 Q « £ d £</td><td> [4-Methyl-5-[[[3methyl-4-(1-methylethyl) phenyl] amino]carbonyl]-2thiazolyl]-carbamic acid 1,1-dimethylethyl ester</td><td> 4.51</td>

<td> 15</td><td> gl ch₃ »A ' Crl3</td><td> [5-[[(4-Bromo-2,6-dimethylphenyl) amino]carbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.24</td>

H3

<img file="IL170873A_D0063.tif" />

ch₃־h₃ ״ ch₃ch₃

[4-Methyl-5-[[[2methyl-6-(1methylethyl)phenyl]amino]carbonyl]-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

4.17

H₃C

<img file="IL170873A_D0064.tif" />

ο

Ν .ch₃ch₃

[5- [ [ (2,4- P05

Dimethylphenyl) amino] carbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

CH₃___________

Q ^H3V^CH3 d%H₃

<img file="IL170873A_D0065.tif" />

ch₃

Ν

Cl

[4-Methyl-5-[ [(2- 3.37 methylphenyl) amino]car bonyl]-2thiazolyl]carbamic acid 1,1-dimethylethyl I ester ch₃o,

Ν'

V־ch₃ch₃

[5- [ [ (2-Chloro-6- 3.86 methylphenyl) amino]car bonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

<img file="IL170873A_D0066.tif" />

<img file="IL170873A_D0067.tif" />

H3 h₃c w1₃־ ο

ch₃

L-O

<img file="IL170873A_D0068.tif" />

ch₃ ch₃

[5-[[[2-(1,1Dimethylethyl)-4methylphenyl]amino]car bonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

[5-[[(2Furany !methyl) amino] ca rbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

4.30

<img file="IL170873A_D0069.tif" />

<td> 22</td><td> H C /^C3^״^H3^C&gt;L_o^H3^C &gt;־N 0 ר} Hc!i kl ^F“₃C 0 -0 h₃c</td><td> [5-[i[3-Methoxy-5(trifluoromethyl)pheny 1] amino] carbonyl] -4methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.43</td>

<td> 23</td><td> / ^{1 z} \ p ^Zx^O Γ X °_χο 2 g “ ω</td><td> [5-[[(4- Cyclohexylphenyl)amino ]carbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.78</td>

<td> 24</td><td> מ מ χ x ס ο ״ Ύ־Ό Οχ. Ο X מ</td><td> [5-[[(Cyclohexyl methyl) amino]carbonyl] -4-methyl-2-thiaz01yl] carbamic acid 1,1dimethylethyl ester</td><td> 4.21</td>

<td> 25</td><td> H₃C CH *nV* CK X Z־־N ^׳״^S Cm</td><td> :5-(((2,3-Dihydro-lHmdenyl) amino] carbonyl : -4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.30</td>

<td> 26</td><td>^Η3(υογ^νζ) h₃c־a η H ch₃ ° ch₃</td><td> [5-((2,5-Dihydro-lHpyrrol-1-yl)carbonyl] 4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.56</td>

<td> 27</td><td> CL.־־⁰’״ _ד p CH3 ⁰Υ^ΖΠο^*^, k־־n % י h₃c ch₃ ° ch₃</td><td> [5-[(2,5-Dihydro-2,5limethy1-iH-pyrro1-1/!)carbonyl] -4-methyl2-thiazolyl]carbamic acid 1,1-dimethylethyl aster</td><td> 3.86</td>

<td> 28</td><td> (Abs ^λ^ΝΗ₂^H3C_y°YW ⁰ H₃C&lt; □ N-\' ch₃^u ch₃</td><td> 1-[[2-[[(1,1Dimethylethoxy)carbony 1]amino]-4-methyl-5thiazolyl]carbonyl]-Lprolinamide</td><td> 2.96</td>

<td> 29</td><td>^h־^c 0 jX X.O \-N J o</td><td> [5-[(4-Formyl-lpiperazinyl)carbonyl]4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 2.90</td>

<td> 30</td><td> °^}h₃c Ήχ j? 0 s^_nA₀^-ch₃ch₃</td><td> [5-(1,4-Dioxa-8azaspiro[4.5]decan-8ylcarbonyl)-4-methyl2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.54</td>

<td> 31</td><td> H3C H3C ) ch y-CX s ⁰ ^ιΑσ-Γ⁰«־ ch₃</td><td> [5-((3-((Diethylamino) carbonyl]-1piperidinyl] carbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.66</td>

<td> 32</td><td> h₃c,ch₃ W^h₃c^An</td><td> ;4-Methyl-5- :(octahydro-1quinolinyl)carbonyl]2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.37</td>

<td> 33</td><td> H3Q H₃C-J^^CH3 Vo Γ i K &lt; H₃C&lt; 0 N-C . &lt; ch₃ ch₃</td><td> 2-[[(l,lDimethylethoxy) 2arbonyl]amino]-4nethyl-5:hiazolecarboxylic icid 2-((1,1limethylethoxy) :arbonyl]hydrazide</td><td> 3.50</td>

<td> 34</td><td> ־״_VN OC . EVn ³ rr^N h₃c,_£JA_5sz&gt;</td><td> [5-(((4-Me thoxyphenyl) amino] carbonyl] -4methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.83</td>

<td> 35</td><td> x ” y o^₂ ω 1________________*</td><td> [4-Methyl-5-[[(4methylphenyl) amino]car bonyl]-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.07</td>

<td> 36</td><td> 0 ^H3? P ^⁰'Λ ³A /׳ /^CH3 CH3 '^(TT'CHa ch₃</td><td> [5-(((1,2- Dimethylpropyl) amino]carbonyl]-4methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.87</td>

<td> 37</td><td> H₃c£H₃ Γοη₃ n₃C \ q ״* \ ch₃^υ ch₃</td><td> [5-(((2,2Dimethylpropyl) amino]carbonyl]-4methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.97</td>

<td> 38</td><td> X 04^ ¾4 סא־־ס ״ 2 ω</td><td> [4-Methyl-5-[(2propynylamino) carbonyl ]-2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.22</td>

<td> 39</td><td>^Η־% ι _h^h;v^״c/° Π3 \ ο יי \ CH₃^U CH₃</td><td> [4-Methyl-5-[(2propenylamino) carbonyl -2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.41</td>

<td> 40</td><td> Ρ :ב ־^\ Χ&gt; Ο 7=Γ X / \ 0^י² oCj 3 S ω J-</td><td> ;4-Methyl-5- ; (methylphenylamino) carbonyl]-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.75</td>

7־

<td> 41</td><td> h₃c ch ״a _N vk Γ\ν ^C3^״ 0χΑ?λ־^Νch₃ Y^s Ο^ίχ^Ν H₃C^x°</td><td> [4-Methyl-5-[[(34,5_׳trimethoxyphenyl) amino ]carbonyl]-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.84</td>

<td> 42</td><td> X ω /־V 2 \z-^ “־ ω o \__ת z /==^ ω I \ ^OTyz o o x z w _ω</td><td> [5-[[[2,6-Bis(lmethylethyl)phenyl] ami no]carbonyl]-4-methyl2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.40</td>

<td> 43</td><td>^H39,ch₃ ״U N H₃cn&lt; /-^/(7 =^N 0</td><td> [5-[[[3-(1H-Imidazol1- yl) propyl]amino]carbon yl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 2.45</td>

<td> 44</td><td> H3Q,CH₃H₃C Q 0 F</td><td> [5-[[[(3,4- Di fluorophenyl) me thyl ] amino]carbonyl]-4methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.97</td>

<td> 45</td><td> _״ (Abs) ch₃qA ch₃ ״^J״&gt;_v. h₃c ch₃</td><td> Ny[ [2-[ [(1,1- Dime thyl ethoxy) carbony 1] amino] -4-methyl-5thiazolyl]carbonyl]-LLeucine methyl ester</td><td> 3.99</td>

<img file="IL170873A_D0070.tif" />

<img file="IL170873A_D0071.tif" />

5- [ [ [2-(((1,1- |3T27

Dimethylethoxy)carbony 1]amino]-4-methyl-5thiazolyl]carbonyl] ami no]-4-oxopentanoic acid methyl ester

[5 - [ [ [2- (Ethylthio) 3 75 ethyl] amino]carbonyl]4-methy1-2-thiazoly1] carbamic acid 1,1!dimethylethyl ester

[5 - [ [Bis (3- 4 ־ g7 methylbutyl)amino]carb ony1]-4-methy1-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

[5-[[Ethyl(1- 3§4 methylethyl)amino]carb pnyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester

2-[ [ (1,1- 4.66

Dimethylethoxy)carbony 1] amino]-4-methyl-5thiazolecarboxylic acid 2-[[(3,5dichlorophenyl)amino]t [hioxomethyl ] hydrazide

[5- [ [Bis (2- 3.83 ethoxyethyl)amino]carb pnyl]-4-methy1-2!thiazolyl] carbamic acid 1,1-dimethylethyl ester

<td> 52</td><td>^H3V^CH3 H₃C-&lt; 0==%</td><td> [4־Methyl-5-[[3- [(trifluoroacetyl)amin o]-l- pyrrolidinyl]carbonyl] -2-thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.47</td>

<td> 53</td><td> HjC ״ . jrk^{10 0}־^H־ P^H3| ^S</td><td> [5-[[(2,6- Dimethylphenyl) amino]c arbonyl]-4-methyl-2thiazolyl]carbamic acid 1,1-dimethylethyl ester</td><td> 3.87</td>

Examples 54 to 129

General Procedure

Compounds 54 to 129 were prepared following the procedure described below. Diisopropylethyl amine (60 gL, 0.34 mmol) was added to a mixture of amine 2 (30 mg, 0.11 mmol), appropriate carboxylic acid (0.13 mmol), 1hydroxy-7-azabenzotriazole (19.5 mg, 0.14 mmol), and ethyl-3-(3dimethylamino)-propyl carbodiimide hydrochloride (26.8 mg, 0.14 mmol) in THF (0.4 mL). The mixture was heated in a sealed tube under argon at 10 45°C for 24 h. The reaction mixture was diluted with dichloromethane (4 mL) and washed with 2 N aq. HC1 solution (2 mL, 3x). The dichloromethane solution was passed through a Varian SCX cation exchange column (2 g, 6 cc) on a Gilson robot. The column was eluted sequentially with acetonitrile-methanol (10 mL, 4:1), methanol-2M methanolic ammonia (3 mL, 4:1), and 2 M methanolic ammonia solution (3 mL, 4x). The fractions were collected separately using the Gilson robot. Fraction containing the product was concentrated and dried in vacuo . “HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 50 mm Ballastic Column, 4 .min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% HjPO₄) to 100% -77solvent B (90% MeOH, 10% ¾0, 0.2% H₃PO₄), flow rate 4 mL/min, λ = 220 nM for compounds 54 - 127. For compounds 128 -129 HPLC conditions are. Zorbax S8-C18 4.5 mm x 7.5 cm short column, 8 min gradient starting from 100% solvent A (10% MeOH, 90% ¾0, 0.2% H₃PO₄) to 100% solvent

B (90% MeOH, 10% ¾0, 0.2% H₃PO₄), flow rate 2.5 mL/min, λ = 217 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name HPLC 1 Ret Time (min) 1</td>

<td> 54</td><td> M /^CH3 rci h₃c־^^:&gt;^/xch₃ ci ³</td><td> 2-[[(2,2-Dichloro-l- 4.22 methylcyclopropyl)carb onyl] amino]-4-meth.ylN-(2,4,6trimethylphenyl)-5thiazolecarboxamide 1</td>

<td> 55</td><td> ־ץ ז CH3‘^^־!!־!^H₃C^X</td><td> 2-[ (Cyclohexyl 4.47 acetyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide 1 I</td>

<td> 56</td><td> F °H3C׳׳^^,׳^z^CH3</td><td> 2-[(2,5-Difluoro- 4.15 benzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide 1</td>

<td> 57</td><td> Cl /־־\jP CH₃ Br f PH₃ HaC^^^CHg</td><td> 2-[(5-Bromo-2- 4.37 chlorobenzoyl)amino]- j 4-methyl-N-(2,4,6:rimethylphenyl)-5thiazolecarboxamide</td>

<td> 58</td><td> ' W3 ׳ i ? ¹ V ''3'י j| H₃C N ____________</td><td> 2-[(3-Cyano- 4θθ 3enzoyl)amino]-4- !ethyl-N-(2,4,6- :rimethylphenyl)-5- .hiazolecarboxairiide</td>

<td> 59</td><td> _ ,CH₃ QH₃^c%V&gt; N V/ ch₃ N-&lt; 0</td><td> 2-[[4-(Acetylamino)benzoyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.60 1</td>

<td> 60</td><td> Λ X o CO &gt;1 ς $ k/°</td><td> 4-Methyl-2-[[3- (trifluoromethyl) benzo yl]amino]-N-(2,4,6trimethylphenyl)-5thi a z o1ecarboxamide</td><td> 4.45</td>

<td> 61</td><td> Γ7 ז ?&gt; θχ^ίΚ^Ο Ο z Ci»</td><td> 4-Methyl-2-[[2-(2phenylethyl) benzoyl]amino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.64</td>

<td> 62</td><td> n T o o-'k^X^-o Z 1 τ’ ¾. O=Z \ &lt;0 Cy⁵־*</td><td> 2-[(3,5-Dimethylbenzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thi a z o1ecarboxamide</td><td> 4.49</td>

<td> 63</td><td> /־xXC^Z’ _η/Ολ %X1_C־״</td><td> 2-[(4-Ethenylbenzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td></td>

<td> 64</td><td> z o □? f״־C θ / &lt;p \_-s4 x p־ □?</td><td> 2-[(4-Butyl- . benzoyl)amino]-4nethyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.58</td>

<img file="IL170873A_D0072.tif" />

4-Methyl-2-[ (4- [4.75

Ipentylbenzoyl) amino] N-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide _________________H₃C ״zCH₃

I

I ________________________________________ ch₃

<img file="IL170873A_D0073.tif" />

Cl.

CH . _oY CH

ו 11

HaC^^^CH _ZCH₃₀³

I

CHg

<img file="IL170873A_D0074.tif" />

h₃c׳

°׳

I h₃c

<img file="IL170873A_D0075.tif" />

.ch₃

4-Methyl-2-[(2naphthalenylacetyl)!amino] -N- (2,4,6trimethylphenyl)-5thiazolecarboxamide h₃c ,0 &lt;?H₃ ch₃

<img file="IL170873A_D0076.tif" />

<td> 171</td><td> h₃c 0 η 1 ' CH3V-A X ΧΑ־־־ζ / / s ν ן /r־^N ___________ch₃ _________</td><td> 2-[ (Diphenyl- I4jg I acetyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td>

<td> 72</td><td> fy_a λ-/^Η3 V\ /״zjL^o F |” QH3 ⁰ kl H₃cU\H₃</td><td> 2-[ [ (2-Chloro-6- 4 yj fluorophenyl) acetyl] amino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td>

<td> 73</td><td> /^-X-CH3 ל fu/^CH3 N'kjU.o 1 p3^״ JUL H₃C^xx^^x'CH3</td><td> 4-Methyl-2-[[(2- 3.95 methylphenyl)acetyl]amino]-N(2,4,6-trimethyl- phenyl)-5thiazolecarboxamide</td>

<td> 74</td><td> H₃C #״ \־־/Η₃ 0-\ / Z' 'x. ^a f ch₃⁰ kA, HaC'^^CHa</td><td> 2 - [ [ (3-Methoxy- 4.11 phenyl) acetyl]amino]4-methyl-N-(2,4, 6trimethylphenyl)-5thiazolecarboxamide</td>

<td> 75</td><td> CH₃,0 P-CH3 A ru/^CH3־&lt; CG־Qz V 1 ch₃־־־^ ⁰ k JL JUL CH₃^^׳H3C</td><td> 2-[ [ (3,4-Dimethoxy- 3.90 phenyl)acetyl]amino]4-methyl-N-(2,4,6:rimethylphenyl)-5:hiazolecarboxamide</td>

<td> 76</td><td> V n Ml 4 «“«־-» » X 0 ” J ' f סב ^o—\ z ⁰ ״ / \ V־ * z_x ג״ JL^ 0</td><td>) ] ] ־-Chloro- 4,34 Jhenyl) acetyl] amino] I-methyl-N-(2,4,6.rimethylphenyl)-5-hiazolecarboxamide</td>

<img file="IL170873A_D0077.tif" />

ch₃ ס[ P^H3 fl X ο

<img file="IL170873A_D0078.tif" />

H3

<img file="IL170873A_D0079.tif" />

h₃c

<img file="IL170873A_D0080.tif" />

HO

2- [ ([1,1 ’ -Biphenyl ]-4- I4.6Q ylacetyl)amino]-4methyl-N-(2,4,6trimethylphenyl) -511hiaz01ecarboxamide h₃c ch₃| _____________ ^ch3 4-Methyl-2- [ (l-oxo-4- )4 4() phenylbutyl) amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide

J-fe____________ch₃__

4-Methyl-2- [ (1_o oxooctyl)amino] -Nch₃ (2,4,6-trimethyl./k phenyl)-5-thiazoleJI 3 c arboxami de

2-[(2-Hydroxy-2phenyl-1י^° p״ oxopropyl) amino]-4N JL ³ methyl-N-(2,4,6trimethylphenyl) -5thi az ο1ecarboxamide CH₃

4.65 !4.13

H3C־ ) ] -מ-Hydroxy-1oxohexyl) amino] -4 methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

4.14

H₃C^X^^!^^XCH3| I

KL ✓^ch3 4-Methyl-2- [ [l-oxo-4- 4.32 (2-thienyl)butyl]amino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide ch₃4-Methyl-2- [ (3- 4 04 thi eny!carbonyl) amino] -N-(2,4,6-trimethylphenyl)-5-thiazole^cH3 carboxamide

<img file="IL170873A_D0081.tif" />

<img file="IL170873A_D0082.tif" />

h₃c.

.0 PH₃ ״/CH₃ ¾0

<td> 84</td><td> X ο co ___/ X /=\ Z o σ&gt; V f? ^s—?° 2 '^ω ko V °</td><td> 2-[ (2-Benzofuranyl- 14.37 1 carbonyl)amino]-4methyl-N-(2,4,6- ₃trimethylphenyl)-5thiazolecarboxamide</td>

<td></td><td> 3 $_xχ^ο2 \^=־ co » co O \Z/S t ' co O X</td><td> N-[4-Methyl-5- 3.50 [[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-4pyridinecarboxamide, N-oxide</td>

<td> 186</td><td> o x^O=\ 2 co \ &lt;*כ O \--/־־S ?׳“ ־ ω O X ω</td><td> 6־Chloro-N-[4-methyl- 4.08 5-[[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-3pyridinecarboxamide</td>

<td> 87</td><td> CH&lt;X H₃ C^^CHa</td><td> N-[4-Methyl-5- 3.56 [[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyi]-3pyridinecarboxamide</td>

<td> 88</td><td> CO X o CO r- / X /^\ Z ° CO c &lt;ה ב= \_ r&gt;^xο &gt;=ο 2^ W 2L^° Us u</td><td> N-[4-Methyl-5- Lji [[ (2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-3quinolinecarboxamide</td>

<td> 89</td><td> $ xf־־° °\ £ _Λ־Ο \—ζ o “ r~ ' ω 2 &lt;o</td><td> 4-Methyl-2-[ [ (4- Lq8 nitrophenyl)acetyl]amino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td>

<td> 90</td><td> ^־H %XL; ci ^{3 CH3} t</td><td> j-Methyl-2-[ (2,4,6- 4.45 :richlorobenzoyljamino I -N-(2,4,6- :rime thyIpheny1)-5- :hiazolecarboxamide</td>

<td> 91</td><td> o&gt; / ° z ״^to=F^2 o z « 2־0 j ω 2 ω CT rt Q) ^,Ti —</td><td> l-Methyl-2-[ [2-[[3- 4.86 trifluoromethyl)&gt;henyl ] amino ] benzoyl ] mino]-N-(2,4,6rimethylphenyl)-5hiazolecarboxamide</td>

׳..Μ'

<td> 92</td><td> 0״ *Ο־Νί Ν-χΖ^³ tuA/r H₃C'^A^^־i־^&gt;־־־CH₃</td><td> 4-Methyl-2-[[4-(4ni trophenyl)-1oxobutyl]amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.28</td>

<td> 93</td><td> f δ °-/Ύ ״־ Ο ζ Ο־־Ζ ο \Υ־.° ο* ‘ο 1”</td><td> 4-Methyl-2-[[4(methyl-sulfonyl)benzoyl]-amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 3.79</td>

<td> 94</td><td> δ ץץ &gt;&lt;_δ £__________</td><td> 2-[(4-Heptylbenzoyl) amino] -4-methyl-N(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td></td>

<td> 95</td><td> «0 X Ο σ&gt; /——( X ״ °. /X δ V-z θ * ζ מ \__/ χ ζ^ מ</td><td> 2- [ [(2,4-Difluorophenyl)acetyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thi a z 01 ecarboxamide</td><td> 4.15</td>

<td> 96</td><td> ct₃ ® r\J m^^CH3 ^^HC^N-O _o Π₃ C ” 'g^x^.0 1 H₃(T'^Xi־־i*^&gt;'CH₃</td><td> (S)-2-[[2- (Dipropylamino)-1oxopropyl]amino]-4T1ethyl-N-(2,4,6trimethylphenyl)-5thiazolec arboxami de</td><td> 3.20</td>

<td> 97</td><td> h₃c ch₃ /ך νΛ λΛ / ^CH3⁸ 0H3C J7 Μ</td><td> 2-[(2-Biphenylenecarbonyl) amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.64</td>

<td> 98</td><td> ״,CH₃ A&lt;Co __. Μ 1 9^h3 H₃C-0 HjC^^CHs</td><td> 2-[[3-(3- Methoxyphenyl)-1oxopropyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.26</td>

<td> 99</td><td> h₃c ^\-ch₃^Η3θ J n^׳^CH3 ^׳CCo T 9h₃ JUL H₃ ch₃</td><td> 4- Methyl-N-(2,4,6trimethylphenyl)-2[[(2,4,6-trimethylphenyl) acetyl]amino]- 5- thiaz01ecarboxami de</td><td> 4.52</td>

<td> 100</td><td> m/^CH3 UsU° J w AU /—־V r*³ -/ 0 w U jQ H₂C H3C^*׳ ch₃</td><td> 4-Methyl-2-[(l-oxo-6heptenyl) amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.47</td>

<td> 101</td><td> δ (Ώ / ⁵־־o ⁿ Q / \ X ίϊΟ</td><td> 2-[[(1,3-Benzodioxol5-yl)acetyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.07</td>

<td> 102</td><td> O JLJL /=־\</td><td> 4-Methyl-2-[[[2(phenylmethoxy) phenyl ] acetyl]amino]-N;2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.46</td>

<td> 103</td><td> rQX O zTr JLl HaC^^CHa</td><td> 4-Methyl-2-[[(3phenoxyphenyl) acetyl]a πίηο]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.56</td>

V004 /

<td> 104</td><td> O'CH 3 H₃C N—Z׳^CH3 °־־U xg '־־'V 1 9^h3 *A H₃C'^Z^^־^^XCH₃</td><td> 2-[(3,5-Dimethoxyphenyl) acetyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.13</td>

<td> 105</td><td> o or\ ט Az cr^ ω O’-־; “o &gt;=f o “ yjy? 2 ί</td><td> 2-[[4-[4-[Bis(2chloroethyl) amino]phen yl]-1-oxobutyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.75</td>

<td> 106</td><td> CH₃bU) a ׳ch₃V-n ³ Γ h₃c o</td><td> 4-[[4-[[[4-methyl-5[[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-amino]carbonyl]phenyl]amino]-4-oxobutanoic acid methyl ester</td><td> 4.03</td>

<td> 107</td><td> Q ¢,0 A ζΡ M Z^c3^״⁰ +ZC0 Γ pH, HaC'^^CHa</td><td> 4-Methyl-2-[[(phenylsulfonyl)acetyl]amino] -N-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 3.77</td>

<td> 108</td><td> &lt;? &lt;? ? O^O ^ω\ Q _Z²S s Λα ° ^ω s / w O X w . —</td><td> 2-[[2-(Acetylamino)-1□xohexyl] amino]-4nethyl-N-(2,4,6urimethylphenyl)-5:hiazolecarboxamide</td><td> 3.99</td>

<img file="IL170873A_D0083.tif" />

H3

<img file="IL170873A_D0084.tif" />

ch₃ h₃c ch₃

PH₃

H3

<img file="IL170873A_D0085.tif" />

- [ [ 4 - [(Dipropyl- 14.51 amino)sulfonyl]benzoyl ]amino]-4-methy1-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide ch₃

<img file="IL170873A_D0086.tif" />

ch₃ ch₃ h₃c ch₃ .0 ch₃ '3 /, CH,

2-[(4-Cyclohexylbenzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

4.94

<img file="IL170873A_D0087.tif" />

H₃C־ CH 3 ch₃

- [ (4 -Bromo-3- 4 39 methylbenzoyl)amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

- [ [ (2,3 - Ι4ΤΪ4

Di fluoropheny1)ace tyl] amino]-4-methyl-N(2,4,6trimethylphenyl)-5thiazolecarboxamide

113 I ch₃H₃ h₃c׳ ch₃

4-Methyl-2-[[[4-(1methylethyl) phenyl]ace tyl]amino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

<img file="IL170873A_D0088.tif" />

<img file="IL170873A_D0089.tif" />

h₃c ^H3^c 'CH₃

<img file="IL170873A_D0090.tif" />

ch₃

P^h3 12- [ [ [4- (1,1-Dimethyl- I4 35 ethyl)cyclohexyl]carbo nyl]amino]-4-methyl-N (2,4_Z6-trimethylN ³ phenyl)-5-thiazolecarboxamide

<img file="IL170873A_D0091.tif" />

H₃C־־h( ch₃ ch₃

<img file="IL170873A_D0092.tif" />

h₃c־

9H3

N_׳N-Dimethyl-N¹ -[4- 3 5η methyl-5-[[(2,4,6trimethylphenyl)amino] carbonyl]-2thiazolyl]butanediamid

CH3 ^e ch₃

0 ן________I

H3

<img file="IL170873A_D0093.tif" />

4.40“⁶׳ ^{1} ]2}7.

₀ pioxohexyl) amino]-4f ch₃ methyl-N- (2,4,6K JL trimethylphfenyl)-5thiazolecarboxamide .ch₃ _______________________

2- [ (Benzo [b] thiophen- 14 53 2-ylcarbonyl)amino]-4methyl-N-(2,4,6_CH I trimethylphenyl)-5.thiazolecarboxamide

H₃C‘ ch₃ h₃c

<img file="IL170873A_D0094.tif" />

ch₃o

2-[(1-Adamantyl“ipH carbonyl) amino] -4P methyl-N-(2,4,6trimethylphenyl)-50׳ thiazolecarboxamide

14.66

<img file="IL170873A_D0095.tif" />

h₃c h₃

<img file="IL170873A_D0096.tif" />

ch₃

P4 ₃^״-Methyl-2-[ [ (4- ¢48 methyl cyclohexyl) carbo nyl] amino]-N-(2,4,6/^_CH trimethylphenyl)-5N ³ thiazolecarboxamide

<td> 120</td><td> n&gt;׳^ch3 |2-[ (1,7-Dioxooctyl) - 13.88 1 rt-CjL.0 amino]-4-methyl-N- 4—ן f CH₃ (2,4,6-trimethyl- /— ° N'v'X, phenyl)-5-thiazole- /— Ji 1 carboxamide O=\ H₃C'^A־^^A'CH₃| ch₃ ן II</td>

<td> 121</td><td> Vn P _ch 22]] ־-(Acetylamino)-4- 3.93 n-/^CH3 (ethylthio)-1- ^H3C / N—XJL 0 pxobutyl] amino]-4- \ ch₃ methyl-N- (2,4,6- S m trimethylphenyl)-5- ) |f| thiazolecarboxamide ^H3C H3c^xks^CH3| ן ן</td>

<td> 122</td><td> Λ/™³ QH₃ l5׳-D1methyl-N-[4- 3.91 h₃c_^ methyl-5-[[ (2,4,6- 1 η Τ II trimethylphenyl )amino] H3C׳^N'^{n 0} carbonyl]-2- thiazolyl]-1Hpyrazole-3-carboxamide</td>

<td> 123</td><td>^H%_n ״ _Z^CH3 |2-[ [ [4-methyl-5- 37η / N-/T [[(2,4,6- I /^f=\_^ ^XS^&gt;x₁⁰^־ trimethylphenyl )amino] \ / ¾ 1 ?³ carbonyl]-2- ''Y'V thiazolyl] amino] carbon JI J. yl]benzoic acid H3C ^־^ch₃ ן | |</td>

<td> 124</td><td> /^CH3 N-[4-Methyl-5- 4 jg p ^°^h39 [[ (2,4,6-trimethyl- Phenyl) amino] carbonyl] ^N y 7/ ³-thiazolyl]-6-benzo- H₃c thiazolecarboxamide Vs__j</td>

<td> 125</td><td> &lt;?h₃ &gt;/^CH3 ch, l־Ethyl-4-methyl-N-[4- 4.09 L N P-OL J methyl-5-[[(2,4,6- y4־ ^S iT^ III trimethylphenyl)- ¹Ά ⁰ °h r׳VJk__u amino] carbonyl]-2- CH₃^{3 3} thiazolyl]-1H- pyrazole-3-carboxamide</td>

<td> 126 / יז</td><td> ^^CH3 ch 4-Methyl-2-[ [3-[ (3H- 4.15 Λ Ν־αΪ fl J. ³ 12,3 ׳-triazolo [4, 5- ΛΛ-4 ^S 1Γ III b]pyridin-3- 0 0 ע-ץ ^A^JL yloxy) methyl ]benzoyl ]a { Η’⁰ CH3L_ino]__N__{{2 4 6}_ p trimethylphenyl)-5- t־N thiazolecarboxamide % , 11</td>

<td> 127</td><td> ° Λ ω ' « O f \ / s / ' « Ο I ω</td><td> 2-[(2-Furanylcarbonyl) amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.45</td>

<td> 128</td><td> Ο Ο-״ \-ΖΧ ο X ω</td><td> 2-[(4-Chlorobenzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl) -5thiazolecarboxamide</td><td> 8.85</td>

<td> 129</td><td> °h₃c׳׳^I^^:=׳^zIsch₃</td><td> 2-[(2,2-Dimethyl-loxopropyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 8.30</td>

Example

Preparation of r4-Methyl-5i[(2-nitrophenvl)aminolcarbonvl]-2thiazolyl! carbamic acid, 1.1-dimethylethvl ester

CH h₃cJT h₃c׳^

<img file="IL170873A_D0097.tif" />

2-Nitroaniline (55 mg, 0.4 mmol) and diisopropylethylamine (70 J1L, 0.4 mmol) were added dropwise to a a stirred solution of 2-tertbutoxycarbonyloxyamino-4-methyl-thiazole5־-carboxylic acid chloride 1C 10 (100 mg, 0.36 mmol) in dichloromethane (3 mL). After 16 h at rt, 4-N,N- dimethylaminopyridine (22 mg, 0.18 mmol) was added and the mixture was stirred for additional 3.5 h. The solvent was evaporated in vacuo. The residue was chromatographed on a silica gel column. Elution with 5% EtOAc in hexanes followed by 20% EtOAc in hexanes afforded the title 15 compound (15 mg, 11%) as a yellow solid.

Example

Preparation of [4-Methyl2,4.6)]] 5־-trimethvlphenvI)amino!carbonyl!-2thiazolyl!carbamic acid, phenylmethyl ester

<img file="IL170873A_D0098.tif" />

3. Ethvl-2-benzvloxvcarbonvloxvamino-4-methvl-thiazole-5-carboxylate ASM aq. NaHCO₃ solution (10 mL, 30 mmol) was added to a stirred solution of ethyl-2-amino-4-methyl־thiazole-5-carboxylate (372 mg, 2 mmol) in THF (20 mL) at 0-5°C. Benzyl chloroformate (500 pL) was added. After 2 h, additional benzyl chloroformate (500 pL) and the biphasic solution was stirred for an additional 2 h at 0-5°C. The mixture was diluted with dichloromethane (50 mL) and water (30 mL). The organic layer was separated, dried (MgSO₄), filtered and concentrated. The residue was chromatographed on a silica gel column. Elution with 10% EtOAc in hexanes followed by 20% and 30% EtOAc in hexanes afforded the title compound (310 mg, 48%) as a white solid.

B. 2-Benzvloxvcarbonvloxyamino4־-methvl-thiazole-5-carboxvlic acid Compound 131B was prepared by an analogous method as that of 3B, except using 131A to give the title compound 131B as a white powder (77%).

C. [4-Methyl-5-[[(2.4.6-Trimethvlphenvl)amino!carbonyl!-2thiazolyl! carbamic acid, phenylmethyl ester

Diisopropylethylamine (70 pL, 0.41 mmol) was added to a solution of 131B (100 mg, 0.34 mmol), 2,4,6-trimethylaniline (60 pL, 0.41 mmol), and [0-(7-91azabenzotriazol-l-yl)-l,l,3,3-tetramethyluromum]hexafluorophosphate (HATU, 160 mg, 0.41 mmol). The mixture was stirred at rt for 24 h, diluted with EtOAc (20 mL) and washed with 2 N Aq. HC1 solution (3x), brine, dried (Na₂SO₄), filtered and concentrated. The residue was triturated with ether (40 mL) to obtain the title compound (100 mg, 77%) as an off-white solid.

Example

Preparation ¹⁰ trimethylphenvl)aminolcarbonyll-2-thiazolvllcarbarmc acid. 1.1־ dimethvlethyl ester

<img file="IL170873A_D0099.tif" />

Compound 132 was prepared by an analogous method as that of 1, except 15 using ethyl-2-ieri-butoxycarbonyloxyaminomethyl-4-methyl־thiazole-5carboxylate to give the title compound 132 as a tan solid.

Example

Preparation of 4-Methvl-2-(methylamino)-N-(2.4.6-trimethvlphenyl)-5 thiazolecarboxamide, trifluoroacetate (1:1)

CH₃.

¾/ ch₃־ch₃ o ^Zh₃c

Compound 133 was prepared by an analogous method as that of 4, except using 132 to give the title compound 133 as a white solid (91%).

Example

Preparation of i4-Methvl-5־rrmethvli2.4.6trimethylphenyl)aminolcarbonvll-2-thiazolvll carbamic acid. 1,1 dimethylethyl ester ζθΗ₃ h₃c

<img file="IL170873A_D0100.tif" />

Compound 134 was prepared by an analogous method as that of 1, except using N-methyl-2,4,6-trimethylaniline to give the title compmind 134 as a white solid (60%).

Example

Preparation of 2-Amino-N.4-dimethvl-N-(2,4.6-trimethvlphenyl)-5 thiazolecarboxamide, trifluoroacetate (1:1) /CH₃_/JL/^CH₃H₃C

Compound 135 was prepared by an analogous method as that of 4, except using 134 to give the title compound 135 as a white solid (97%).

י T WO 21)04/085388 *V .

Example

Preparation thiazolyl!carbamic acid, methyl ester

<img file="IL170873A_D0101.tif" />

A mixture of 2 (100 mg, 0.36 mmol), pyridine (87 |1L, 1.08 mmol), methyl chloroformate (111 pL, 1.44 mmol) in dichloromethane (3 mL) was stirred at rt for 1.5 h. The solution was diluted with dichloromethane and washed with aq. NaHCO₃ solution (20 mL, 2x), brine; dried (MgSO₄), filtered and concentrated. The residue was triturated with ether to obtain the title compound (88 mg, 82%) as a white solid.

Example

Preparation thiazolyl! carbamic acid, 1.1-dimethvlethyl ester

B₃C

Compound 137 was prepared by an analogous method as that of 1, except using methyl-2-a1mno-4-ethyl-thiazole-5־carboxylate to give the title compound 137 as a white solid (70%).

Example

Preparation of 2-Amino4־-ethvl-N-(2.4.6-trimethvlphenvl)-5thiazolecarboxamide, trifluoroacetate

<img file="IL170873A_D0102.tif" />

Compound 138 was prepared by an analogous method as that of 4, except using 137 to give the title compound 138 as a white solid (89%).

Example

Preparation of [5-11(2,6-Dichlorophenvl)amino1 carbonyl]-4-methvl-2 thiazolyl!carbamic acid, 1,1-dimethvlethvl ester

<img file="IL170873A_D0103.tif" />

AIM solution of sodium bis-trimethylsilyl amide (290 |1L, 0.29 mmol) was added to a stirred solution of 2,6-dichloroaniline (13.4 mg, 0.08 mmol) in THF (1 mL). After 30 min, the mixture was cooled to 0 °C and 1C (30 mg, 0.11 mmol) was added in.one portion. The mixture was allowed to warm to ft and stirred for 16 h. The solution was diluted with dichloromethane and washed with 2 N aq. HC1 solution (2 mL, 3x), dried (MgSO₄), filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 30% EtOAc in hexanes to obtain the title compound (20 mg, 45%) as a light yellow solid.

Example 140

Preparation of 2-Amino-N2.6)־-dimethylphenyl)-4-methvl-5thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0104.tif" />

Compound 140 was prepared by an analogous method as that of 4, except using 53 to give the title compound 140 as a light tan solid (100%).

Example

Preparation of 2-Amino-N-(2-methoxy-6־methylphenvl)4־-methvl-5thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0105.tif" />

Compound 141 was prepared by an analogous method as that of 4, except using 13 to give the title compound 141 as an off-whit^ solid (100%).

Example

Preparation of 2-A1nino-N-(2-methvlphenvl)-4-methvl-5 thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0106.tif" />

Compound 142 was prepared by an analogous method as that of 4, except using 18 to give the title compound 142 as a light tan solid (90%).

Example

Preparation thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0107.tif" />

Compound 143 was prepared by an analogous method as that of 4, except using 15 to give the title compound 143 as a light tan solid (70%).

Example

Preparation of 2-Amino-N-(2-chloro-6-methvlphenvl)-4-methvl-5thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0108.tif" />

Compound 144 was prepared by an analogous method as that of 4, except using 19 to give the title compound 144 as a light tan solid (81%).

Example

Preparation of 2-Amino-N-(2,4-dimethylphenvl)-4-methyl-5thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0109.tif" />

Compound 145 was prepared by an analogous method as that of 4, except using 17 to give the title compound 145 as a light tan solid (68%).

Example ⁵ Preparation of 2-Amino-N-(2-methyl-6-isopropvlphenvl)-4-methvl-5thiazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0110.tif" />

Compound 146 was prepared by an analogous method as that of 4, except using 16 to give the title compound 146 as a light tan solid (100%).

Example

Preparation thiazolecarboxamide

<img file="IL170873A_D0111.tif" />

A mixture of 2 (54 mg, 0.2 mmol), acetic anhydride (22 pL, 0.23 mmol), dimethylaminopyridine (3 mg) in dichloromethane (4.5 mL) was stirred at rt for 4.5 h. The mixture was diluted with dichloromethane (65 mL) and 20 washed with 1 N aq. HC1 solution (20 niL), water; dried (MgSO₄), filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 35% EtOAc in hexanes to obtain the title compound (43 mg, 69%) as a white solid.

Example 148

Preparation thiazolecarboxamide

<img file="IL170873A_D0112.tif" />

A solution of 2 (100 mg, 0.36 mmol) and benzoic anhydride (226 mg, 1 mmol) in dichloromethane (10 mL) and pyridine (2 mL) was stirred at rt overnight. The mixture was diluted with dichloromethane (50 mL) and washed with 2 N aq. HCI solution (15 mL, 2x), 10% aq. NaHCO₃ solution (20 mL, 2x); dried (MgSOJ, filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 30% EtOAc in hexanes followed by 50% EtOAc in hexanes to obtain the title compound contaminated with benzoic acid. The solid was dissolved in EtOAc (40 mT.) and washed with satd. KHCO₃ solution (15 mL, 4x), dried (MgSO₄), filtered and concentrated to obtain the title compound (110 mg, 80%) as a white solid.

Example

Preparation of 4-methvl-2-[(l-oxopropvl)aminol-N-(2.4.6-trimethvlphenvl)־

5-thiazolecarboxamide

<img file="IL170873A_D0113.tif" />

A mixture of 2 (100 mg, 0.36 mmol), propionic anhydride (332 gL, 2.58 mmol) in dichloromethane (10 mL) and pyridine (4 mL) was stirred at rt for 3 h. Dimethylaminopyridine (122 mg, 1 mmol) was added and the 25 mixture was stirred for additional 1.5 h. The mixture was diluted with ν' ז״ wo 20א«3ב«ט/4ט dichloromethane and washed with 1N aq. HC1 solution (25 mL, 3x), aq.

NaHCO3 solution (20 mL, 2x), water(20 mL), brine; dried (MgSOJ, filtered and concentrated. The residue was chromatographed on a silica gel ¢01^11-111,1-1 and eluted with 20% EtOAc in hexanes to obtain the title compound (81 mg, 68%) as a white solid.

Example

Preparation

5־thiazolecarboxamide

<img file="IL170873A_D0114.tif" />

Compound 150 was prepared by an analogous method as that of 149, except using butyric anhydride to give the title compound 150 as a white solid (76%).

Example

Preparation

5-thiazolecarboxamide

<img file="IL170873A_D0115.tif" />

Compound 151 was prepared by an analogous method as that of 149, except using valeric anhydride to give the title compound 151 as a white solid (77%).

Example 152 -10025

Preparation

5-thiazolecarboxamide

<img file="IL170873A_D0116.tif" />

Compound 152 was prepared by an analogous method as that of 149, except using hexanoic anhydride to give the title compound 152 as a white solid (75%).

Example ¹⁰ Separation of 4-Methyl-2-r(phenvlcetyl)aminol-N-(2.4.6-trimethvlnhenvl)5-thiazolecarboxamide

<img file="IL170873A_D0117.tif" />

A solution of amine 2 (50 mg, 0.18 mmol), diisopropylethylamine (101 gL, 15 0.58 mmol), phenylacetic acid (27.2 mg, 0.20 mmol), l-hydroxy-7azabenzotriazole (29.4 mg, 0.22 mmol), and ethyl-3-(3-dimethylamino)propyl carbodiimide hydrochloride (42.2 mg, 0.22 mmol) in dichloromethane (0.62 mL) was mechanically stirred in a sealed vial for 16 h. The reaction mixture was passed through a Varian SCX ion 20 exchange column (2 g/6 cc) and eluted with acetonitrile-methanol (10 mL 4:1) followed by 2 M methanolic ammonia solution (9 mL). Fractions containing the product were combined and then concentrated. The residue was dissolved in dichloromethane and washed with 2 N aq. HC1 solution (3x), dned (Na₂SO₄), filtered and concentrated to obtain the title compound 25 (39 mg, 55%) as a tan solid.

WO 2004/085388

Example

Preparation of 2-ir(Acetvlamino)acetyllamino14־-methyl-N_r(.2_>4₁6r trimethvlphenyl)-6-thiazolecarboxannde

A solution of amine 2 (50 mg, 0.18 mmol), diisopropylethylamine (400 pL,

2.3 mmol), N-acetylglycine (42 mg, 0.36 mmol), l-hydroxy-7azabenzotriazole (49 mg, 0.36 mmol), and ethyl-3-(3-dimethylamino) propyl carbodiimide hydrochloride (72 mg, 0.36 mmol) in THF (5 mL) was heated to 50°C overnight. The mixture was cooled, diluted with dichloromethane (60 mL) and washed with 2 N aq. HC1 solution (20 mL), satd. Aq. KHCO_S solution (20 mL), dried (MgSOJ, filtered and concentrated. The crude solid was triturated with ether (10 mL), filtered, and washed with ether (5 mL, 3x) to obtain the title compound (40 mg, 59%) as an off-white solid.

Example

Preparation of 2-Amino־4־methvl־N-(2,4,6~trimethYlphenyl)5־thiazolecarbothioamide

A suspension of 2 (50 mg, 0.18 mmol) and Lawesson reagent (44 mg, 0.11 mmol) in toluene (0.23 mL) was heated to 100°C for 4h. Additional

Lawesson reagent (44 mg, 0.11 mmol) was added and the mixture was heated for additional 3.5 h. The crude mixture was chromatographed on a silica gel column and eluted with 50% EtOAc in hexanes followed by 70%

EtOAc in hexanes to obtain a a yellow solid which was triturated with hexanes (6 mL) to obtain the title compound (11 mg, 21%) as a yellow solid.

Examples 156 to 170

General Procedure

Compounds 156 to 170 were prepared following the procedure described below. Diisopropylethyl amine (60 pL, 0.34 mmol) was added to a mixture of amine 2 (30 mg, 0.11 mmol), appropriate carboxylic acid (0.13 mmol), 1hydroxy-7-azabenzotriazole (19.5 mg, 0.14 mmol), and ethyl-3-(3dimethylamino)-propyl carbodiimide hydrochloride (26.8 mg, 0.14 mmol) in THF (1 mL). The mixture was heated in a sealed tube under argon at 45 °C for 24 h. The reaction mixture was diluted with dichloromethane (4 mL) and washed with 2 N aq. HC1 solution (2 mL, 3x), dried (Na₂SO₄) and concentrated using a speedvac. The crude products were either triturated with dichloromethane-ether (5 mL, 1:1) or purified by silica gel chromatography (elution solvent: 50% EtOAC in hexanes and EtOAc). “HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 4 mL/min, λ = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

WO 2004/085388

<td> 156</td><td> ־CH. IΗ Λ ־״־מד</td><td> 2-[(4- Bromobenzoyl) amino] -4methyl-N- (2,4,6trimethylphenyl)-5thiazolec arboxami de</td><td> 5.03</td>

<td> 157</td><td> co X O / מ &lt;0 Ο שב ־⁰¹ / ο d</td><td> 4-Methyl-2-[(4nitrobenzoyl)amino] -N(2,4,6trimethylphenyl)-5thiaz o1ecarboxamide</td><td> 4.87</td>

<td> 158</td><td> .CH₃ 0-1₃^׳׳0&amp;</td><td> 2-((4- Cyanobenzoyl)amino]-4methyl-N-(2,4,6trimethylphenyl)-5thi azo1ecarboxamide</td><td> 4.70</td>

<td> 159</td><td>_ZCH₃^^-¾57. 0N? o</td><td> 4-Methyl-2-[[(5-nitro2- furanyl)carbonyl]amino ]-N-(2,4,6trimethylphenyl)-5thiazolec arboxami de</td><td> 4.63</td>

<td> 160</td><td> CO X o co ___/ δ_ΖΛ « ״z o o &gt;=Qe z</td><td> 4-Methyl-2-[(2thienylcarbonyl) amino] -N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.60</td>

<td> 161</td><td>_zch₃ 0</td><td> 4-[[[4-Methyl-5[[(2,4,6trimethylphenyl)amino] carbonyl]-2thiazolyl]amino]carbon yl]benzoic acid methyl ester</td><td> 4.99</td>

<td> 162</td><td> Λ X o co ___/ ^δΌ η Z Q י£ס=ך 5 OT ל^, °~v</td><td> 2-((5- Isoxazolylcarbonyl) ami no]-4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.87</td>

<td> 163</td><td> co X O מ __/ ⁵־o n z o £ס=ך 5 'ϊ”®¹</td><td> 2-[(3-Furanylcarbonyl amino]-4-methyl-N(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.54</td>

<img file="IL170873A_D0118.tif" />

_xch₃

H3G

12- [ [ (2,4-Dimethyl-5thiazolyl)carbonyl]ami no]-4-methyl-N-(2,4,6I trimethylphenyl)-5thiazolecarboxamide /CH₃

2-[[(4-Methoxy-3thienyl)carbonyl] amino ]-4-methyl-N-(2,4,6itrimethylphenyl)-5thiaz ο1ecarboxamide

166 _zch₃

I Γ13 L. υ*Π3

4-Methyl-2-[[(5-nitro3thienyl)carbonyl]amino ]-N-(2,4,6trime thyIpheny1)-5thiazolec arboxami de

4.78 '^CH3

2-[[[4-[(4Chlorophenyl)thio]-3thienyl]carbonyl]amino ]-4-methyl-N-(2,4,6ch₃ trimethylphenyl)-5thi a z ο1ecarboxamide

5.27 ¹ .ch₃

RM

2-[[(5-Chloro-4methoxy-3thienyl)carbonyl] amino] -4-methyl-N1(2,4, 6trimethylphenyl)-5thiazolecarboxamide

5.04

<img file="IL170873A_D0119.tif" />

CH₃

2-[[[2-(4,5-Dihydro4,4-dimethyl-2pxazolyl)-3CH thienyl ] carbonyl ] amino ³ ]-4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

5.13

<img file="IL170873A_D0120.tif" />

ch₃

2-[[(2-Acetyl-3thienyl) carbonyl]amino j] -4-methyl-N- (2,4,6trimethylphenyl)-5thiazolecarboxamide .54

4.74

4.75

<img file="IL170873A_D0121.tif" />

WO 2004/085388

Examples 171 to 180

General Procedure

Compounds 171 to 180 were prepared following the procedure described below.

A mixture of 2 (80 mg, 0.29 mmol), appropriate isocyanate (0.87 mmol) and pyridine (2 mL) in THF (3.5 mL) was stirred at rt overnight. In some cases the reaction mixture was heated to 60-70°C for 5 h. Some of these reactions were carried out at rt overnight in the presence of catalytic N,Ndimethylaminopyridine. The reaction mixture was diluted with dichloromethane and washed with 1N aq. HC1 solution (3x), water, brme; dried (MgSO₄), filtered and concentrated. The crude product was purified either by trituration with ether or ether-hexanes mixture, or by chromatography on a silica gel column (elution solvent 20-40% EtOAc in hexanes) followed by trituration or by passing through Varian cation exchange SCX cartridge and sequentially eluted with methanol (5 mL), dichloromethane (5 mL), acetonitrile-methanol (10 mL, 4:1) and methanol2 M methanolic ammonia (10 mL, 4:1) to obtain the title compound. “HPLC Ret Tim ft” is the HPLC retention time under the following conditions: For compounds 171-172,175, and 177 HPLC conditions are: Zorbax S8-C18 4.5 mm x 7.5 cm short column, 30 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 2.5 mL/min, λ = 217 nM. For the other compounds HPLC conditions are: Zorbax S8-C18 4.5 mm x

7.5 cm short column, 8 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 2.5 mL/min, λ = 217 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 171</td><td> Ο -hZ¹’.!⁵״ ״.MZ©-־«. M₃c</td><td> 4-Methyl-2-[[(methylamino) carbonyl] amino] N-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 124.48 I</td>

<td> 172</td><td> HaC^CH</td><td> 4-Methyl-2-[[(phenylamino) carbonyl ] amino ] ־ N- (2,4, 6-trimethylphenyl)-5-thiazole- 3 carboxamide</td><td> 30.45</td>

<td> 173</td><td> Φ 2 ο=(*X ״ ^ ?&gt; Οχ J X γΓ° ־ 2</td><td> 4-Methyl-2-[[[(4methylphenyl)amino]!carbonyl] amino] -N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 8.81</td>

<td> 174</td><td> ?3^״ Z^CH3_״ ״ ».©-©©-ס h₃c</td><td> 4-Methyl-2-[[[(phenylmethyl)amino]carbonyl] amino]-N-(2,4,6trimethylphenyl)-5thiazolec arboxami de</td><td> 8.52</td>

<td> 175</td><td> 1' o / &lt;׳&gt; δ_θ η Ζ'0 Ψ ⁰S־ I</td><td> 2-[[(Butylamino) carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 30.49</td>

<td> 176</td><td> m-Z^CH3 H₃C h₃c</td><td> 4-Methyl-2- 1 [(propylamino)carbony 1]amino]-N-(2,4,6trimethylphenyl)-5shi a ζ o1ecarboxamide</td><td>⁴¹־⁷</td>

<td> 177</td><td> _ ״ ״_z^CH3 H₃C Ck ί JTCwS VV^N AcT J^K_ch.i H3C</td><td> 2-[[(Cyclohexylamino) carbonyl]amino]-4nethyl-N-(2,4,6trimethylphenyl)-5liazolecarboxamide</td><td> 27.21</td>

<td> 178</td><td> יי .י H 'ט — μ! U ζ ο ζ rס Ζ χ* ζ Ο=&lt; ζ ¢5^^/</td><td> 22))]]־-Chloro- 3henyl) amino]carbonyl] unino]-4-methyl-N2,4,6-trimethyl- | )henyl)-5-thiazole:arboxami de</td><td> 8.99</td>

<td> 179</td><td> h₃c</td><td> 2-[[[(3-Fluorophenyl) amino]carbonyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazole c arboxami de</td><td> 8.87</td>

<td> 180</td><td> CH_a ° «30^</td><td> 2-[[[(2,6-Dimethylphenyl) amino]carbonyl] amino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 8.92</td>

Example

Preparation thiazolyl! carbamic acid, phenyl ester

A10% aq. KHCO₃ solution (170 mL) was added to a stirred solution of 2 (1.02 g, 3.7 mmol) in THF (130 mL). Phenylchloroformate (1.39 mL nj mmol) was added dropwise. The biphasic mixture was stirred at rt overnight, diluted with dichloromethane (200 mL) and washed with water (50 mL, 2x) and brine. The organic extract was separated, dried (MgSOJ, filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 10% EtOAc in hexanes to obtain the title compound (980 mg, 69%) as a solid.

Examples 182 to 236

General Procedure

Compounds 182 to 236 were prepared following the procedure described below.

r~ -. -. .. ---------

A solution of phenylcarbamate 181 (20 mg, 0.054 mmol) and the appropriate amine (0.08 mmol) in THF-acetonitrile (3 mL, 1:1) was stirred at rt overnight. Some of the reactions required heating to 60 °C for 4 h to overnight. The mixture was diluted with dichloromethane (4 mL) and washed with 1 N aq. HC1 solution (1.5 mL, 2x), 1 N aq. NaOH solution (1.5 mL, 2x). The dichloromethane extract was separated, dried (MgSO₄), filtered and concentrated to obtain the title product.

‘HPLC Ret Time” is the HPLC retention time under the following conditions: For compounds 182-192 HPLC conditions are: Zorbax SB-C18

4.5 mm x 7.5 cm short column, 8 min gradient starting from 100% solvent

A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 2.5 mL/min, λ = 217 nM. For compounds 193-236 HPLC conditions are: YMC S5 ODS 4.6 x 50 mm Baflastic Column, 4 rain gradient starting from 100% solvent A (10% MeOH, 90% ¾0, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 4 mL/min, λ = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 182</td><td> h₃c</td><td> 4-Methyl-2-[[[(2phenylethyl)amino]carbonyl]amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 8.83</td>

<td> 183</td><td></td><td> 2-[[(Hexylamino) carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 9.01</td>

<td> 184</td><td> h₃c</td><td> 2-[[[(1,1-Dimethylethyl) amino]carbonyl]a mino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 8.48</td>

h₃c

<img file="IL170873A_D0122.tif" />

ch₃

H3C h₃c

<img file="IL170873A_D0123.tif" />

ch₃ ch₃h₃c

H3Q O

H₃c׳yA ^H3CXC₃״ ch₃ h₃ h₃c

<img file="IL170873A_D0124.tif" />

ch₃

- [ [ [ (3-Fluoro-4- 18.92 methylphenyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

2- [ [ [ (4-Methoxyphenyl) 8.57 amino]carbonyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

2-[[(Diethylamino) carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thi a z ο1ec arboxamide

8.19

- [ [ [Bis (1-methyl- 8.90 ethyl) amino]carbonyl]amino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide ¹⁸⁹ 0 n-T^{CH3 H3}t ch₃ h₃c

4-Methyl-2- [ [ [methyl- 8.56 (phenylmethyl) amino ] carbonyl]amino] -N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide

<img file="IL170873A_D0125.tif" />

ch₃ ch₃ H;

h₃c

<img file="IL170873A_D0126.tif" />

ch₃

4-Methyl-2- [ [ (methyl- 8.39 phenylamino) carbonyl]a mino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide ¹⁹¹ ״_/^CH3 h₃c ch₃ h₃c

- [ [ (CyclohexyImethy 1 8.84 amino)carbonyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

<img file="IL170873A_D0127.tif" />

<img file="IL170873A_D0128.tif" />

ch₃h₃c י

4-Methyl-2-[ [ [ (1-8.47 phenylethyl) amino]carbonyl]amino]-N-| (2,4,6-trimethyl-I phenyl)-5-thiazolecarboxamide

<td> 193</td><td> n-/^CH3 VV°־*x J-&lt; Λ I CH₃־,Ν ^{7 0} kl־r n₃c JLjL HgC^^CHa ־</td><td> 2-[[[(Cyclopropylmethyl) propylamino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.36</td>

<td> 194</td><td> cn X o σ» / g_/A « q )=( δ X^zy־( ^£ co יד V) O Γ Ί o</td><td> 4-Methyl-2-[[[(2methylcyclohexyl)amino ]carbonyl]amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.42</td>

<td> 195</td><td> h₃c ס N _Cu / M ✓^cm3 ^Xo ' Ϊ^Η3 H3C'^z^^־^‘CH3</td><td> 4-Methyl-2-[[[(4methylcyclohexyl)amino]carbonyl]amino]N-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.49</td>

<td> 196</td><td> n-/^CH3 XjLo r־־X ,Ή I pH₃ \7 ° ^NyS h₃c'^As*^#a,ch₃</td><td> 2-[[[(Cyclohexylmethyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolec arboxami de</td><td> 4.49</td>

<td> 197</td><td> ox )⁴ M /CH₃θ' ΗΙ,ο T QH3 VS HaC'^CHs</td><td> 2-[[[(2,3-Dihydro-lHinden-1-yl)amino] carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thi az o1ecarboxamide</td><td> 4.35</td>

<td> 198</td><td> 1Q0 \ &lt;? F שב ץ—( ο ^ωO־s / ^ω ο X _ϊ_______________1 Γ\ Η־'( _»—&lt;»—* J</td><td> l-Methyl-2-[[[(1- z laphthalenylmethyl)ami 1o]carbonyl]amino]-N:2,4,6-trimethyl3henyl)-5-thiazole:arboxamide</td><td> 1.43</td>

-IllWO 2004/085388

<td> 199</td><td> Q cr « γ &lt;? ___/ ο ο rv χ \__/ ο “ θ2־־ &gt; * ω Ο X ω</td><td> 2-[[[Bis(phenylmethyl) amino]carbonyl]amino]1-methyl-N-(2,4,6trimethylphenyl)y 5thi azo 1 ec arboxamide</td><td> 1.66</td>

<td> 200</td><td> X ! Ο οΧΛο ״־ I S « χ 1 « 2—\ X ־9 £</td><td> 2,6-Dimethyl-N- [4methyl-5-[[(2,4,6trimethylphenyl) amino]carbonyl]-2thiazolyl]-4morpholinecarboxamide</td><td> 3.97</td>

<td> 201</td><td> CH3 &lt;9^ η₃0 CH₃</td><td> 2-Ethyl-N-[4-methyl-5;[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-1piperidinecarboxamide</td><td> 4.29</td>

<td> 202</td><td> .ch₃ ? _\=ל?-יץ ־'/'!'TN ^S Ν—4^־־^ch3 &lt;9 h₃c _oA_O^^CH3</td><td> 1-[[[4-Methyl-5[[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]amino]carbonyl]-3piperidinecarboxylic acid ethyl ester</td><td> 4.10</td>

<td> 203</td><td> δ ' » ן » ^x x 1 %A&gt; oA X 2—\ O \ JO</td><td> 3,3-Dimethyl-N-[4methyl-5-[[(2,4,6trimethylphenyl) amino] carbonyl]-2thiazolyl]-1piperidinecarboxamide</td><td> 4.32</td>

<td> 204</td><td> o— / &gt; שב ^W X _-j- ^z&gt;y ״Ά&gt; T ב: 1 CP 37 x ω 1 w °Yj° 3 l ω</td><td> 1-[[[4-Methyl-5[ [ (2,4,6-trimethylphenyl)amino]carbonyl] -2-thiazolyl]amino]carbonyl]-4-. piperidinecarboxylic acid ethyl ester</td><td> 4.06</td>

<td> 205</td><td> 9 M^^CH3 ^0XN^tC0 ^s r PH3</td><td> 4-Methyl-2-[[[(3methyl-2-pyridinyl)amino] carbony1]amino]-N-(2,4,6trimethyl-phenyl)-5thiazolec arboxami de</td><td> 3.51</td>

<td> 206</td><td> co X Ο &lt;0 / ⁵־Ο ^η θ /' \ δ V²&gt;=( ² א ο</td><td> 4-Methyl-2-[ [ [1(pheny line thy 1 )-4piperidinyl]amino]carbonyl] amino] -N-, (2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 3.28</td>

<td> 207</td><td> ΡΗ3 ן ϊχ\ |ψ 1* ^S ^־־/ 4־־^CH3 ך] h₃c</td><td> Octahydro-N-[4-methyl5-[[(2,4,6-trimethylphenyl) amino]carbonyl] -2-thiazolyl]-1(2H)quino1inecarboxamide</td><td> 4.55</td>

<td> 208</td><td> ch₃ ־״^Q &lt;ג / ch₃γ—Ν ^aX־^CHsCm</td><td> 3,4-Dihydro-N-[4methyl-5-[[(2,4,6trimethylphenyl)amino] carbonyl]-2thiazolyl]-2(1H)isoquinoline carboxamide</td><td> 4.35</td>

<td> 209</td><td> CH₃ ν-4 1 9^η3 _ ζ 0 Μ 1 / ^CH3 JlJl H₃C-\ HaC^^^CHa ch₃</td><td> 2 - [ [[(1,5-Dimethylhexyl) amino]carbonyl]amino]-4-methyl-N:2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.72</td>

<td> 210</td><td> ״/^ch₃ sX־&gt;° n-4^ 1 9^H3 r ^CH3 xl א H₃C־^^־CH3 h₃c</td><td> 4-Methyl-2-[[[(1methylheptyl)amino]carbonyl ] amino ] -N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.74</td>

<td> 211</td><td> n-/^CH3 I ⁰ κ X ¹λ F13L. WI3</td><td> 2-[ [ [ [ (2-Fluoro- i. phenyl)methyl]amino]carbonyl]amino]-4nethyl-N-(2,4,6:rimethylphenyl)-5:hiazolecarboxamide</td><td> L17</td>

ί WO 2004/085388

<img file="IL170873A_D0129.tif" />

4.22

H₃C

4.36

4.13 .CH3

4.36

4.12 h₃c

4.57

3.70

CH 3

H,N

CH₃ o

ch₃ h₃c

CH3 h₃c

CH3 ch₃ h₃c

CH3 h₃c

CH3 o

CH h₃c

CH3

N

CH3 h₃c ch₃ h₃c

2- [ [ [ [ (2-Methoxy-y phenyl) methyl ] amino] carbonyl]amino]-4methyl-N-(2,4,6trimethylpheny.1) -52-[[[[(2-Ethoxy-. phenyl)methyl]amino]ca rbonyl]amino]-4methyl-N-(2,4,6trimethylpheny 1) 5 ־ך thiazolecarboxamide

2- [ [ [ [ (3-Methoxyphenyl) methyl] amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-52-[[[[(4-Chlorophenyl) methyl]amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)γ5ch₃ I thiazolecarboxamide

2-[ [ [ [ (4-Methoxy^ phenyl) methyl]amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolec arboxami de

2-[[ [ (2,2-Diphenylethyl)amino]carbonyl]amino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide

2-[[[(2-Aminoethyl) amino]-4-methyl-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide

<td> 21S</td><td> __P ^Cl,3 p-[ [ [ [2-(3-Methoxy- I4.26 /A N־־^ IL o phenyl) ethyl] amino] - \=/ N4־ S'Y* _ch carbonyl] amino]-4- 0 Μ Γ³ methyl-N- (2,4,6- trimethylphenyl)-5l^t^^1;'-^azol^ecarboxamide</td>

<td> 220</td><td> q^CH3O־CH₃ ch₃ 4.05) -3,4)-2]££ ]?מ Dimethoxyphenyl) ethyl] K / amino] carbonyl] amino] - M I PH₃ 4-methyl-N- (2,4,6- '¹ ° ׳־־kA trimethylphenyl)-5- Jl ] thiazolecarboxamide H3C׳^^CHa| ן ן</td>

<td> 221</td><td> CH 2-[ [ [ [2-(4-Methoxy- 4.25 y—\ ³ Phenyl) ethyl] amino] - # 7 carbonyl ]amino]-4- \=/ N1 ^־־ PH₃ methyl-N-(2,4,6- ⁰ NyA) trimethylphenyl)-5- JO J thiazolecarboxamide H₃ CH 3| | |</td>

<td> 222</td><td> n&gt;^ch3 4-Methyl-2-[[[(3- 4.40 ־־־j Phenylpropyl) amino] n4־־ ^s [ ch₃ carbonyl] amino]-N&gt;=x /—. ^{0 N}xAs (2,4,6-trimethyl- JLAL Phenyl) -5-thiazoleHaC^^^CHa carboxamide</td>

<td> 223</td><td> N-y^CH3 2- [[[ [2- (Cyclohex-1- 4.11 I \ N־^ A^O en-l-yl) ethyl] - \_\ N-4 _c״ amino] carbonyl] amino] - 1 0 4-methyl-N-(2,4,6- trimethylphenyl)-5H₃C^xAA_CH3 thiazolecarboxamide</td>

<td> 224</td><td>^H3V^CH3 2-[ [[[4- (1,1-. 4 ₈5----- HaCfy-^ Dimethyl ethyl) cyclo- / f hexyl] amino]carbonyl]- \־־\ amino]-4-methyl-N- /^N ״&gt;^ch3 (2,4,6-trimethyl- _Λ phenyl)-5-thiazole- -,, carboxamide Γ P^H3 H₃ CH 3 | ן ן</td>

<td> 225 Η</td><td> n-z^CH3 2- [ [[ (3-Butoxypropyl) 4.33 amino] carbonyl] amino]- z \נ ]? jr^H3 4-methyl-N- (2,4,6- oV ךץ trimethylphenyl )-5- H3cAAch₃ thiazolecarboxamide ן II</td>

<td> 226</td><td> hLz^CH3 /^0 * ' i^H3 XL *LcX \ 7׳ ch₃^{H3C CH3}</td><td> 2 - [ [ [[2-(2-Methoxyphenyl) ethyl]amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.46</td>

<td> 227</td><td> n-/^CH3 η/־ TP³ JlJL ^Cl Η₃0Ήη3</td><td> 2-[[[[(2-Chloro-4fluorophenyl) methyl]amino]carbonyl]amino] 4-methyl-N-(2&gt; 4,6trimethylphenyl)-5thiazolecarbbxamide</td><td> 4.39</td>

<td> 228</td><td> n^z^CH3 h₃c Ρ'Λ Tr³ H₃c-׳ H₃C‘^Asi־A'CH₃</td><td> 2-[[(Hexylmethylamino) carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.65</td>

<td> 229</td><td> ״X ט co _ / X /^ss\ W Z ב ץ: z ט ο</td><td> 2-[[[[l-(4-Chlorophenyl) ethyl]amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.42</td>

<td> 230</td><td> £ ο מ / ⁵־Ο מ Ο / \ ' χ k_2! o ο / £ Ζ^_ w Lo ο* ο</td><td> 2-3)-2]]]]־-Chlorophenyl) ethyl]amino]car bonyl]amino]-4-methylN- (2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.44</td>

<td> 231</td><td> M/CH3 λ yw&gt; s-\ N־i ^b ץ ch₃\—ι 0 μ ι. jlX HaC^^CHg</td><td> 4-Methyl-2-[[[[2-(2thienyl) ethyl]amino]carbonyl]amino]-N(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.18</td>

<td> 232</td><td> RxXX F ° X/\ HsC'X'CHij</td><td> 2-[[[[2-(2-Fluorophenyl) ethyl]amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 5.85</td>

<td> 233</td><td> CH₃ _/^N vX° N4־־ | pH₃ ״ Λ ^{0 N}\A O־° XX ^־־־־ H₃C^^CH3</td><td> 4-Methyl-2-[[[[2-(2pyridinyloxy)ethyl]amino]carbonyl]amino]T-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.28</td>

<td> 234</td><td>^H3qoiy ° XT³ H3C^־^׳ch₃</td><td> 2-[ [ [ [(2-Bromo-4,5dimethoxyphenyl)methyl ]methylamino1 carbonyl ] amino]-4-methyl-N(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 3.87</td>

<td> 235</td><td> NV^CH3 X ג׳ל ^c3 HaC^^CHa HaC־־(' ch₃</td><td> (E)-2-[[[(3,7Dimethyl-2,6-octadienyl) amino]-carbonyl]amino]-4-methylN-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 4.34</td>

<td> 236</td><td> ch₃ q־qjh₀ h₃c׳^_CH3</td><td> 22,3)]]]]־-Dihydro1,4-benzodioxin-2yl) methyl]amino]caroonylj amino]-4-methylbi- (2,4, 6 - trimethyl phenyl)-5-thiazolecarboxamide</td><td> 4.27</td>

General Procedure

Examples 237 to 285

Compounds 237to 285 were prepared following the procedure described 5 below.

A solution of phenylcarbamate 181 (20 mg, 0.054 mmol) and the appropriate amine (0.08 mmol) in THF-acetonitrile (3 mL, 1:1) was stirred at rt overnight. The mixture was diluted with dichloromethane (4 mL) and washed with 1 N aq. HC1 solution (1.5 mL, 2x), 1 N aq. NaOH solution .10 (1.5 mL, 2x). The dichloromethane extract was separated, dried (MgSO₄), filtered and concentrated to obtain the title product.

‘HPLC Ret Time” is the HPLC retention time under the following conditions: For compounds 237-278 HPLC conditions are: YMC S5 CDS

4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent 15 A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH,

10% H₂O, 0.2% H₃PO₄), flow rate 4 mL/min, λ = 220 nM. For compounds 279-285 HPLC conditions are: Zorbax S8-C18 4.5 mm x 7.5 cm short ! wo 2004/085388 column, 8 min gradient starting from 100% solvent A (10% MeOH, 90%

H O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 2.5 mL/min, λ = 217 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret ime min)</td>

<td> 237</td><td> F. ^H3C% o־־C? 7¹ m/^CH₃ⁿ־VN^° T 9^h3 H₃C־^^CH₃</td><td> 2-[[[[3-Methoxy-5- (trifluoromethyl) phenyl] amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 5.36</td>

<td> 238</td><td> ω ? ° /—׳ד ס X y==\ ° ^w / s 2 ω</td><td> 2 - [ [ [ (4-Cyclohexylphenyl) amino]carbonyl]amino] -4-methyl-N(2,4,6-trimethylphenyl) 5-thiazolecarboxamide</td><td> 4.73</td>

<td> 239</td><td> CO X O co . / M/ מ O / \ ± tn ג־ס XX</td><td> 4- Methyl-2-[[[(5,6,7,8tetrahydro-1naphthalenyl)amino]carbonyl]amino]-N- (2,4,6-trimethylphenyl)- 5- thiazolecarboxamide</td><td> 5.38</td>

<img file="IL170873A_D0130.tif" />

H₃C h₃c

<img file="IL170873A_D0131.tif" />

ch₃o ch₃

241 ci

<img file="IL170873A_D0132.tif" />

N CH r KU- ✓^“3 AL [ pH3 K As h₃c־ ch₃

- [ [ (1-Anthracenylamino) 14.82 carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazο1ecarboxami de

2-[[[(4-Chloro-lnaphthalenyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide !4.76

<img file="IL170873A_D0133.tif" />

ch₃ .0 .

ch₃ h₃c h₃c

<img file="IL170873A_D0134.tif" />

ch₃ ch₃ .ch₃ ,0 h₃c h₃c־ ch₃

4- Methyl-2-[[(2naphthalenylamino)carbonyl]amino]-N- !2,4,6-trimethylphenyl)-

5- thiazο1ecarboxamide

2-[[(lH-Indol-5ylamino)carbonyl]amino]4-methyl-N-(2,4,6:rimethylphenyl) -5thiaz ο1ecarboxamide

2-[[(1,3-Benzodioxol-5ylamino)carbonyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5hiazolecarboxamide

<img file="IL170873A_D0135.tif" />

<img file="IL170873A_D0136.tif" />

<td> 245</td><td> co X ο δ-ΖΛ co θ / \ V ο \י χ Η ' .,ί ο</td><td> 4-Methyl-2-[[(2-pyrazinylamino)carbonyl]amin o]-N-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide</td><td> 3.84</td>

<td> 246</td><td> Ck L mx^CH3 ⁰^AC״ ® [ Ρ^Η3 χΧ H₃C^z^^i־־^CH3</td><td> 2-[[[(5-Chloro-2pyridinyl) amino ] carbonyl ]amino]-4-methyl-N(2,4,6-trimethylphenyl)5-thiazolecarboxamide</td><td> 4.38</td>

<td> 247</td><td> H₃C-X7^ 7^Ν ״ΛΗ₃⁰MX□ Γ Ρ^Η3 Ν^Α H₃C׳A־^CH3</td><td> 4- Methyl-2-[[[(6-methyl2-pyridinyl) amino]carbonyl]amino]-N- (2,4,6-trimethylphenyl)- 5- thiazolecarboxamide</td><td> 4.44</td>

<td> 248</td><td> X » ο \ ?ζ~χ λ ω Ο X ω</td><td> 4-Methyl-2-[[[(2-methyl- 4- quinolinyl)amino] carbonyl]amino]-N- (2,4,6-trimethylphenyl) - 5- thiazolecarboxamide</td><td> 5.23</td>

<td> 249</td><td> 05 |4₃0^%143</td><td> 2-[[[(2,3-Dihydro-l, 4benzodioxin-6yl) amino]carbonyl]amino] -4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.72</td>

<img file="IL170873A_D0137.tif" />

<img file="IL170873A_D0138.tif" />

252 h₃c ⁰PH־ ch₃² ־ [ [ j [1,1' -Biphenyl ] -2 - I5 29 ylamino)carbonyl]amino]4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide h₃c־ !251 h₃cch₃

<img file="IL170873A_D0139.tif" />

ch₃ h₃c־ ,0

Γ ch₃N.

<img file="IL170873A_D0140.tif" />

ch₃ ch₃ h₃c

<img file="IL170873A_D0141.tif" />

ch₃ h₃c־ .0

PH₃

<img file="IL170873A_D0142.tif" />

2-[[[(4-Methoxy-2methylphenyl) amino]carbonyl]amino]-4-methyl-N. (2,4,6-trimethylphenyl) 5-thiaz01ecarboxamide

4-Methyl-N-(2,4,6trimethylphenyl)-2[[[(2,4,6trimethylphenyl)amino]carbonyl]amino]-5thi azo1ecarboxamide ch₃ h₃c'

<img file="IL170873A_D0143.tif" />

.ch₃ «3

<img file="IL170873A_D0144.tif" />

h₃c‘ ch₃ ch₃ .0

0h₃

<img file="IL170873A_D0145.tif" />

CH3

2-[[[[2-(2-Hydroxy- 4 θ2 ethyl) phenyl]amino]carbonyl]amino]-4-methyl-N2,4,6-trimethylphenyl)5-thiazolecarboxamide

3) ] ] ]_ ־ -Methoxyphenyl) 4 gg amino] carbonyl] amino] -4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide wo 2004/085388

<td> 255</td><td> Η₃ψ HC q % * /⁵⁵v-n H₃C־־V-&lt; ch₃ .</td><td> 2-[[[(4-Methoxy[l,l3iphenyl]-3fl)amino]carbonyl]imino] -4-methyl-N;2,4,6-trimethylphenyl)5-thiazolecarboxamide</td><td> 4.81</td>

<td> 256</td><td> V״O ^H3C '^N ״x⁰³״ a׳׳X: ^S 1 P^H3 H₃C׳^As#־־!A'CH3</td><td> 2-[[[(3-Acetylphenyl) amino] carbonyl] amino] -4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.12</td>

<td> 257</td><td> ch₃λλΗχ O ^H3C~ N</td><td> 2-[[[(4-Cyanophenyl) amino]carbonyl]amino] -4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.15</td>

<td> 258</td><td> ryV \=&lt; F _/* /^CH3^r 3^״? ז HgC^^^CHa</td><td> 2-[[[[4-Fluoro-2- (trifluoromethyl) phenyl] amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl) 5-ךthiazolecarboxamide</td><td> 4.99</td>

<td> 259</td><td>^H3C^^\- ^C^^N ״,CH3 N^JL-O ^r ץ ch₃ H₃cA&lt;A_CH3</td><td> 2-[[[(4-Hexyloxyphenyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)5ןthiazolecarboxamide</td><td> 4.42</td>

262 h₃c h₃

<img file="IL170873A_D0146.tif" />

ο

CH₃

CH!

CH3 .0 ή₃

4- [ [ [[4-Methyl-5[[(2,4, 6-trimethylphenyl) amino]carbonyl]2-thiazolyl]-aminp][carbonyl] amino] benzoic acid ethyl ester

- _[[ [ (4-Decylphenyl) amino]carbonyl]amino]-4methyl-N-(2,4,6| trimethylphenyl)-5thi az ο1ecarboxamide

4- Methyl-2-[[[(4propylphenyl) amino] carbonyl]amino]-N(2,4,6-trimethylphenyl) -

5- thiazolecarboxamide ch₃³ ר O־CH₃ h₃c־ ch₃ h₃c

H>^CH3

<img file="IL170873A_D0147.tif" />

°~^N 0״C

H3

<img file="IL170873A_D0148.tif" />

ch₃

H;

.ch₃

<img file="IL170873A_D0149.tif" />

ch₃

<img file="IL170873A_D0150.tif" />

4- Methyl-2-[[[(3,4,5- 14.67 trimethoxyphenyl)amino]1 carbonyl]amino]-N(2,4,6-trimethylphenyl)-

5- thiazο1ecarboxamide

4- Methyl-2-[[[[4-[[(5- ¢27 methyl-3-isoxazolyl) amino]sulfonyl]phenyl]- I amino]carbonyl]amino] -N|(2,4,6-trimethylphenyl)-

5- thiazolecarboxamide

<td> 265</td><td> « X ο « j— / δ-ΖΆ מ Q )—&lt; _ΟγαΥ ^1?</td><td> 4-[[[[4-Methyl-5[[(2,4,6-trimethyl phenyl) amino]carbonyl]2-thiazolyl]amino]carbonyl]-amino]benzoic acid butyl ester</td><td> 4.75 1</td>

<td> 266</td><td> 0־&lt;^Ν n-Z^CHs [ ch₃ H₃C׳^^Xi־־^CH₃ 1</td><td> 2-[[(1-Isoquinolinyl amino)carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 3.81</td>

<td> 267</td><td colspan="2">^H3C\_m η 4-Methyl-2-[ [ [ [2- PH3VCX Λ ΑΖ thio]- __/ /sR Fl Ν 1 phenyl] ammo] carbonyl] - A)׳׳^N &lt;^{S 31}״^θ!-N-(2,4,6- ^h3C׳^_\־־ i trimethylphenyl)-5- ^c3^״ if] thiazolecarboxamide</td><td> 4.42</td>

<td> 268</td><td colspan="2"> ζΛ 4-Methyl-2-[[[[4-[(5- y-* phenoxypentyl) oxy] phenyl _ ] amino] carbonyl ] amino ] - \ N-(2,4,6-trimethyl- phenyl)-5-thiazole- f carboxamide /^N ״/CHj 1 ph₃ h₃c'^^sA_CH3 ן</td><td> 4.96</td>

<td> 269</td><td colspan="2">^H3£i 2-[ [ [ [5-(1,1-Dimethyl- £ LIL &lt;^CH3ch₃ ) 2־ -me thoxy- ³V-N phenyl ]amino] carbonyl ] - ^H3C amino]-4-methyl-N- (2,4,6 - trimethylphenyl) 5-thiazolecarboxamide ch₃____________</td><td> &gt;.76</td>

<img file="IL170873A_D0151.tif" />

- [ [ [ (1,2-Dihydro-5- 14.70 acenaphthylenyl) amino]ca rbonyl]amino]-4-methylN-(2,4,6-trimethylphenyl)-5-thiazolecarboxamide

-Me thyl-2-[[[(3phenoxyphenyl) amino]c arbonyl] amino]-N(2,4, 6-trimethylphenyl)5-thiazolecarboxamide

4- Methyl-2-[[ [ [2-(4- Γδ’οΤ morpho1iny1) phenyl]- amino]carbonyl] amino]-N!2,4,6-trimethylphenyl)-

5- thiazο1ecarboxamide

4- Methyl-2-[[[[2-(1piperidinyl) phenyl]amino ]carbonyl] amino]-N(2,4,6-trimethylphenyl)-

5- thiazolecarboxamide

2- [ [ [(l-Acetyl-2,3dihydro-1H-indo1-6yl) amino]carbonyl]amino] -4-methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide

<img file="IL170873A_D0152.tif" />

4.08

<img file="IL170873A_D0153.tif" />

<td> 275</td><td> Q^Br׳°^{H3Q 3}*/’Ν. /־0 Η3σ^ΌΗ3</td><td> 2- [ [ [ (2-Bromo-5methoxyphenyl)amino]carbonyl]amino]-4-methyl-N(2,4,6-trimethylphenyl)5-thiazolecarboxamide</td><td> 4.55</td>

<td> 276</td><td> X X w ω Ο J. Α/&gt;ο X Ζ ־ Μ « ο 5=</td><td> 2-[[[(2,3-Dimethyl-lHindo1-5-yl) amino] carbonyl]amino]-4methyl-N-(2,4,6trimethyl phenyl)-5thiazolecarboxamide</td><td> 4.30</td>

<td> 277</td><td> λ/? Am CT&gt; ״-//° ^CH3 /=( ⁰ w־^CH3 h₃c</td><td> 4-Methyl-2-[[[[2-[[(1methylethyl)amino]carbonyl]phenyl]amino]carbonyl]amino]-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 4.82</td>

<td> 278</td><td> ־? c? °ך^£° “^{x 0}^jfV²־^ 3 co X -, s(\־ סס ד.</td><td> 2 - [ [ [(3-Bromo-2-methylphenyl) amino]carbonyl]amino] -4-methyl-N(2,4, 6 -יtrimethylphenyl) 5-thiazolecarboxamide</td><td> 4.60</td>

<td> 279</td><td> η Z Ο u z* / «□ . 1 ⁵ x° R ס' X</td><td> 2-[[[(4-Methoxybutyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 7.62</td>

<td> 280</td><td> H₃C</td><td> 2-[[[(3,3-Dimethylbutyl)amino]carbonyl]amino]-4-methyl-N:2,4,6-trimethylphenyl)5-thiazolecarboxamide</td><td> 9.13</td>

<td> 281</td><td> 113 V</td><td> 4- Methyl-2-[[[(2methylbutyl) amino]carbonyl]amino]-N- (2,4,6-trimethylphenyl) - 5- thiazolecarboxamide</td><td> 8.90</td>

<td> 282</td><td> 0 M¹״’ h₃c</td><td> 4-Methyl-2-[[[(3methylbutyl)amino]carbonyl]amino]-N-(2,4,6trimethylphenyl)-5thi az 01ecarboxamide</td><td> 8.98</td>

<td> 283</td><td> .CH3 h₃c</td><td> 2-[[[(2-Methoxyethyl) amino]carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl). - 5thiazolecarboxamide</td><td> 7.30</td>

<td> 284</td><td> h₃c</td><td> 2-[[[[2-(Dimethylamino) ethyl] amino] carbonyl]amino]-4methyl-N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 5.73</td>

<td> 285</td><td> .ch₃ h₃c</td><td> 4- Methyl-2-[[[[2(methylthio) ethyl]amino] carbonyl]amino]-N- !2,4,6-trimethylphenyl)- 5- thiazolecarboxamide</td><td> 8.19</td>

Examples 286 to 311

General Procedure

Compounds 286 to 311 with the exception of compound 307 were prepared 5 following the procedure described below.

A solution of 2-[[(Butylamino)carbonyl]amino]-4-methyl-5-thiazole carboxylic acid chloride (30 mg, 0.11 mmol), appropriate amine (0.12 mmol) in THF (1 mL) was treated with diisopropylethyl amine (22.6 pL, 0.13 mmol). The mixture was purged with argon and stirred mechanically 10 in a vial for 22 h, diluted with dichloromethane (4 mL) and washed with 2

N aq. HC1 solution (3x). The organic extract was separated, dried (Na₂SO₄), filtered and concentrated. The crude products were purified either by truturation with dichloromethane-ether (1:1) or by silica gel

-w chromatography (elution solvent: 80% EtOAc in hexanes followed by EtOAc) or by automatic preparative HPLC (conditions: YMC S5 CDS A 20 x 100 mm Column, 10 min gradient starting from 30% solvent B (90% MeOH, 10% H₂O, 0.1% TFA) and 70% solvent A (10% MeOH, 90% H₂O, 0.1% TFA) to 100% solvent B, flow rate 20 mL/min, λ = 220 nM. Compound 307 was prepared following the procedure described below. A suspension solution of 2-[[(Butylamino)carbonyl]amino]-4-methyl-5thiazole carboxylic acid (100 mg, 0.36 mmol), and HATU (170 mg, 0.44 mmol) in DMF (3 mL) was treated with diisopropylethyl amine (62 mL, 0.44 mmol). The mixture was heated to 60°C for 2 h, cooled, diluted with dichloromethane (12 mL), washed with 8M aq. Urea solution in 2 N aq. HC1 (6 mL, 3x), 5% aq. KHCO₃ solution (6 mL, 3x), dried (Na₂SO₄), filtered and concentrated. The residue was triturated with EtOAc-ether to obtain the mixed anhydride intermediate (102 mg, 74%) as a white solid. AIM solution of sodium bis(trimethylsilylamide) in THF (170 pL, 0.17 mmol) was added dropwise to a stirred solution of 2,6-dichloroaniline (19.4 mg, 0.12 mmol) in THF (1 mL). After 15 min, the mixed anhydride intermediate (41.3 mg, 0.11 mmol) was added in one portion. A few drops of DMF was added and the solution was stirred for 16 h. Additional 1 M solution of sodium bis(trimethylsilylamide) (110 pL) was added and the mixture was stirred for additional 2 h. The mixture was diluted with dichloromethane (4 mL) and washed with 2 N aq. HC1 solution (2 mL, 3x), satd. Aq. KHCO₃ solution (3x), dried (Na₂SO₄), filtered and concentrated. The solid was washed with hexanes (2x) and the residue was chromatographed on a silica gel column. Elution with 80% EtOAc in hexanes followed by EtOAc afforded 307 (12 mg, 27%) as a fight tan solid. ‘HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% ¾0, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 4 mT/min, λ = 220 nM.

<td> EX. NO.</td><td> !Compound Structure</td><td> Compound Name IHPLC Ret Time ((min)</td>

<td> 286</td><td> H C O</td><td> 3 2-[[ (Butylamino) U 2q ! carbonyl ] amino ] -N- (2,3-’ dihydro-1H-inden-5-y1)4-methyl-5-thiazolecarboxamide</td>

<td> 287</td><td> . O. r- /</td><td> 2-[[(Butylamino) 4 20 carbonyl]amino]-N-2naphthalenyl-4-methyl5-thiazolecarboxamide I 1</td>

<td> p88</td><td> Mr Q o^A&gt;-n OH 1 ^S1Y”^N</td><td> iL [[ (Butylamino) 4 24 carbonyl] amino]-N-(3hydroxy-2-naphthalenyl)-4-methyl-5thiazolecarboxamide</td>

<td> 1289</td><td> H3Q H CH₃ F</td><td> 2-[[(Butylamino) 3 95 carbonyl]amino]-N-(2fluoro-5-methylphenyl) 4-methyl-5thiazolecarboxamide 1 1</td>

<td> 290</td><td> H c Q /^^ch3 VV ^N CH₃ 1 I [f^{N c} CH 3_________________________</td><td> 2-[[ (Butylamino) 37g carbonyl ] amino] -N- (2,6-( limethylphenyl)-4nethyl-5-thiazole:arboxamide</td>

<td> 291 I t</td><td> HaCs^-s^Br J Tj Π ^fcO CH3 &lt;3^</td><td> ϊ-(4-Bromo-2- 412 !ethylphenyl)-2- [ (butylamino) carbonyl] mino]-4-methyl-5hiazolecarboxamide I</td>

WV ί»Η/Ι»ΟΛ»Οβ

<td> 292</td><td> n u. X m u מ \=/ x / ץ X מ \=cf 1 X £</td><td> N- (3-Bromo-2,4,6trimethyIphenyl)-2[[(butylamino)carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 4.28</td>

<td> 293</td><td> X CP yx ζχ״“ \_/ X i /⁼\^w f? X 2 ^zaJ״ ω /—( ^W&gt;yiSZ ג X w</td><td> 2-[[(Butylamino) carbonyl]amino]-N-[2,6dimethyl-3-(1methylethyl)phenyl]-4methyl-5thiazolecarboxamide</td><td> 4.28</td>

<td> 294</td><td> H3C \==( ^M ch₃ Br</td><td> N-(2-Bromo-4,6dimethylphenyl)-2[[(butylamino)carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 4.00</td>

<td> 295</td><td> h₃c '—N y־N ⁰ y״ S COOCH3 h₃c</td><td> 3-[[[2-[[(Butylamino) carbonyl]amino]-4methyl-5-thiazolyl]carbonyl] amino]-4methyl-2-thiophenecarboxylic acid methyl ester</td><td> 3.83</td>

<td> 296</td><td> o' r^CH’ PcR״ χγγ^Ν H₃C Ν־^ζχ*^χ</td><td> 2-[[(Butylamino) carbonyl]amino]-4methyl-N-(2-methyl-6quinolinyl)-5thiazolecarboxamide</td><td> 2.98</td>

<td> 297</td><td> &lt;.&gt; X Ο _οΛ₂ y־-—A «&gt; cn Z 0-0 ¹ σ \ / ־°׳o o v—y « X</td><td> 2-[[(Butylamino) carbonyl]amino]-N-(2,6dimethoxyphenyl)-4methyl-5-thiazolecarboxamide</td><td> 3.39</td>

<td> 298</td><td> CO־' h₃c׳°</td><td> 2-[[(Butylamino) carbonyl]amino]-N-(4methoxy-2-naphthalenyl)-4-methyl-5thiazolecarboxamide</td><td> 4.31</td>

<td> 299</td><td>_ΟΛ_Ζ ^S=°״ ^χ Ζ X ο</td><td> 3 2-[[ (Butylamino) carbonyl] amino] -N- (2methyl-1-naphthalenyl)4-methyl-5-thiazolecarboxamide</td><td> 3.92</td>

<td> 300</td><td> CH₃ CH3 HsC^J^N. 1 1Γ ^CH־irV'^CHa &lt;, £ CH₃ n-Z 71 ⁰_ζ&lt;*Λη</td><td> 2-[[(Butylamino) carbonyl]amino]-N-[4(dimethylamino)2,3,5,6-tetramethylphenyl]-4-methy1-5thiazolecarboxamide</td><td> 3.14</td>

<td> 301</td><td> « X °^z -JP ^⁰n ^X Z X O</td><td> 2-[[(Butylamino) carbonyl]amino]-N-(6methyl-5-quinolinyl)-4methyl-5thiazolecarboxamide</td><td> 3.13</td>

<td> 302</td><td> Z~CH₃^H3Xn V s⁷־־ ?^H ο,Λ M -X/N LJL ^׳^CHa</td><td> 2-[[(Butylamino) carbonyl]amino]-N-[2(2-hydroxyethyl)-6methylphenyl]-4-methyl5-thiazolecarboxamide</td><td> 3.50</td>

<td> 303</td><td> H3Q ⁰ y־s ch₃ 0־ ^H‘^c %cV</td><td> 2-[[(Butylamino) carbonyl]amino]-N-(2,6dimethyl-3nitrophenyl)-4-methyl5-thiazolecarboxamide</td><td> 3.75</td>

<td> 304</td><td> H3C &gt;=־( ch₃ H₃C Br.</td><td> 5J- (2-Bromo-3,4,6trimethylphenyl)-2: [(butylamino)carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 4.12</td>

<td> 305</td><td> ΗΓ ⁰ r—/^ Pc^ OHl ^S k^Jy׳CH₃ 0</td><td> SF-(2-Acetyl-61ydroxypheny1)-2:[(butylamino)carbonyl] amino] -4-methyl-5:hiazolecarboxamide</td><td> 3.75</td>

<td> 306</td><td> H₃aF^H* T~ch₃Q^O (/*Τ'CH, h₃c~Z °</td><td> [4-[[[2-[[(Butylamino) carbonyl] amino]-4methyl-5-thiazolyl]carbonyl] amino]2,3,5,6-tetramethylphenyl]carbamic acid 1,1-dimethylethyl ester</td><td> 4.10</td>

<td> 307</td><td> ο-ΖΛ r x θ 1 '^ω &lt;״&gt; z</td><td> 2-[[(Butylamino) carbonyl] amino] ^-N- (2,6dichlorophenyl)-4methyl-5thiazolecarboxamide</td><td> 4.42</td>

<td> 308</td><td>_zch₃ ch₃</td><td> N-(4-Amino-2,3,5,6tetramethylphenyl)-2[[(butylamino)carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 3.15</td>

<td> 309</td><td> ‘ Ab h₃c^n 0</td><td> N-[5-(Acetylamino)-2,4dimethylphenyl]-2[ [ (butylamino) carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 3.52</td>

<td> 310</td><td> m 1 m / 1 « ־ * ⁵־Ό « zo o )= °^Xz Λ X</td><td> N-(4-Bromo-2,6dimethylphenyl)-2[ [ (butylamino) carbonyl] amino]-4-methyl-5thiazolecarboxamide</td><td> 4.93</td>

<td> 311</td><td> CH₃. AAA-״</td><td> 2-[[(Butylamino) carbonyl]amino]-N-(2chloro-6-methylphenyl) 4-methyl-5thiazolecarboxamide</td><td> 4.51</td>

Example

Preparation trimethvlphenyl)-5־thiazolecarboxamide

<img file="IL170873A_D0154.tif" />

. Ethvl-2-r(methvlsulfonvl)amino]-4-methvI-thiazole-5-carboxvlate

A stirred solution of ethyl-2-amino-4-methyl-thiazole-5-carboxylate (558 mg, 3 mmol) in dichloromethane (15 mL) and pyridine (5 mL) was treated with methanesulfonyl chloride (687 mg, 6 mmol) at rt overnight. The solution was diluted with dichloromethane (50 mL) and washed with 2N aq. HC1 solution (15 mL, 3x), dried (MgSO₄), filtered and concentrated. The crude residue was diluted with ether (25 mL) and the solid was filtered, washed with 1:1 ether:hexane mixture (10 mL, 3x), and dried in vacuo to obtain the title compound (687 mg, 87%) as an off-white solid.

B. 2-[(Methvlsulfonvl)amino1-4-methvl-thiazoIe-5-carboxylic acid

A stirred solution, of Ethyl-2-[(methylsulfonyl)amino]-4-methyl-thiazole-5carboxylate (300 mg, 1.14 mmol) in methanol (9 mL) was treated with a IN NaOH solution (28.4 mL, 28.4 mmol). The mixture was stirred at rt 15 overnight. The solution was cooled to 0 °C and acidified with 6N aq. HC1 solution to pH 1. The solution was extracted with dichloromethanechloroform mixture. The organic extract was dried (MgSO4), filtered and concentrated in vacuo to obtain the title acid (148 mg, 55%).

²⁰ C.4-Methvl-2-r(methvlsulfonvl)amino1־N2.4.6)־-trimethvlnhenvl)-5thiazolecarboxamide Diisopropylethylamine (87 pL, 0.5 mmol) was added to a solution of 312 B (99 mg, 0.42 mmol), 2,4,6-trimethylaniline (68 pL, 0.5 mmol), and [0-(7azabenzotriazol-l-yl)-l,l,3,3-tetramethyluronium]hexafluorophosphate (HATU, 191 mg, 0.5 mmol) in DMF (3 mL). The mixture was stirred at rt overnight, diluted with EtOAc and washed with 0.5 N aq. HC1 solution (15 mL), 10% aq. LiCl solution (25 mL, 3x), water (930 mL, 2x), brine, dried (MgSO₄), filtered and concentrated. The residue was chromatographed on a silica gel column and eluted with 50% EtOAc in hexanes, followed by % EtOAc in hexanes and 2% MeOH in EtOAc to obtain the title compound (19 mg, 13%) as a white solid.

WU

Example

Preparation trimethvlphenvl)-5-thiazolecarboxamide

<img file="IL170873A_D0155.tif" />

A solution of 2 (45 mg, 0.16 mmol) and phenylisothiocyanate (43 mg, 0.32 mmol) in pyridine (2 mL) was heated to 80°C for 20 h. The mixture was cooled, diluted with dichloromethane-THF mixture (80 mL, 3:1) and washed with 2 N aq. HC1 solution (15 mL, 2x). The organic extract was dried (MgSO₄), filtered and concentrated. The residue was diluted with EtOAc (20 mL) and the solid was filtered, washed with ether (10 mL, 3x), and dried in vacuo to obtain the title compound (35 mg, 52% ) as an offwhite solid.

Example

Preparation of 2-ii(Ethylamino)carbonyllaminol-4-methvl-N-(2,4,6trimethvlphenvl)-5-thiazolecarboxamide

<img file="IL170873A_D0156.tif" />

Compound 314 was prepared by an analogous method as that of compounds 171-180, using ethylisocyanate to give the title compound 314 as a white solid (65%).

Example

Preparation of N-(2-Chloro-6-methylphenyl)-2[(cvclopropvlcarbonvl)aminol-5-thiazolecarboxarm'rlp ³- Ethvl-2-tert-butoxvcarbonyloxyamino-4-methvl־thiazole-5-carboxylate A suspension of ethyl-2-amino-thiazole-5-carboxylate (972 mg, 6 mmol, B. Plouvler, C. Bailly, R. Houssin, j-P. Henlchart Heterocyles 32(4), 693-701, 1991 and H. J. Becker, J. de Jonge Rec. Trav. Chim, 61, 463,1942), di-tbutyldicarbonate (1.94 g, 9 mmol) and 4-dimethylaminopyridine (73 mg, 0.6 mmol) in dry tetrahydrofiiran (75 mL) was stirred under nitrogen for 24 h. The solvent was evaporated in vacuo. The residue was suspended in ether (50 mL). The solid was washed with ether (10 mL, 3x), and dried in vacuo to obtain the title compound (1.1 g, 70%).

B. 2-ferf-butoxycarbonvloxvamino-thiazoIe-5-carboxylic acid

A stirred solution of ethyl-2-teri-butoxycarbonyloxyamino-4-methylthiazole-5-carboxylate (1.1 g, 4.2 mmol) in tetrahydrofuran-methanol (80 mL, 1:1) was treated with a 6N aq. NaOH solution (20 mL, 120 mmol). The mixture was stirred at rt for 24 h. Most of THF and methanol were removed by distillation under reduced pressure and the aq. Solution was acidified with 6 N aq. HC1 solution (22 mL). The precipitated solid was filtered, washed with water and ether, air dried followed by drying in vacuo to obtain the title acid (940 mg, 96%) as an off-white solid.

— acid, 1.1-dimethvl ethyl ester

A 2 M solution of oxalyl chloride in dichloromethane (1 mL, 2 mmol) was added dropwise to a stirred solution of 2-teri-butoxycarbonyloxyaminothiazole-5-carboxylic acid (234 mg, 1 mmol) in THF (10 mL) and N,Ndimethyl formamide (few drops).The solution was stirred at rt for 4 h. The 10 solvent was evaporated under reduced pressure, and in vacuo to obtain the crude acid chloride.

2-Chloro-6-methyl aniline (212 mg, 1.5 mmol) was added dropwise to a stirred solution of crude 2-ie,t-butoxycarbonyloxyamino-thiazole-5carboxylic acid chloride (1 mmol) in dichloromethane (10 mL) at 0°C.

Dnsopropylethylamine (516 mg, 4 mmol) was added. The solution was allowed to wairo to rt and stirred for 24 h, diluted with dichloromethane (60 mL) and washed with 2 N aq. HC1 solution (15 mL). The organic extract was dried (MgSOJ, filtered and concentrated. The residue was diluted with EtOAc-ether (25 mL, 1:4) and the solid was filtered and washed with ether (5 mL, 4x), and dried in vacuo to obtain the title compound (175 mg, 48%) as a tan solid.

D._2-Amino-N-(2-chloro-6-methvlphenyl)- 5-thiazolecarboxamide

Compound 315D was prepared by an analogous method as that of 2, 25 . except using compound 315C to give the title compound 315D as a tan solid.

E. 2-i(Cyclopropylcarbonyl)aminol-N-(2-chloro-6-methvlphenvl)-5thiazolecarboxamide

A solution of 315D (50.6 mg, 0.19 mmol) and cyclopropanecarboxylic acid anhydride ( 302 mg, 1.96 mmol) in dioxane (2 mL) was heated to 93 °C overnight. The mixture was concentrated in vacuo, diluted with EtOAc and washed with satd. Aq. KHCO₃ solution (2x). The organic extract was dried (Na₂SO₄), filtered and concentrated. The residue was triturated with ether to obtain the title compound (11 mg, 17%) as a white solid.

Example

Preparation

671nethylphenyl)-5-thiazolecarboxamide /A ״Z ^,.¹לזלץ ^h3C ch₃ h₃c^

Sodium hydride (19.2 mg, 0.8 mmol) was added to a solution of 315D (48.3 mg, 0.18 mmol) and t-butylisocyanate (41 gL, 0.36 mmol) in THF (5 mL) at 0 °C. After 1 h, the mixture was diluted with EtOAc and washed with cold satd. Aq. Ammonium chloride solution. The aqueous layer was separated and extracted with EtOAc. The EtOAc extracts were combined, dried (Na₂SO₄), filtered and concentrated. The residue was purified by automatic preparative HPLC (conditions: YMC S5 ODS A 20 x 100 mm Column, 10 min gradient starting from 10% solvent B (90% MeOH, 10% H2O, 0.1% TFA) and 90% solvent A (10% MeOH, 90% H2O, 0.1% TFA) to 100% solvent B, flow rate 20 mL/min, λ = 220 nM to obtain the title compound (18 mg, 28%) as an off-white solid.

Example

Preparation

L2,4,6-trimethylphenyl)-5-thiazoleacetamidR

H;

Compound 317 was prepared by an analogous method as that of 1, except’ using methyl-2־amino-4-methyl-thiazole-5-acetate to give the title compound 317 as an off-white solid.

Example

Preparation of 2-Amino-4-methvl-N-(2,4.6-trimethylphenyl)-5thiazoleacetamide

Compound 318 was prepared by an analogous method as that of 2. except using 317 to give the title compound 318 as a light brown solid.

Example

Preparation of N-(2-Chloro-6-methylphenvl)-2-r(4.6-d1mRthvl-2pyridinyDaminol-S-thiazolecarboxamirlft

<img file="IL170873A_D0157.tif" />

³2 ־dBromo-N-(2-chloro-6-methylpl1envl)- 5-thiazolecarboxamidp

A solution of copper (Π) bromide (2.68 g, 12 mmol) in acetonitrile (50 mL) was purged with nitrogen and cooled to 0 °C. t-Butyl nitrite (2 mL, 15 mmol) was added, followed by a solution of compound 315D (2.68 g, 10 mmol) in ־acetonitrile (50 mL), The mixture was stirred at rt overnight and concentrated in vacuo. The residue was dissolved in EtOAc, washed with satd. Aq. NaHCO₃ solution and the precipitate was removed by filtration. The organic extract was dried (Na₂SO₄), filtered and concentrated. The residue was ciystallized from EtOAc/ether/hexanes mixture to obtain the title compound (1.68 g, 51%) as a yellow solid.

^N:.(2-Chloro-6-methvlphenvl)-2-f(4.6-dimethvl-2-pyridinvl)_aminol-5thiazolecarboxamide

95% Sodium hydride (15 mg) was added to a mixture of 319A (25 mg, 20 0.075 mmol) and 4,6-dimethyl-2-aminopyridine (37 mg, 0.302 mmol) in

THF (1 mL). The mixture was heated to 60 °C overnight, cooled to rt and diluted with satd. Aq. Ammonium chloride solution. The mixture was extracted with EtOAc (2x). Organic extracts were combined, washed with water and dried (Na^O,), filtered and concentrated. The residue was 25 triturated with ether to obtain the title compound (17.5 mg, 63%) as a tan solid.

Example

Preparation of N-(2-Chloro-6-methylphenyl)-2־r(4־ethyl-2pyr!dinyl)ammol-5-th.iazolecart>oxamide

<img file="IL170873A_D0158.tif" />

Compound 320 was prepared by an analogous method as that of 319B, except using 4-ethyl-2-aminopyridine to give the title compound 320.

Example

Preparation

BYrimidinyl)aminol-5-thiazolecarboxamide

<img file="IL170873A_D0159.tif" />

Compound 321 was prepared by an analogous method as that of 319B, 15 except using 2,6-dimethyl-4-aminopyrimidine to give the title compound 321.

־

Example

Preparation of .N₇(2-Chloro-6-methylphenvl)-2־3)־pyridazinvlamino)-5thiazolecarboxamide o h₃c־

Compound 322 was prepared by an analogous method as that of 319B, except using 3-aminopyridazine to give the title compound 322.

Examples 323 to 335

General Procedure

Compounds 323 to 335 were prepared following the procedure described below. Diisopropylethyl amine (60 pL, 0.34 mmol) was added to a mixture of amine 144 (31 mg, 0.11 mmol), appropriate carboxylic acid (0.13 mmol), l-hydroxy-7-azabenzotriazole (19.5 mg, 0.14 mmol), and ethyl-3-(3dimethylamino)-propyl carbodiimide hydrochloride (26.8 mg, 0.14 τητηη!) in THF (0.4 mL). The mixture was heated in a sealed tube קוו H er argon at 50 °C for 24 h. The reaction mixture was diluted with dichloromethane (4 mL) and washed with 1N aq. HC1 solution. The dichloromethane solution was passed through a Varian Mega Bond Elut SCX cation exohange column (prewashed with methanol and equilibrated with acetonitrilemethanol (4:1). The column was eluted sequentially with acetonitrilemethanol (4:1), methanol-2M methanolic ammonia (4:1). Fractions containing the product were combined and concentrated in vacuo. “HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 CDS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% H2O, 0.2% H3PO4) to % solvent Β (90% MeOH, 10% H2O, 0.2% H3PO4), flow rate 4 mL/min, λ = 220 nM.

^!EX. Compound Structure NO.

324 o h-/^ch־ a ” ra ־ kMi ³²⁷ ״ m__/^CH3 Cl

<img file="IL170873A_D0160.tif" />

<img file="IL170873A_D0161.tif" />

Compound Name

HPLC

Ret Time

N-(2-Chloro-6-methylphenyl)-4- 3.70 methyl-2-[(2-thienylcarbonyl)amino] ־5־ thiazolecarboxamide

N-(2־Chloro-6-methylphenyl)-2- 3.41 [(cyclopropylcarbonyl)amino]-4methyl-5-thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-4- 3.49 methyl-2-[(2-furanylcarbonyl)amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-4- 3.71 methyl-2-[(3-thienylcarbonyl)aminol-5-thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-4- 3.57 methyl-2-[(3furanylcarbonyDaminol-5thiazolecarboxamide ־” Kmc ^V ftc trans-N-(2-Chloro-6- 4.09

J[|methylphenyl)-4-methyl-2-[[(2f ךphenylcyclopropyl)carbonyl]amin o]-5-thiazolecarboxamide

<img file="IL170873A_D0162.tif" />

N-(2-Chloro-6-methylphenyl)-4- 3.65 methyl-2-[[(2-m ethylcyclopropyl)carbonyl] amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.63 [(cyclobutylcarbonyl)amino] -4methyl-5-thiazolecarboxamide

<td> 331</td><td> ο Z O x \ J״ o frOx.</td><td> N N-(2-Chloro-6-methylphenyl)2-[(cyclopentylcarbonyl)amino]-4. methyl-5-thiazolecarboxamide</td><td> 3.82</td>

<td> 332</td><td></td><td> N-(2-Chloro-6-methylphenyl)-4methyl-2-[(2־methyl-loxopropyl)amino] -5thiazolecarboxamide</td><td> 3.50</td>

<td> 333</td><td></td><td> N-(2-Chloro-6-methylphenyl)-4methyl-2- [(l-oxopentyl)amino] -5;hiazolecarboxamide</td><td> 3.79</td>

<td> 334</td><td> r!3C</td><td> N-(2-Chloro-6-methylphenyl)-4methyl-2-[(2-methyl-loxopentyl)amino] -5;hiazolecarboxamide</td><td> 3.90</td>

<td> 335</td><td> ״ CH₃,</td><td> 2־(Benzoylamino)-N-(2-chloro-6- methylphenyl)-4-methyl-5- ;hiazolecarboxamide</td><td> 3.79</td>

Examples 336 to 362

General Procedure

Compounds 336 to 362 were prepared by an analogous method as that of 323-335, except using 315D in place of 144. The crude products were purified by automatic preparative HPLC (conditions: YMC S5 ODS A 20 x 100 mm Column, 10 min gradient starting from 10% solvent B (90% MeOH, 10% H2O, 0.1% TFA) and 90% solvent A (10% MeOH, 90% H2O, 10 0.1% TFA) to 100% solvent B, flow rate 20 mL/min, λ = 220 nM to obtain the title compounds 336-362.

HPLC Ret Time is the HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% H2O, 0.2% H3PO4) to % solvent B (90% MeOH, 10% H2O, 0.2% H3PO4), flow rate 4 mL/nrin, λ = 220 nM.

<img file="IL170873A_D0163.tif" />

Compound Structure

<img file="IL170873A_D0164.tif" />

<img file="IL170873A_D0165.tif" />

<img file="IL170873A_D0166.tif" />

<img file="IL170873A_D0167.tif" />

Compound Name [HPLC

Ret Time —-----(min)

N-(2-Chloro-6-methylphenyl)-2- 3.53 [(l-oxopropyl)amino] -5thiazolecarboxamide |N-(2-Chloro-6-methylphenyl)-2- 3.61 [(l-oxobutyl)amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.54 [(2-ethyl-l-oxobutyl)amino]-5- I thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.86 [[(1-phenylcyclopropyl)carbonyl]amino]-5- I thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.53 [[(1-m ethylcyclopropyl)carbonyl] amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.53 [[(2,2-dichIoro-l-methylcyclopropyl)carbonyl]amino]-5- I thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.53 [[(2-methylcyclopropyl)carbonyl]amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2- 3.58 [[(1-hydroxycyclopropyl)[carbonyl] amino]-5-thiazolecarboxamide

־ ״ z\ h₃c

Me Me

N-(2-Chloro-6-methylphenyl)-2[[(2,2,3,3-tetramethylcyclopropyDcarbonyl] amino]-5thiazolecarboxamide_______

N-(2-Chloro-6-methylphenyl)-2[[(1-cyanocyclopropyl)carbonyl] amino]-5-thiazolecarboxamide

3.69

3.53

N-(2-Chloro-6-methylphenyl)-2[(cyclobutylcarbonyl)amino] -5thiazolecarboxamide

3.52

<td> 347</td><td></td><td> N-(2-Chloro-6-methylphenyl)-2- [(cyclopentylcarbonyl)amino]-5thiazolecarboxamide</td><td> 3.59</td>

<td> 1348</td><td></td><td> N-(2-Chloro-6-methylpl1enyl)-2- [(cyclohexylcarbonyl)amino]-5thiazolecarboxamide</td><td> 3.78</td>

<td> 349</td><td></td><td> N-(2-Chloro-6-methylphenyl)-2[(phenylacetyl)amino]-5thiazolecarboxamide</td><td> 13.62</td>

<td> 350</td><td></td><td> N-(2-Chloro-6-methylphenyl)-2- [(cyclohexylacetyl)amino]-5thiazolecarboxamide</td><td> '4Ό7</td>

<td> 351</td><td></td><td> Nr2)־-Chloro-6-methylphenyl)-2- .(4-pyridinylacetyl)aminol-5- ;hiazolecarboxamide</td><td> 3.75</td>

<td> 352</td><td> o=-^ \\---- zo Y=ar R t־&gt;—/ &lt;u Φ</td><td> M’-(2-C111oro-6-methylphenyl)-2[(2,5-dimethyl-lH-pyrrol-3^)carbonyl] amino] -5hiazolecarboxamide</td><td> 3J7</td>

<td> 353</td><td> ΤΑΰζΓί</td><td> tf-(2-Chloro-6-methylphenyl)-2- '2-pyridinylcarbonyl)amino]-5hiazolecarboxamide</td><td> Ϊ07</td>

V w.

k^k

<img file="IL170873A_D0168.tif" />

“ k^k k^k k^k

<img file="IL170873A_D0169.tif" />

c/^k

Preparation

N-(2-Chloro-6-methylphenyl)-2[(3-pyridinylcarbonyl)amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2[(4-pyridinylcarbonyl)amino]-5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2[(3-thienylcarbonyl)aminol -5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2[(2-thienylcarbonyl)amino] -5thiazolecarboxamide

N-(2-C111oro-6-methylphenyl)-2[(2-furanylcarbonyl)amino] -5thiazolecarboxamide

N-(2-Chloro-6-methylphenyl)-2[(3-furanylcarbonyl)amino] -5thiazolecarboxamide trans-N-(2-Chloro-6methylphenyl)-2-[[(2xjphenylcyclopropyl)carbonyl] amin

o]-5-thiazolecarboxamide

<img file="IL170873A_D0170.tif" />

N-(2-Chloro-6-methylphenyl)-2[(2-methyl-l-oxopentyl)amino]-5thiazolecarboxamide

2-(Benzoylamino)-N-(2-chloro6־methylphenyl)-5thiazolecarboxamide

Example thiazolecarboxamide

3.07

3.61

3.60

3.61

3.61

3.69

3.98

3.90

3.61

Compound 363 was prepared by an analogous method as that of 315, except using 2,6-dimethylamline to give the title compound 363.

¾-r

<img file="IL170873A_D0171.tif" />

Example

Preparation of 2-[(Cyclopropvlcarbonyl)aminol-N-(2.4.6-trimethvlnhenvl)10

5-thiazolecarboxamide

<img file="IL170873A_D0172.tif" />

Compound 364 was prepared by an analogous method as that of 315, except using 2,4, 6-trimethylaniline to give the title compound 364.

Example

Preparation

Iicyclopropvlcarbonyl)aminol-5-thiazolecarboxamide

<img file="IL170873A_D0173.tif" />

Compound 365 was prepared by an analogous method as that of 315, 20 except using 2-chloro-4,6-dimethylaniline to give the title compound 365.

־

Example

Preparation of [4- 12-0x0-2-Γ(2,4.6-trimethvlphenyl)am1 no!ethyl]9thiazolyl]carbamic acid 1.1-dimethvlethyl ester

<img file="IL170873A_D0174.tif" />

Compound 366 was prepared by an analogous method as that of 1 except, using 2-tert-butoxycarbonyloxyamino-thiazole-4-acetic acid to give the title compound 366 as a white solid.

Example 367

Preparation of 2-Amino-N-(2,4,B-trimethvlnhenvlM-thiazoleacetemide

<img file="IL170873A_D0175.tif" />

Compound 367 was prepared by an analogous method as that of 4, except using 365 to give the title compound 367 as a white solid.

Example

Preparation of 2-Methyl-5-nitro-N-(2.4.6-trimethylphenvDbenzR_mide

<img file="IL170873A_D0176.tif" />

Compound 368 was prepared by an analogous method as that of 3, except using 2-methyl-5-nitrobenzoic acid to give the title compound 368 as a white solid.

Example 369

Preparation of 5-Amin0-2-_methTl-N-(2.4.6-trimethvl_Dhenvl)hen,A_mid_o h₂

10% Palladium on charcoal (30 mg) was added to a stirred solution of 368 (149 mg, 0.5 mmol) in EtOAc (50 mL). The reaction flask was equipped with a hydrogen filled balloon via a three-way stopcock. Air inside the flask was evacuated under reduced pressure and the flask filled with hydrogen from the balloon. After 4 h, the catalyst was filtered, washed with EtOAc (5 mL, 5x). The filtrate was concentrated to obtain the title compound (133 mg, 99%) as a white solid.

Example

Preparation of 2-Amino-5־chloro-N-(2,4.6-trimethvlphenvl)- 4 pyrimidinecarboxamidR

Cl

Compound 370 was prepared by an analogous method as that of 3, except 20 using 2-amino5־-cl11oro-pyrimidine-4-carboxylic acid to give the title compound 370 as a white solid.

Example

Preparation of [4-Methvl-5-[[(2.4.6-trimethvlphenvl)amino1carbonvI1- 2oxazolyll carbamic acid 1,1-dimethylethvl ester

<img file="IL170873A_D0177.tif" />

Compound 371 was prepared by an analogous method as that of 1, except using 2-teri-butoxycarbonyloxyamino-4-methyl-5-oxazolecarboxylic acid to give the title compound 371 as a light yellow foam.

Example

Preparation of 2-Amino-4-(methyl)-N-(2.4,6-trimethvlphenyl)-5oxazolecarboxamide, trifluoroacetate (1:1)

<img file="IL170873A_D0178.tif" />

Compound 372 was prepared by an analogous method as that of 4, except using 369 to give the title compound 372 as a white solid.

Example

Preparation of 2-Amino-N-(2.4.6-trimethylphenyl)-5־pvridinecarboxamide

<img file="IL170873A_D0179.tif" />

Compound 373 was prepared by an analogous method as that of 3, except using 6-aminonicotinic acid to give the title compound 373 as a white solid.

Example

Preparation 3-Amino-N-(2₁4,6-tri_methylphenvl)-4-pvridinecarboxf_lmidA

<img file="IL170873A_D0180.tif" />

Compound 374 was prepared by an analogous method as that of 3, except 10 using 3-amino-4-pyridinecarboxylic acid to give the title compound 374 as a white solid.

Example

Preparation pyrimidinecarboxamide

<img file="IL170873A_D0181.tif" />

Compound 375 was prepared by an analogous method as that of 3, except using 2-amino-4-methyl-5-pyrimidinecarboxylic acid to give the title 20 compound 375 as a white solid.

IT....־.... ' ~.....

Example

Preparation of N-i2-Chloro-6-methylphenvl)-2-F(4-methyl-2P_vridinyl)amino]-5-thiazolecarboxaTm־dp

<img file="IL170873A_D0182.tif" />

Compound 37β was prepared by an analogous method as that of 319B, except using 2-amino-4-methyl-pyridine to give the title compound 376 as an off-white solid.

Example

Preparation of 2-F(6-Amino-2-pvridinvl)aminol-N-(2-chloro-6I5§.thylphenvl)-5-thiazolecarboxam1dp

<img file="IL170873A_D0183.tif" />

Compound 377 was prepared by an analogous method as that of 319B, except using 2,6-diaminopyridine to give the title compound 377 as a light brown solid solid.

־

Example

Preparation of N2)־-Chloro-6־methvlphenyl)-2-r(6-propvl-2Pvridinyl)aminol-5-thiazolecarboxamide

<img file="IL170873A_D0184.tif" />

Compound 378 was prepared by an analogous method as that of319B, except using 2-amino-6-propyl-pyridme to give the title compound 378 as an off-white solid.

Example

Preparation of N-(2-Chloro-6-methylphenvl)-2־ri6-ethvl-4PVrimidinyl)aminol-5-thiazolecarboxemir)f>

<img file="IL170873A_D0185.tif" />

Compound 379 was prepared by an analogous method as that of 319B, except using 4-amino-6-ethyl-pyrimidine to give the title compound 379 as a white solid.

Examples 380 to 409

General Procedure

Compounds 380 to 409 were prepared by an analogous method as that of

319B. For the following examples 380 to 527 “HPLC Ret Time״ is the

HPLC retention time under the following conditions: YMC S5 CDS 4.6 x 50 mm Ballastic Column, 4 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.2% H₃PO₄) to 100% solvent B (90% MeOH, 10% H₂O, 0.2% H₃PO₄), flow rate 4 mL/min, λ = 220 nM. Where used, “HPLC Ret Time ״B״׳ is the HPLC retention time under the following conditions:

YMC S5 CDS 4.6 x 33 mm Turbo Column, 2 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.1% TFA) to 100% solvent B (90% MeOH, 10% H₂O, 0.1% TFA) with lmin at 100% solvent B, flow rate 4 mL/min, λ = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> ־HPLC ! Ret Time /mini 1</td>

<td> 380</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-(2-pyridinylamino)-5- thiazolecarboxamide</td><td> 3.337</td>

<td> 381</td><td></td><td>^lN-(2-Chloro-6-methylphenyl)2-[(6-methyl-2pyridinyDamino] -5thiazolecarboxamide</td><td> 3.61</td>

<td> 382 383 384</td><td> -_______________________________ ¹He ___________________________________________________________________________________________________________________________,____</td><td>^,N-(2-Chloro-6-methylphenyl)2-[(5-methyl-2- _י3yridinyl)amino]-5;hiazolecarboxamide 'N-(2-Chloro-6-methylphenyl)2-[(4-methyl-2pyridinyl)amino]-5hiazolecarboxamide_____ N-(2-Chloro-6-methylphenyl)2-[(3-methyl-23yridinyl)amino] -5hiazolecarboxamide</td><td> 3.487 3.293 Γ243</td>

<td> 385</td><td> W05</td><td> '2-[(5-Bromo-3-methyl-2pyridinyl)amino] -N-(2-chloro-6methylphenyl)-5thiazolecarboxamide</td><td> 4.17</td>

<td> 386</td><td></td><td> '2-[(6-Amino-2- pyridinyl)amino] -N-(2-chloro-6- methylphenyl)-5- thiazolecarboxamide</td><td> 2.817</td>

<td> 387</td><td></td><td> '2-[(5-Bromo-2- pyridinyl)amino] -N-(2-chloro-6- methylphenyl)-5- thiazolecarboxamide</td><td> 4.023</td>

<td> 388</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-[[3-(phenylmethoxy)-2pyridinyl] amino] -5thiazolecarboxamide</td><td> 4.143</td>

<td> 389</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[(5-chloro-2-pyridinyl)amino]- 5-thiazolecarboxamide</td><td> 3.957</td>

<td> 390</td><td> °h,c</td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[(6-ethyl-2-pyridinyl)amino]- 5-thiazolecarboxamide</td><td> 3.867</td>

<td> 391</td><td></td><td>^,N-(2-Chloro-6-methylphenyl)- 2-[(6-propyl-2-pyridinyl)amino]- 5-thiazolecarboxamide</td><td> 4.083</td>

<td> 392</td><td> H£</td><td> '2-[(3-Bromo-5-methyl-2pyridinyl)amino] -N-(2-chloro-6methylphenyl)-5:hiazolecarboxamide</td><td> 4.077</td>

<td> 393</td><td></td><td> '2-[(2-A1nino-3- pyridinyl)amino]-N-(2-chloro-6- methylphenyl)-5- liazolecarboxamide</td><td> 2.343</td>

<td> 394</td><td></td><td> 2-[(3-Amino-2- pyridinyl)amino]-N-(2-chloro-6- methylphenyl)-5- liazolecarboxamide</td><td> 2.777</td>

<td> 395</td><td></td><td> M-(2-Chloro-6-methylphenyl)- צ 2-(4-pyridinylamino)-5- hiazolecarboxamide</td><td> 2.493</td>

<td> 396</td><td> ¾4 ‘ ¾,0 t</td><td> tf-(2-Chloro-6-methylphenyl)- 2 5-(3-pyridinylamino)-5- hiazolecarboxamide</td><td> 147</td>

<td> 397</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[(6-chloro-3-pyridinyl)amino]- 5-thiazolecarboxamide</td><td> 3.75</td>

<td> 398</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-[(2-chloro-3-pyridinyl)amino] 5-thiazolecarboxamide</td><td> 3.443</td>

<td> 399</td><td> Ή</td><td>^,N-(2-Chloro-6-methylphenyl)- 2-[(6-methoxy-3- pyridinyl)amino]-5- thiazolecarboxamide</td><td> 3.517</td>

<td> 400</td><td>^s 1 ΑΧ</td><td> 'N-(2-Chloro-6-methylphenyl)2-[(3,5-dimethyl-2pyrazinyDamino] -5thiazolecarboxamide</td><td> 3.583</td>

<td> 401</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-(phenylamino)-5- thiazolecarboxamide</td><td> 3.697</td>

<td> 402</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[(3-ethylphenyl)amino] -5thiazolecarboxamide</td><td> 4.107</td>

<td> 403</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2- [(3,5-dimethylphenyl)amino] 5-thiazolecarboxamide</td><td> 3.98</td>

<td> 404</td><td> Ν-^* jl ? Λ=\ ⁸JVi Ή &gt; 8 AJ «1</td><td> 'N-(2-Chloro-6-methylphenyl)2-[(4,6-dimethyl-2pyrimidinyDamino] -5thiazolecarboxamide</td><td> 3.51</td>

<td> 405</td><td> χΓΜ</td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[(6-ethyl-4pyrimidinyl)amino] -5;hiazolecarboxamide</td><td> 2.943</td>

<td> 406</td><td> GI</td><td> ‘N-(2-Chloro-6-methylphenyl)2- [(6-chloro-2-pyrazinyl)amino] 5-thiazolecarboxamide.</td><td> 3.763</td>

<td> 407</td><td></td><td> '2- [(3-Aminophenyl)amino] -N- (2-chloro-6-methylphenyl)-5- ;hiazolecarboxamide</td><td> 2.633</td>

<td> 408</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2- [(3-hydroxyphenyl)amino] -5;hiazolecarboxamide</td><td> 3.337</td>

<td> 409</td><td></td><td> '2-[(3-Bromophenyl)amino]-N- (2-chloro-6-methylphenyl)-5thiazolecarboxamide</td><td> 4.12</td>

Example

Preparation of ^,N-(2.6-Dimethvlphenvl)-2-(phenvlammo)-5thiazolecarboxamide

<img file="IL170873A_D0186.tif" />

3. [5-[[(2,6-dimethylphenyl)amino]carbonyl]-2-thiazolyl]carbamic acid,

1,1-dimetliylethyl ester

Compound 410A was prepared by an analogous method as that of 315C, except using 2,6-dimethylaniline.

B., 2-Amino-N2.6)־-dimethylphenvl)- 5-thiazolecarboxamidA

Compound 410B was prepared by an analogous method as that of 315D, 15 except using compound 410A.

C. Title Compound

The title compound was prepared by an analogous method as that of 319B, except using compound 410B and aniline. HPLC Ret. Time

3.69min.

Examples 411 to 427

Compounds 411 to 427 were prepared by an analogous method as that of

319B.

General Procedure

<td> EX. NO.</td><td> Compound Structure Compound NamP</td><td> HPLC | Ret Time (min)</td>

<td> 411</td><td> j”. 'N-(2,6-Dimethylphenyl)-2- /=\ ^S g Vj (methylphenyIamino)-5- V/ h/V [thiazolecarboxainide</td><td> 3.667</td>

<td> 412</td><td> θ μ- 'N-(2,6-Dimethylphenyl)-2-(2- ^N pyridinylamino)-5- *HP'S [thiazolecarboxainide</td><td> 3.297</td>

<td> 413</td><td> r-O r^N2,6)־-Dimethylphenyl)-2-[(6- |^methyl-2-pyridinyl)an1ino]-5- ]thiazolecarboxainide</td><td> 3.587</td>

<td> 414</td><td> JI h,= rN-(2,6-Dimethylphenyl)-2-[(4- לד ^metl1yl-2-pyridinyl)an1ino]-5- thiazolecarboxainide</td><td> 3.222</td>

<td> 415</td><td> ל 'N-(2,6-Di1nethylphenyl)-2-[(4- ethyl-2-pyridinyl)amino]-5-' ^s ]thiazolecarboxainide</td><td> 3.54</td>

<td> 416</td><td> «J? _K 'N-(2,6-Dimethylphenyl)-2- i(4,6-dimethyl-2- pyridinyl)amino]-5- !thiazolecarboxainide</td><td> 3.543</td>

<td> 417</td><td> /⁵״ ל ^Hj(? r2-[(6-Amino-2- pyridinyl)amino]-N-(2,6dimethylphenyl)-5!thiazolecarboxainide</td><td> 2.807</td>

<td> 418</td><td> m ¹¹¹L |'^N־⁶&lt;²)־^D^ethylphenyl)-2-[(6- ^m־^n--&lt;_sKz γπ ethyl-2-pyridinyl)amino] -5- ]thiazolecarboxainide</td><td> 3.847</td>

<td> 419</td><td> propyl-2-pyridinyl)amino]-5- %c [thiazolecarboxainide</td><td> Ϊ.057</td>

<td> 420</td><td> ׳Ο H *V '2-[(2-Amino-3- 2 /־R_sY^NVj pyridinyl)amino]-N-(2,6- dimethylphenyl)-5thiazolecarboxainide</td><td> 5.337</td>

<td> 421</td><td> '2-[(3-Amino-2- 2 !ל pyridinyl)amino]-N-(2,6- dimethylphenyl)-5- thiazolecarboxainide</td><td> .737</td>

<td> 422</td><td></td><td> '2-[(6-Amino-2-methyl-4pyrimidinyl)amino]-N-(2,6dim ethylphenyl)-5 thiazolecarboxamide</td><td> 2.71</td>

<td> 423</td><td></td><td> 'N-(2,6-Dimethylphenyl)6] ] -2־(4-morpholinyl)-3 pyridazinyl] amino]-5thiazolecarboxamide</td><td> 2.727</td>

<td> 424</td><td></td><td> '2-[(6-Chloro-3- pyridazinyDamino] -N-(2,6dimethylphenyl)-5;hiazolecarboxamide</td><td> 3.46</td>

<td> 425</td><td></td><td> 'N-(2,6-Dimethylphenyl)-23)־- pyridazinylamino)-5- thiazolecarboxamide</td><td> 2.973</td>

<td> 426</td><td> J: z z ץ 09 £ f</td><td> ‘2- [(3-Aminophenyl)amino]-N- ’2,6-dimethylphenyl)-5thiazolecarboxamide</td><td> 2.63</td>

<td> 427</td><td></td><td> 2- [(3-Bromophenyl)amino] -N(2,6-dimethylphenyl)-5:hiazolecarboxamide</td><td> 4.143</td>

Example

Preparation of 2-(2״Pyr1dinvlamino)-N-(2.4.6-t:rimethylphenyl)-5thiazolecarboxamide

<img file="IL170873A_D0187.tif" />

3. [5-[[(2,4,6-trimethylphenyl)amino]carbonyl]-2-thiazolyl]carbamic acid, 10 1,1-dimetllylethyl ester

Compound 428A was prepared by an analogous method as that of 315C, except using 2,4,6-trimethylaniline.

R.2-Amino-N-(2.6-dimethylphenvl)- 5-thiazolecarboxarm־de

Compound 428B was prepared by an analogous method as that of 315D, except using compound 428A.

C. Title Compound

The title compound was prepared by an analogous method as that of 319B, except using compound 428B and 2-aminopyridine. HPLC Ret. Time 3.66min.

/

Examples 429 to 443

General Procedure

Compounds 429 to 443 were prepared by an analogous method as that of 319B.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 429</td><td> 1 ך 1׳^ a ΑΑοΐ</td><td> '2- [(6-Methyl-2-pyridinyl)amino] N-(2,4,6-trimethylphenyl)-5thiazolecarboxamide</td><td> 3.903</td>

<td> 430</td><td> Vy - L AA«,</td><td> '2- [(5-Methyl-2-pyridinyl)amino] N-(2,4,6-trimethylphenyl)-5thiazolecarboxamide</td><td> 3.8</td>

<td> 431</td><td> AA*</td><td>^l2-[(4-Methyl-2־pyridinyl)amino]- N-(2,4,6-trimethylphenyl)-5- ;hiazolecarboxamide</td><td> 3.603</td>

§7T WO 2004/085388

<td> 432</td><td></td><td> ’2-[(3-Methyl-2-pyridinyl)ammo]- N-(2,4,6-trimethylphenyl)5־- thiazolecarboxamide</td><td> 3.56</td>

<td> 433</td><td></td><td> 2-[(5-Bromo-2-pyridinyl)amino]- N2,4,6)-־-trimethylphenyl)-5- thiazolecarboxamide</td><td> 4.263</td>

<td> 434</td><td></td><td> 2- [(5-Chloro-2-pyridinyl)aminol N-(2,4,6-trimethylphenyl)-5thiazolecarboxamide</td><td> 4.203</td>

<td> 435</td><td></td><td> '2-[(6-Methoxy-3pyridinyl)amino] -N-(2,4,6;rimethylphenyl)-5thiazolecarboxamide</td><td> 3.8</td>

<td> 436</td><td></td><td> '2- [(4-Ethyl-2-pyridinyl)amino] N-(2,4,6-trimethylphenyl)5־;hiazolecarboxamide</td><td> 3.86</td>

<td> 437</td><td> \c</td><td> '2- [(6-Ethyl-2-pyridinyl)amino] N-(2,4,6-trimethylphenyl)5־thiazolecarboxamide</td><td> 4.127</td>

<td> 438</td><td></td><td> '2- [(6-Chloro-3-pyridinyl)amino] N-(2,4,6-trimethylphenyl)5־thiazolecarboxamide</td><td> 4.017</td>

<td> 439</td><td></td><td> '2-[(2,6-Dimethyl-4- pyrimidinyl)amino]-N-(2,4,6- trimethylphenyl)-5- thiazolecarboxamide</td><td> 2.943</td>

<td> 440</td><td></td><td> *2-[(4-Methyl-2pyrimidinyl)amino] -N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 3.723</td>

<td> 441</td><td></td><td> '2-(2-Pyrazinylamino)-N-(2,4,6- trimethylphenyl)-5- thiazolecarboxamide</td><td> 3.65</td>

<td> 442</td><td></td><td> '2- [(6-Chloro-2-pyrazinyl)amino]- N-(2,4,6-trimethylphenyl)5־- thiazolecarboxamide</td><td> 4.05</td>

<td> 443</td><td></td><td>^,2-((3,5-Dimethyl-2pyrazinyl)amino] -N-(2,4,6trimethylphenyl)-5thiazolecarboxamide</td><td> 3.877</td>

Example

Preparation

B1orpholinyl)etl1yllaminol-4-pvrimidinvllaminol-5-thiazolecarbmr_flTn1dA

<img file="IL170873A_D0188.tif" />

<img file="IL170873A_D0189.tif" />

To a suspension of NaH (148mg, 6.17mmol) in THE (20mL) was added a solution of compound 315D (551mg, 2.06mmol) in THF (lOmL) and stirred at RT for 0.5h. A solution of 4,6-dichloro-2-methylpyrimidine (671.6mg, 4.12mmol) in THF (lOmL) and stirred at RT overnight. The reaction was quenched with acetic acid and the solvent removed in vacuo. Water and saturated NaHCO₃ were added to the residue and extracted with CH Cl. The organic layer was removed in vacuo and the crude material purified by column chromatography to give 444A (494mg).

B. Title Compound

To compound 444A (30mg) was added N־2)־aminoethyl)-morpholine (300pL) and the mixture was heated at 80°C for 2h. Water was added to the reaction and the product was collected by filtration. HPLC Ret. Time 2.357min.

Compounds 445 to 461 were prepared by an analogous method as that of

444B by substituting the appropriate amins

General Procedure

Examples 445 to 461

EX. Compound Structure !Compound Name

<img file="IL170873A_D0190.tif" />

“ NM

CH_a

1448

1449

<img file="IL170873A_D0191.tif" />

HPLC (Ret Time ____________(min) ^,N-(2-Chloro-6-methylphenyl)-2- 2.253 l[[2-methyl-6-[[3-(4morpholiny !)propyl] amino]-4pyrimidinyl] amino]-5thiazolecarboxamide ________I ^lN-(2-Chloro-6-methylphenyl)-2- [[2-2.493 lmethyl-6-[methyl [3-(methyl-| amino)propyl] amino]-4-pyrimidinyl] amino]-5-thiazolecarboxamide______ l^,N-(2-Chloro-6-methylphenyl)-2- 2.71 [[2-metl1yl-6-[[2-(tetrahydro-2-oxo-I lH-imidazol-l-yl)ethyl]-amino]-4pyn-midinyl]amino]-5־thiazole- II carboxamide__ 'N-(2-Chloro-6-methylphenyl)-2- 2.303 [[2-methyl-6-[(2-lH-imidazol-4- I I ylethyl)amino]-4pyrimidinyl] amino]-5thiazolecarboxamide__, 'N-(2-Chloro-6-methylphenyl)-2- 3.337 [[2-methyl-6-(4-morpholinyl)-4- I I pyrimidinyl] amino]-5thiazolecarboxamide__________| 'N-(2-Chloro-6-methylphenyl)-2- 2.703 [[6-[[[(2R)-l-ethyl-2pyrrolidinyl]methyl]amino]-2- I methyl-4-pyrimidinyl] amino]-5thiazolecarboxamide

<td> 451</td><td> mM’ Η,ρ</td><td> 'N-(2-Chloro-6-methylphenyl)-2 [[6-[[[(2S)-l-ethyl-2pyrrol! dinyl]methyl] amino]-2methyl-4-pyrimidinyl] amino] -5thiazolecarboxamide</td><td>.717 1</td>

<td> 452</td><td> 00־ aJO</td><td> '2-[[6-[(2S)-2-(Aminocarbonyl)-l pyrrolidinyl]-2-methyl-4pyrimidinyl] amino] -N-(2-chloro6-methylphenyl)-5thiazolecarboxamide</td><td>.81</td>

<td> 453</td><td> χΑό</td><td> 'N-(2-Chloro-6-methylphenyl)-2[[6-[(2-hydroxyethyl)amino]-2methyl-4-pyrimidinyl] amino]-5;hiazolecarboxamide</td><td> 2.677</td>

<td> 454</td><td> mM CH&gt;</td><td>^lN-(2-Chloro-6-methylphenyl)-2[(6-[4-(hydroxymethyl)-lpiperidinyl] -2-methyl-4pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 3.05</td>

<td> 455</td><td> CH,</td><td> 'N-(2-Chloro-6-methylphenyl)-2[[6-[4-(2-hydroxyethyl)-lpiperazinyl] -2-methyl-4pyrimidinyl] amino]-5thiazolecarboxamide</td><td> 2.717</td>

<td> 456</td><td> yM</td><td> ׳l-[6-[[5-[[(2-Chloro-6- methylphenyl)amino] carbonyl]2-thiazolyl] amino] -2-methyl-4pyrimidinyl]-4piperidinecarboxamide</td><td> 2.863</td>

<td> 457</td><td> 2*^1 ra C«״&gt; *a j־€L. I 00־ 1 t</td><td> N-(2-Chloro-6-methylphenyl)-2.[2-methyl-6-[(3S)-3-methyl-loiperazinyl]-4oyrimidinyl] aminol-5;hiazolecarboxamide</td><td> 2.823</td>

<td> 458</td><td> CH. Ϊ 6 t</td><td> 2-[[6-[3-(Acetylamino)-l- $ )yrrolidinyl] -2-methyl-4- )yrimidinyl] amino]-N-(2-chloro- ►-methylphenyl)5־- hiazolecarboxamide</td><td> 5.78</td>

<td> 459 *</td><td> ?^006 f¹ X p Π tl</td><td> T-(2-Chloro-6-methylphenyl)-2- 2 6-[[2-(l-methyl-2yrrolidinyDethyl] amino]-21ethyl-4-pyrimidinyl] amino] -5liazolecarboxamide</td><td> .383</td>

א8צ5א2004/0 WO

<td> 460</td><td></td><td> 'N-(2-C111oro-6-methylphenyl)-2[[2-methyl-6-[[(5-methyl-2pyrazinyDmethyl] amino] -4pyrimidinyl] amino] -5thi azolecarboxamide_________</td><td> 3.027</td>

<td> 461</td><td> CH,</td><td> 'N-(2-Chloro-6-methylphenyl)-2[[2-methyl-6-[[2-(lH-l,2,3triazol- l-yl)ethyl] amino] -4pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 2.78</td>

Example

Preparation of ^lN2)־-Chloro-6־methvlphenvl)-2-i[6-[[24)־_zm or pholinvl^-)ethyl] amino! -4-pyrimidinyll amino! -5-thi azolecarboxamide

<img file="IL170873A_D0192.tif" />

Compound 462A was prepared by an analogous method as that of 444A, except using 4,6-dichloropyrimidine.

B. Title Compound

The title compound was prepared by an analogous method as that of

444B, except using compound 462Ain place of compound 444A. HPLC

Ret. Time 2.553min.

Examples 463 to 472

General Procedure

Compounds 463 to 472 were prepared by an analogous method as that of 10 444B by substituting the appropriate amine. “HPLC Ret Time ‘B’” is the

HPLC retention time under the following conditions: YMC S5 ODS 4.6 x 33 mm Turbo Column, 2 min gradient starting from 100% solvent A (10% MeOH, 90% H₂O, 0.1% TFA) to 100% solvent B (90% MeOH, 10% H₂O, 0.1% TFA) with lmin at 100% solvent B, flow rate 4 mL/mw, % = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 463</td><td> *sA ®A HjC-/ y</td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[[2-(dimethyl-amino)ethyl] amino] -4-pyrimidinyl] amino]-5-thiazolecarboxamide</td><td> 2.527</td>

<td> 464</td><td> o'</td><td> 'N-(2-Chloro-6-methylphenyD2-[[6-[[2-(tetrahydro-2-oxo-lHimidazol-l-yl)ethyl] amino]-4pyrimidinyl] amino]-5thiazolecarboxamide</td><td> 2.797</td>

<td> 465</td><td> o</td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[methyl[2-(methylamino)ethyl] amino] -4-pyrimidinyl] amino] -5-thiazolecarboxarm de</td><td> 1.137 B</td>

<td> 466</td><td> V J-N a 0 y H.O-0</td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[[2-(l-methyl-2pyrrolidinyl)ethyl] amino] -4pyrimidinyl] amino] -5:hiazolecarboxamide</td><td> 1.113 B</td>

<td> 467</td><td> Qi</td><td> 'N-(2-Chloro-6-methylphenyD2-[[6-[[2-(l-pyrroli dinyl)ethyl] amino] -4-pyrimidinyl] amino]-5-thiazolecarboxamide</td><td> 1.150 B</td>

<td> 468</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2- [ [6- [ [(l-ethyl-2-pyrrolidinyl)methyl] amino] -4-pyrimidinyl] amino]-5-thiazolecarboxamide</td><td> 1.237 B</td>

<td> 469</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[(4-piperidinylmethyl)aminol -4-pyrimidinyl] amino] -5-thiazolecarboxamide</td><td> 1.160 B</td>

<td> 470</td><td>¹*⁸־O</td><td> '2- [[6- [[2-(Acetylamino)ethyl] amino] -4-pyrimidinyl] amino] -N-(2-chloro-6methylphenyl)-5-thiazolecarboxamide</td><td> 2.457 B</td>

<td> 471</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-( [6-[[2-( 1H-1,2,3 -triazol-1yl)ethyl] amino] -4pyrimidinyll amino]-5thiazolecarboxamide</td><td> 2.897</td>

<td> 472</td><td> &lt;κΑύ ______</td><td> N-(2-Chloro-6-methylphenyl)- 2-[[6-(4-morpholinyl)-4yrimi dinyl] amino] -5thiazolecarboxamide _____</td><td> 3.437</td>

Example

Preparation of ^,N-(2-Chloro-6-methvlphenvl)-2-fr6-[[2-(4Slprpholinyl)ethyl]aminol-2-pyridinvllaminol-5-thiazolecarboxam1dp.

<img file="IL170873A_D0193.tif" />

fc-r

<img file="IL170873A_D0194.tif" />

<img file="IL170873A_D0195.tif" />

To a suspension of NaH (2.83g,118mmol) in DMF (350mL) cooled to 0°C was added compound 319A (31g, 93.5mmol). The mixture was stirred for

45min at 0°C then Bu₄NI (6.9g, 18.7mmol) was added followed by addition of 4-methoxy benzylchloride (18g, 115mmol). The reaction was allowed to warm to RT. After stiiring overnight at RT the reaction was quenched slowly with acetic acid then the solvent removed in vacuo. To the residue was added water and neutralized with saturated aqueous NaHCO₃. The mixture was extracted 3 times with EtOAc and the combined organic layers washed with water then washed with saturated NaCl solution. The EtOAc layer was concentrated in vacuo and the residue purified by column chromatography to give 473A (35g).

B

<img file="IL170873A_D0196.tif" />

To compound 473A (0.5g, l.lmmol) dissolved in THF (50mL) was slowly added NaH (0.13g, 5.5mmol) followed by 2-bromo-6-aminopyridine (0.76g, 20 4.4mmol). The reaction was heated to reflux for 2h then cooled to RT and quenched with acetic acid. The solvent was removed in vacuo then water and hexane was added and stirred at RT. The solid precipitate was collected by filtration and washed with water and Et₂O to give 473B (0.48g)

C

<img file="IL170873A_D0197.tif" />

To compound 473B (0.48g) dissolved in TEA (5mL) was added a ת i snip (2mL) followed by triflic acid (ImL). The reaction was stirred at RT for 3h then was slowly added to a rapidly stirred mixture of ice, saturated NaHCO₃, Et₂O and CH₂C1₂. The mixture was stirred cold for lh then the solid precipitate was collected by filtration and washed with water followed by Et₂O/CH₂Cl₂mixture to give 473C (0.344g). HPLC Ret. Time 3.85min.

D. Title Compound

The title compound was prepared by an analogous method as that of

444B, except using compound 473C in place of compound 444A. HPLC

Ret. Time 2.80min.

Examples 474 to 480

General Procedure

־—......-¹—1^-¼

Compounds 474 to 480 were prepared by an analogous method as that of 4730 by substituting the appropriate amine.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC | Ret Time 1 (min) 1</td>

<td> 474</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[[3-(4-morpholinyl)propyl] amino] -2-pyridinyl] amino] -5-thiazolecarboxamide</td><td> 2.867 I</td>

<td> 475</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2- [[6- [methyl [3-(methylamino)propyl] amino] -2pyndinyl] amino] -5-thiazolecarboxamide</td><td> 3.067</td>

<td> 476</td><td> W</td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-[(3S)-3-methyl-lpiperazinyl]-2-pyridinyl]amino]-5-thiazolecarboxamide</td><td> 2.827</td>

<td> 477</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)23)] -6] ] ־ -lH-imidazol-1ylpropyl)amino] -2-pyridinyl] ammo]-5-thiazolecarboxamide</td><td> 2.83</td>

<td> 478</td><td></td><td>^lN-(2-Chloro-6-methylphenyl)- 2-[[6-[(2-hydroxyethyl)amino]2-pyridinyl] amino]-5bhiazolecarboxamide</td><td> 3.077</td>

<td> 479</td><td> ________________________________;______________________£</td><td> N-(2-Chloro-6-methylphenyl)- 2-[[6-[(2-lH-imidazol-ldethyDamino] -2-pyridinyl] umno]-5-thiazolecarboxamide</td><td> 2.903</td>

<td> 480</td><td> t</td><td> ST2)־-Chloro-6-methylphenyl)- Σ i-[[6-(4-morpholinyl)-2*yridinyl] amino]-5hiazolecarboxamide</td><td> !.727</td>

Example

Preparation of 'N-(2-Chloro-6-methvlphenvl)-2-[[6-[[2-(4SSO1pholinyl)ethyllaminol-2-pyrazinvllaminol-5-thiazolecarboxamide

Ανυ.♦/

<img file="IL170873A_D0198.tif" />

A.

<img file="IL170873A_D0199.tif" />

Compound 481A was prepared by an analogous method as that of 473B, except using compound 2-chloro-6-aminopyrazine in place of compound 2bromo-6-aminopyridine.

Ώ. (alternate synthesis for compound 406)

<img file="IL170873A_D0200.tif" />

Compound 406 was prepared by an analogous method as that of 473C, except using compound 481A in place of compound 473B.

C. Title Compound

The title compound was prepared by an analogous method as that of

444B, except using compound 406 in place of compound 444A. HPLC Ret.

Time 2.69min.

Examples 482 to 486

General Procedure

Compounds 482 to 486 were prepared by an analogous method as that of 481C by substituting the appropriate amina.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 482</td><td> °AAc0</td><td> 'N-(2-Chloro-6-methylphenyl)2- [[6- [ [3-(4־morpholinyl)propyl] amino] -2-pyrazinyl] amino] -5-thiazolecarboxamide</td><td> 2.783</td>

<td> 483</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-[[6-(4-morpholinyl)-2pyrazinyl] amino] -5-thiazolecarboxamide</td><td> 3.57</td>

<td> 484</td><td> Ν'.». ci Chiral bW</td><td> ‘N-(2-Chloro-6-methylphenyl)- 2-[[6-[(3S)-3-methyl-lpiperazinyl] -2-pyrazinyl] amino]-5-thiazolecarboxamide</td><td> 2.743</td>

<td> 485</td><td> HO.</td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[[6-(3-hydroxy-lpyrrolidinyl)-2-pyrazinyl] amino]-5-thiazolecarboxamide</td><td> 3.327</td>

'*ii

<td> 486</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2-((6-(lH-imidazol-l-yl)-2pyrazinyl] amino] -5thiazolecarboxamide</td><td> 2.68</td>

Example

Preparation of ^lN-(2-Chloro-6-methvlphenvl)-2-i(6-(3-hvdroxy-lpyrrolidinyD-S-pyridazinyl] amino]-5-thiazolecarboxarm'dR

<img file="IL170873A_D0201.tif" />

Compound 487A was prepared by an analogous method as that of473B, except using compound 3-chloro5־-aminopyridazine in place of compound

2-bromo-6-aminopyridine.

B

Compound 487B was prepared by an analogous method as that of473C,

<img file="IL170873A_D0202.tif" />

except using compound 487A in place of compound 473B.

C. Title Compound

The title compound was prepared by an analogous method as that of

444B, except using compound 487B in place of compound 444A, and 3hydroxypyrrolidine in place of N-(2-aminoethyl)-morpholine. HPLC Ret. Time 2.493min.

Example

Preparation of N-(2-Chloro-6-methylphenvl)-2-ir6־(lH-imidazol-l-yl)-3pyridazinyllaminol-5-thiazolecarboxamide

<img file="IL170873A_D0203.tif" />

Compound 488 was prepared by an analogous method as that of 487C, except using imidazole in place of 3-hydroxypyrrolidine. HPLC Ret. Ti-me 2.61min.

Example

Preparation pyrazinyl! amino! -5־thiazolecarboxamide

<img file="IL170873A_D0204.tif" />

Compound 489A was prepared by an analogous method as that of 473B, except using compound 2-chloro-3-aminopyrazine in place of compound 2bromo-6-aminopyridine.

<img file="IL170873A_D0205.tif" />

Compound 489B was prepared by an analogous method as that of 473C, except using compound 489A in place of compound 473B.

C. Title Compound

The title compound was prepared by an analogous method as that of

444B, except using compound 489B in place of compound 444A, and using methylamine in place of N-(2-aminoethyl)-morpholine. HPLC Ret. Time

2.81min.

Examples 490 to 494

General Procedure

Compounds 490 to 494 were prepared by an analogous method as that of 15 489C by substituting the appropriate amine.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 490</td><td> Q VO</td><td> N-(2-Chloro-6-methylphenyl)2-[[3-(3-hydroxy-lpyrrolidinyl)-2pyrazinyl] amino] -5thiazolecarboxamide</td><td> 2.82</td>

Example ²⁰ Preparation of ^,N-(2־Chloro-6-methylphenvl)-2-(cvclohexv]arm^,no)-5 thiazolecarboxamide

Compound 495 was prepared by an analogous method as that of444B, except using compound 319A in place of compound 444A, and using cyclohexylamine in place of N-(2-aminoethyl)-morpholine. HPLC Ret. Time 3.547min.

Examples 496 to 500

General Procedure

Compounds 496 to 500 were prepared by an analogous method as that of 495 by substituting the appropriate amins,

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 496</td><td></td><td> 'N -(2-Chloro-6-m ethylphenyl)2-(methylamino)-5thiazolecarboxamide</td><td> 2.357</td>

Example .

Preparation, of ^,N-(2-Chloro-6-methvlphenyl)-2- rf6-(methoxvmethvl)-4 pynmidinyll aminol-5-thiazolecarboxamide

<img file="IL170873A_D0206.tif" />

A h₃co^Y^^oh^N^N

To the mixture of methyl 4-methoxyacetoacetate (14.6 g, 0.1 moL) and formami-dine hydrogen chloride salt (16.1 g, 0.2 moL) in 70 mL of dry MeOH was added a 25% solution of sodium methoxide (70 ml0.3 ,,־ moL) in 15 MeOH portionwise. A white precipitate was formed im media My. The reaction mixture was stirred at room temperature for 1.0 hr. Acetic acid (28.6 mL, 0.5 moL) was added and the reaction mixture was concentrated in vacuo. Water was added to the residue and the mixture was supersaturated with NaCl and extracted with EtOAc (x5). Combined 20 extracts were dried over anhydrous Na₂SO₄ and concentrated in vacuo to give 8.13 g of compound 501A as a yellow solid.

B

Νχ^Ν

The mixture of compound 501A (5.3 g, 37.8 mmoL) and POC1₃ (40 mL) was heated to reflux for 2.0 hrs. Concentration in vacuo and the residue was poured into a mixture of ice-CH^. The pH was adjusted to 6.5 to 7 using concentrated NH₄OH. The mixture was extracted with CHjCl, (x3) and combined extracts were dried over Na₂SO₄. Concentration in vacuo followed by flash chromatography (CH₂Cl₂-EtOAc: 9:1) on silica gel gave 5.33 g of compound 501B as a pale yellow oil.

C

Η₃οο^χχγ^χ^^ΝΗ2 ׳The mixture of compound 501B (3.2 g, 20 mmoL) and NH₄OH (50 mL) was heated to 85.C in a pressure tube for 3.0 hrs. After cooled to room temperature, the reaction mixture was concentrated in vacuo and the residue was triturated with ether to give 2.81 g of compound 501C as a pale yellow solid.

D

<img file="IL170873A_D0207.tif" />

Compound 501D was prepared from compound 501C by a method analogous to that used for the preparation of compound 473B.

The title compound was prepared from compound 501D by a method analogous to that used for the preparation of compound 473C. HPT !C

Retention time = 3.25 min.

E Title Compound

Example

Preparation of 'N-(2-Chloro-6-methylphenvl)-2-[[6-(hvdroxvmethvl)-4pyrimidinvll aminol-5-thiazolecarboxamide

<img file="IL170873A_D0208.tif" />

To a solution of compound 501 (56 mg, 0.144 nunoL) in dry CELjCL; (3.0 mL) cooled at 0.C was added neat BBr₃ (0.054 mL, 0.574 mmoL). The mixture was stirred for 1.0 hr at ambient temperature. MeOH was added slowly with care at 0.C and the resulting mixture was concentrated in

J vacuo. Water was added to the residue and pH was adjusted to 7 with Sat’d NaHCO₃. The white precipitate was collected by filtration, rinsed with water/ether and dried under high vacuum to give 52 mg of Compound 502 as an off-white solid. HPLC Retention time = 2.84 min.

Example

Preparation of'N-i2-Chloro-6-methvIphenvD-2-ii6-(4-momhd₁־nv]mpt.'hvD-

4-pyrimidinyll amino] -5-thiazolecarboxamid r

<img file="IL170873A_D0209.tif" />

<img file="IL170873A_D0210.tif" />

To a suspension of compound 502 (44.2 mg, 0.118 mmoL) in 0.5 mL of dry CE^CL, was added thionyl chloride (0.086 mL, 1.18 mmoL). The reaction mixture was stirred for 5.0 hrs. Concentration in vacuo and the residue was azeotropic evaporated with CH₂C1₂ to give 56 mg of 503 as an yellow solid.

B Title Compound

The mixture of compound 503A (20 mg), morpholine (0.014 mT,) and diisopropylethyl amine (0.09 mL) in 0.5 mL of dry dioxane was heated to 85.C for 4.0 hrs. Concentration in vacuo followed by flash chromatography (CH2Cl₂-MeOH-NH₄OH: 95:5:0.5) on silica gel gave 15 mg of title compound as an off-white solid.

HPLC Retention time = 2.52 min.

Examples 504 to 513

Compounds 504 to 513 were prepared from 503A by a route analogous to that used for the preparation of 503. The compounds of these examples have the structure:

General Procedure

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret Time (min)</td>

<td> 504</td><td> . cr *W</td><td> 'N-(2-Chloro-6־methylphenyD2-[[6-[[[2(dimethylamino)ethyl] amino]m ethyl] -4-pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 2.083</td>

<td> 505</td><td> 4—♦&lt; a 0 /</td><td> 'N-(2-Chloro-6-methylphenyl)־ 2-[[6-[[[2-(4- morpholinyl)ethyl] amino]meth yl] -4־pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 2.593</td>

<td> 506</td><td> n)</td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[[6-[[[3-(4- morpholinyDpropyl] amino] met hyl] -4-pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 2.163</td>

<td> 507</td><td> ΰτ\_Λ hW)</td><td>^lN-(2־Chloro-6-methylphenyl)2-[[6-[[[3-(2-oxo-lpyrrolidinyDpropyl] amino] meth yl] -4-pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 2.693</td>

<td> 508</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)2- [[6- [ [(2- lH-imidazol-4ylethyl)amino]methyl]-43yrimidinyl] amino]-5;hiazolecarboxamide</td><td> 2.143</td>

<td> 509</td><td> cy</td><td> 'N-(2-Chloro-6-methylphenyD2-[[6-[[(3-lH-imidazol-lylpropyl)amino]methyl] -4jyrimidinyl] a mi 5-[סח־thiazolecarboxamide</td><td> 1.103 B</td>

<td> 510</td><td></td><td> 'N-(2-Chloro-6-methylphenyl)- 2-[[6-[[[2-(2- pyridinyDethyl] amino] methyl] 4-pyrimidinyl] amino] -5thiazolecarboxamide</td><td> 1.113 B</td>

<td> 511</td><td> Λ l\^ L#</td><td> N-(2-Chloro-6-methylphenyl)2-[[6-[[[2-(3- pyridinyDethyl] amino]methyl]- 4-pyrimidinyl] amino] -5-</td><td> 1.117 B</td>

<td></td><td></td><td> thiazolecarboxamide</td><td></td>

<td> 512</td><td>⁰ Xt a 0 t</td><td> 'l-[[6-[[5-[[(2-Chloro-6methylphenyl)amino] carbonyl]2-thiazolyl] amino] -4pyrimidinyl]methyl]-4piperidinecarboxamide</td><td> 1.207 B</td>

<td> 513</td><td> 0 Εγ VΓ</td><td>]]]-6]]-2׳ ¹ Acetylamino)ethyl] amino]meth yl]-4-pyrimidinyl]amino]-N-(2chloro-6-methylphenyl)-5;hiazolecarboxamide</td><td> 1.193 B</td>

Example

Separation of N^-Chloro-S-nnethvlnhenvn^-naDhthalAnvlAminnl-K, thiazolecarboxamide

<img file="IL170873A_D0211.tif" />

A

<img file="IL170873A_D0212.tif" />

Compound 514Awas prepared from 473Aby an analogous method as that of473B, except using 2-aminonapthaline in place of 2-bromo-6aminopyridine.

B. Title Compound

The title compound was prepared by an analogous method as that of 473C, except using compound 514A in place of compound 473B. HPLC Ret. Time 4.11min.

Example

Preparation of ^,N-(2-Chloro-6-methvlphenvl)-2-(2-auinolinvlamino)-5thiazolecarboxamide h₃c־

N N—

י® ׳

N

Cl hL X

N

Cl

Compound 515A was prepared from 473A by an analogous method as that of473B, except using 2-aminoquinoline in place of 2-bromo-6aminopyridine.

B. Title Compound

The title compound was prepared by an analogous method as that of 473C, except using compound 515A in place of compound 473B. HPLC Ret. Time 3.94min.

Example

Preparation thiazolecarboxamide

<img file="IL170873A_D0213.tif" />

Compound 516A was prepared from 473A by an analogous method as that of473B, except using 3-aminoisoquinoline in place of 2-bromo-6aminopyridine.

B. Title Compound

The title compound was prepared by an analogous method as that of 473C, except using compound 516A in place of compound 473B. HPLC Ret. Time 3.94min.

Example

Preparation thiazolecarboxamide

<img file="IL170873A_D0214.tif" />

Compound 517A was prepared from 473A by an analogous method as that of473B, except using 2-aminoquinoxaline in place of 2-bromo-6aminopyridine.

B. Title Compound

The title compound was prepared by an analogous method as that of 473C, except using compound 517A in place of compound 473B. HPLC Ret. Time 3.927min.

Example

Reparation of ^,N-(2-Chloro-6-methvlphenvI)-4־methyl-2- ΓΓ2-τη ethvl-6-(4morpholinyl)-4-pvrimidinvnaminol-5-thiazolecarboxam1rIP

<img file="IL170873A_D0215.tif" />

<img file="IL170873A_D0216.tif" />

Compound 518A was prepared from 144 by an analogous method as that 0f319A.

<img file="IL170873A_D0217.tif" />

Compound 518B was prepared by an analogous method as that of 473A, except using 518A in place of 319A.

<img file="IL170873A_D0218.tif" />

Compound 518C was prepared by an analogous method as that of473B, except using 518B in place of473A, and 4-amino-6-chloro-2methylpyrimidine in place of 2-amino-6-bromopyridine.

<img file="IL170873A_D0219.tif" />

Compound 518D was prepared by an analogous method as that of473C, except using 518C in place of473B.

E. Title Compound

The title compound was prepared by an analogous method as that of 444B, except using compound 518D in place of compound 444A, and morpholine in place of N-(2-aminoethyl)-morpholine. HPLC Ret. Time 3.397min.

1θ Example 519

Preparation of ^,N2)־-Chloro-6-methvlphenvl)-4-methvl-2-rr2-methyl-6־ri2(4-morpholinyl)ethyl1aminol־4־pvrimidinvllaminol-5-thtazolecarboxaTm'dR

<img file="IL170873A_D0220.tif" />

Compound 519 was prepared by an analogous method as that of 518E, except using N-(2-aminoethyl)-morpholine in place of morpholine. ΤΤΡΤ,Π Ret. Time 2.493min.

Example 520

Alternative preparation of compound 321

<img file="IL170873A_D0221.tif" />

<img file="IL170873A_D0222.tif" />

Compound 520A was prepared from 2-aminothiazole according to the procedure described in UK Patent Application GB 2323595A.

<img file="IL170873A_D0223.tif" />

To a solution of compound 520A (480 mg, 4.0 mmoL) in dry THF (10 mL) cooled at -78.C was added a 2.5M solution of n-BuLi (1.68 mL, 4.2 mmoL) in hexane dropwise via a syringe while kept the internal temperature below -75.C. Upon completion of addition, a beige suspension was obtained. The reaction mixture was stirred for 15 min at -78.C. A solution of 2-chloro-6-methyl phenyl isocyanate (0.6 mL, 4.4 mmoL) in 5 mL of dry THF was added and the reaction mixture was stirred for an 1 additional 2.0 hrs at -78.C. Saturated aq. NH₄C1 solution (10 mL) was added, the mixture was partitioned between EtOAc-water and extracted with EtOAc (x2). The combined extracts were dried over NajSO₄ and concentration in vacuo to give, after recrystalization from EtOAc-hexane, 0.99 g of title compound as a pale yellow crystalline material.

<img file="IL170873A_D0224.tif" />

Compound 520C was prepared by a method analogous to that used for the preparation of compound 473A, using 520B in place of 319A.

D

<img file="IL170873A_D0225.tif" />

Compound 520D was prepared from compound 520C by a method analogous to that used for the preparation of compound 473B.

3. Title Compound

Compound 321 was prepared by a method analogous to that used for the preparation of compound 473C.

Example

Preparation of ^l2-[(2,6-Dimethyl-4-pvrimidinyl)amin01-N-phenyl-5thiazolecarboxamide

<img file="IL170873A_D0226.tif" />

ch₃

A

<img file="IL170873A_D0227.tif" />

Compound 521A was prepared by an analogous method as that of 520B, except using phenylisocyanate in place of 2-chloro-6methylphenylisocyanate.

<img file="IL170873A_D0228.tif" />

Compound 52 IB was prepared by a method analogous to that used for the preparation of compound 473A, using 521Ain place of319A.

o—

<img file="IL170873A_D0229.tif" />

ch₃

Compound 521C was prepared from compound 521B by a method analogous to that used for the preparation of compound 473B.

D Title Compound ,

The title compound was prepared by a method analogous to that used for the preparation of compound 473C. HPLC Ret. Time 1.3 min method B

Example ²⁰ Preparation of ^,2-r(2.6-Dimethvl-4-pyrimidinvl)methvlarmnol-N-(2 methylphenyl)-5־thiazolecarboxaTrride

<img file="IL170873A_D0230.tif" />

<img file="IL170873A_D0231.tif" />

Compound 522A was prepared by an analogous method as that of 520B, except using 2-methylphenylisocyanate in place of 2-chloro-6methylphenylisocyanate.

B

<img file="IL170873A_D0232.tif" />

Compound 522B was prepared by a method analogous to that used for the preparation of compound 473A, using 522A in place of 319A

<img file="IL170873A_D0233.tif" />

Compound 522C was prepared from compound 522B by a method analogous to that used for the preparation of compound 473B.

<img file="IL170873A_D0234.tif" />

Sodium hydride (60% in oil; 40 mg; 1 mmol) was added to a solution of compound 522C (280 mg; 0.61 mmol) in 2 ml of DMF at room temp. After stirring 30 minutes, iodomethane (0.2 ml; 3 mmol) was added and the reaction was stirred 4 hr. After the reaction mixture was partitioned between ethyl acetate (50 ml) and water (50 ml), the organic layer was washed with water (2 x 50 ml) and brine (50 ml). Drying (MgSO₄) anri concentration afforded an oil that was chromatographed on a 2.5 x 15 cm silica gel column using 50-75% ethyl acetate/hexane. The pure fractions were concentrated and the residue was crystalized from ethyl acetate/hexane to afford 100 mg of 522D as a light yellow solid.

The title compound was prepared by a method analogous to that used for the preparation of compound 473C. HPLC Ret. Time 1.21 min method B

E Title Compound

Example

Preparation of ^,2-F(2,6-Dimethyl-4-pvrinudinyl)aTninol-N-(2methvlphenvl)-5-thiazolecarboxamide

<img file="IL170873A_D0235.tif" />

Compound 523 was prepared by a method analogous to that used for the preparation of compound 473C, except using compound 522C in place of 473B. HPLC Ret. Time 1.24 min method B

Example 524

Preparation of ^,N-(3.5-Dimethoxvphenvl)-2-F(2.6-dimathvl-4pyrimidinvDaminol-S-thiazolecarboxarnide

<img file="IL170873A_D0236.tif" />

<img file="IL170873A_D0237.tif" />

Compound 524A was prepared by an analogous method as that of 520B, except using 3,5-dimethoxyphenylisocyanate in place of 2-chloro-6methylphenylisocyanate.

<img file="IL170873A_D0238.tif" />

Compound 524B was prepared by a method analogous to that used for the preparation of compound 473A, using 524A in place of 319A.

C ο—

<img file="IL170873A_D0239.tif" />

Compound 524C was prepared from compound 524B by a method analogous to that used for the preparation of compound 473B.

D Title Compound

The title compound was prepared by a method analogous to that used for the preparation of compound 473C, except using compound 524C in place of compound 473B HPLC Ret. Time 1.28 min method B

Example

Preparation pyrimidinvDaminol-5-thiazolecarboxannde

<img file="IL170873A_D0240.tif" />

^H3^Ck,CH₃

<img file="IL170873A_D0241.tif" />

Compound 525A was prepared by an analogous method as that of 520B, except using 2,2-diisopropylphenylisocyanate in place of 2-chloro-6methylphenylisocyanate.

N

N s

h₃c ,^H3^c_x ,CH ׳^H3^Cx-CH₃

Compound 525B was prepared by a method analogous to that used for the preparation of compound 473A, using 525A in place of 319A

<img file="IL170873A_D0242.tif" />

Compound 525C was prepared from compound 525B by a method analogous to that used for the preparation of compound 473B.

D Title Compound

The title compound was prepared by a method analogous to that used for the preparation of compound 473C, except using compound 525C in place of compound 473B. HPLC Ret. Time 1.6 min method B

Example ¹⁵ Preparation of ^,N-(2-Chloro-6-methvlphenvl)-2-r(2.6-dimethvl-4pyrimidinyDmethvlaminol -5-thiazolecarboxa mi d e

<img file="IL170873A_D0243.tif" />

A mixture of compound 321 (110 mg; 0.29 mmol), potassium carbonate (138 mg; 1 mmol) and iodomethane (0.06 ml; 1 mmol) in DMF was stirred hr at room temperature. After the reaction mixture was partitioned between ethyl acetate (25 ml) and water (25 ml), the organic layer was washed with water (2 x 25 ml) and brine (25 ml). Drying (MgSO₄) and concentration afforded an oil that was chromatographed on a 2.5 x 15 cm silica.gel column using 14%־ MeOH/CH₂Cl₂ and the fractions containing compound 526 were collected to give 20mg of product. HPLC Ret. Time 1.3min method B.

Example

Preparation of ^,N-(2-Chloro-6-methvIphenyl)-2-r(2.6-dimethvl-4¹⁰ pvrimidinvl)amino1-N-methyl-5-thiazolecarboxaTniHR

<img file="IL170873A_D0244.tif" />

Compound 527 was prepared by a method analogous to that used for the 15 preparation of compound 526, except the fractions containing compound 527 were collected to give 60mg of product. HPLC Ret. Time 1.23 min method B

Example 528

Preparation of 2-Bromo-N-, N-(2-chloro-6-methvlphenvl)(4-methoxvbenzyl)-5-thiazolecarboxamide

<img file="IL170873A_D0245.tif" />

To a cooled (0 °C) THF solution of 2-chloro-6-methyl aniline (2.86 mL, 23.3 mmol, 1.10 equiv) was added dropwise a 1.0 M solution of lithium bis(trimethylsilyl)amide (42.2 mL, 42.2 mmol, 2.00 equiv) via syringe.

The homogeneous solution was allowed to stir for 5 minutes, and then a THF solution of ethyl 2-bromo-5-thiazolecarboxylate (5.00 g, 21.1 mmol, 1.00 equiv, prepared in a manner analogous to compound 319A) was added via cannula. The solution was allowed to stir for 15 minutes until TLC analysis showed no remaining starting material. To the reaction was then added 4-methoxybenzyl chloride (7.15 mL, 52.7 mmol, 2.5 equiv), followed by a catalytic amount of tetrabutylammonium iodide (1.56g, 4.22 mmol, 0.20 equiv). The homogeneous mixture was allowed to stir overnight at ambient temperature and then concentrated in vacuo. The residue was partitioned between ethyl acetate and water, and the organic extracts were washed with brine and dried over Na₂SO₄. After filtration and removal of solvent, the product was purified by flash chromatography (10-20% ethyl acetate in hexanes) to afford the title compound as a tan solid (47%).

Example

Preparation of N-, N-(2-Chloro-6-methvlphenvl)-(4-methoxybenzvl)-

2-F(6-bromo-2-pyridinvl)aminol-5-thiazolecarboxamide

<img file="IL170873A_D0246.tif" />

Compound 529 was prepared in an analogous manner to 319B, except using 528 and 6-bromo-2-aminopyridine as the reactants.

Example

Preparation of N-(2-Chloro-6-methvlphenvl)-2-r(6-bromo- 204 2rPVndinvl)aminol-5-thiazolecarboxamidR

<img file="IL170873A_D0247.tif" />

Compound 529 (0.500 g, 0.919 mmol, 1.00 equiv) was dissolved in 5 mL trifluoroacetic acid and charged at ambient temperature with 2 mL anisole followed by 1 mL trifluoromethanesulfonic acid. The dark red homogeneous solution was allowed to stir overnight, and then quenched by carefully pouring the solution into an ice/sodium bicarbonate mixture. A white solid was filtered off and washed sequentially with water, 1:1 hexane/ether, and ether to afford the title compound (41%).

Examples 531-538

General Procedure

Compounds 531 to 538 were prepared to the general procedure described below. A 1-dram vial was charged with 530 and excess amine and heated 15 to 90 °C overnight. The residue was then purified by reverse phase HPLC to afford the pure compound. For the following examples 531 to 555 “HPLC Ret Time” is the HPLC retention time under the following conditions: YMC ODS-A C18 S7 3.0 x 50 mm, 2 min gradient starting from 100% solvent A (10% MeOH, 90% ¾0, 0.1% TFA) to 100% solvent B 20 (90% MeOH, 10% ¾0, 0.1% TFA), flow rate 5 mL/min, λ = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret time (min)</td>

<td> 531</td><td></td><td> ׳N-(2-Chloro-6methylphenyl)-2-[[6-[4(2-furanylcarbonyl)-lpiperazinyl]-2pyridinyl] amino] -5-</td><td> 1.56</td>

<td></td><td></td><td> thiazolecarboxamide</td><td></td>

<td> 532</td><td> a</td><td> ’2-[[6-[[3-(lHBenzimidazol-1yDpropyl] amino] -2pyridinyl] amino] -N-(2chloro-6methylphenyl)-5thiazolecarboxamide</td><td> 1.41</td>

<td> 533</td><td></td><td> 'N-(2-Chloro-6methylphenyl)-2-[[6[[4-(lH-imidazol-lyl)butyl] amino] -2pyridinyl] amino]-5thiazolecarboxamide</td><td> 1.24</td>

<td> 534</td><td></td><td> 'N-(2-Chloro-6methylphenyl)-2- [ [6[[5-(lH-imidazol-lyl)pentyl]amino]-2pyridinyl] amino]-5thiazolecarboxamide</td><td> 1.25</td>

<td> 535</td><td></td><td> 'N-(2-Chloro-6methylphenyl)-2-[[6[[3-(4-methyl-lpiperazinyDpropyl] ami no]-2pyridinyl]amino]-5thiazolecarboxamide</td><td> 1.14</td>

<td> 536</td><td></td><td> 'N-(2-Chloro-6methylphenyl)-2-[[6[[4-(lH-imidazol-1yDphenyl] amino] -2pyridinyl] amino] -5thiazolecarboxamide</td><td> 1.29</td>

<td> 537</td><td></td><td> 'N-(2-Chloro-6methylphenyl)-2-[[616-( lH-imidazol-1yl)hexyl] amino] -2pyridinyl] amino]-5 ;hiazolecarboxamide</td><td> 1.27</td>

׳N-(2-Chloro-6methylphenyl)-2- [[6[(3-lH-imidazol-lylpropyl)amino] -2pyridinyl] amino] -5thiazolecarboxamide

1.24

Example

Preparation of Ethyl-2-r(6-bromo-2-pvridinyl)aminol-5-thiazolecarboxylate

<img file="IL170873A_D0248.tif" />

Compound 539 was prepared in an analogous manner to 319B, except using ethyl 2-bromo-5־thiazolecarboxylate and 6-bromo-2-aminopyridine as the reactants.

Examples 540-550

General Procedure

Compounds 540 to 550 were prepared according to the general procedure described below. Compound 539 was condensed with the appropriate aniline according to the procedure for example 528 to afford the afford the corresponding N-(4-methoxybenzyl)amide. The intermediate bromopyridine was then reacted with N-(3-aminopropyl)-imidazole according to the procedure for examples 531 to 538 to afford the corresponding diaminopyridine. Removal of the 4-methoxybenzyl group according to the procedure described for example 530 followed by purification by reverse phase preparative HPLC afforded compounds 540 to 550.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret time (min)</td>

<td> 540</td><td></td><td> '2- [[6- [[3-( 1H-Imidazoll-yl)propyl] amino]-2pyridinyl] amino] -N-(4methoxyphenyl)-5thiazolecarboxamide</td><td> 1.12</td>

<td> 541</td><td></td><td> '2-[[6-[[3-(lH-Imidazoll-yl)propyl] amino] -2pyridinyl] amino] -N-(4phenoxyphenyl)-5thiazolecarboxamide</td><td> 1.48</td>

<td> 542</td><td> σ^χιΜο־”</td><td> N-(4-Chlorophenyl)-2[[6-[[3-(lH-imidazol-lyl)propyl] amino] -2pyridinyl] amino] -5thiazolecarboxamide</td><td> 1.31</td>

<td> 543</td><td></td><td> '2-[[6-[[3-(lH-Imidazoll-yl)propyl] amino] -2pyridinyl] amino] -N- [1(phenylmethyl)-lHindazol-5-yl]-5thiazolecarboxamide</td><td> 1.34</td>

<td> 544</td><td></td><td> 'N-(2-Ethylphenyl)-2[[6-[[3-(lH-imidazol-lyl)propyl] amino] -2pyridinyl] amino] -5thiazolecarboxamide</td><td> 1.18</td>

<td> 545</td><td> e^xv^-b</td><td> 'N-(2,6- Dimethoxyphenyl)-2[[6-[[3-(lH-imidazol-lyl)propyl] amino] -23yridinyl] amino] -5;hiazolecarboxamide</td><td> 1.11</td>

<td> 546</td><td> σ^χιχΧ^κ</td><td> 'N-(2,4- : limethoxyphenyl)-2!6-[ [3-( IH-imidazol-1yl)propyl] amino] -2pyridinyl] amino] -5;hiazolecarboxamide</td><td> 1.06</td>

<td> 547</td><td> iWkW)</td><td> '2-[[6-[[3-(lH-Imidazoll-yl)propyl] amino] -2pyridinyl] amino] -Nphenyl-5thiazolecarboxamide</td><td> 1.06</td>

<td> 548</td><td></td><td> '2- [[6- [(3-( 1H-Imidazoll־yl)propyl] amino] -2pyridinyl] amino] -N-(2methylphenyl)-5thiazolecarboxami de</td><td> 1.11</td>

<td> 549</td><td></td><td> 'N-(2-Chlorophenyl)-2[[6-[[3-(lH-imidazol־lyl)propyl] amino] -2pyridinyl] amino] -5thiazolecarboxa m ו d a</td><td> 1.16</td>

<td> 550</td><td></td><td> 'N-(2,6־Diethylphenyl)2-[[6-[[3-(lH-imidazoll-yl)propyl] aminoi-2pyridinyl] amino]-5־ thiazolecarboxamide I</td><td> 1.29</td>

Example

Reparation of Ethyl-2-r(6-bromo-2-pyridinvI)amino]-

4-methyl-5-thiazolecarboxvlate

<img file="IL170873A_D0249.tif" />

Compound 551 was prepared in an analogous manner to 319B, except using ethyl 2-bromo-4-methyl-5-thiazolecarboxylate and 6-bromo-2aminopyridine as the reactants.

Examples 552 and 553

Compounds 552 and 553 were prepared using a similar procedure described for the preparation of compounds 540 to 550, except using 15 compound 551 as the starting material.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret time (min)</td>

<td> 552</td><td></td><td> *N-(2-Chloro-6methylphenyl)-2-[[6[[3-(lH-imidazol-lyDpropyl] amino] -2pyridinyl] amino] -4methyl-5thiazolecarboxamide</td><td> 1.19</td>

<td> 553</td><td> z -׳Λ 30 Ϊ</td><td> '2-[[6-[[3-(lH-Imidazoll־yl)propyl] amino] -2pyridinyl] amino] -4methyl-N-[l(phenylmethyl)-lHindazol-5-yl]-5thiazolecarboxamide</td><td> 1.35</td>

Example

Reparation of ^,N-(2-Chloro-6-methvlphenvl)-2־rr3-ir3־(lH-i1m^,dazol-lyl)propyl] amino] phenyl] amino] -5-thiazolecarboxa midp

<img file="IL170873A_D0250.tif" />

A solution of 528 (0.127 g, 0.281 mmol, 1.00 equiv) a .nd 3-[N-,N-(tertbutoxycarbonyl)-(3-aminopropyl)-imidazoyl]-l,3-phenylenediamine (0.178 g, 0.563 mmol, 2.00 equiv) in 0.200 mL DMSO was heated at 120 °C in a sealed vial overnight. Purification by reverse phase preparative HPLC followed by deprotection according to the procedure for compound 530 afforded the title compound.

Example 555

210Preparation of'N-(2-Chloro-6-methvlphenyl)-2-if5-rr3-(lH-iTn1dazol-lyl)propynaminol-2-nitrophenvnamino]-5-thiazoIecarboxaTm^,Hp

<img file="IL170873A_D0251.tif" />

<img file="IL170873A_D0252.tif" />

\=j ¹־'^,ο

A solution of 2,4-difluoronitrobenzene (0.400 mL, 3.65 mmol, 1.00 equiv) in acetonitrile was charged with &amp;,00₃ (0.605 g, 4.38 mmol, 1.20 equiv) followed by ethyl-2-amino-5-thiazolecarboxylate (0.628 g, 3.65 mmol, 1.00 equiv) as a solid. The heterogeneous mixture was sealed and heated to 120 °C overnight. The solution was filtered and then concentrated in vacuo. Purification by flash chromatography afforded ethyl-2-[(3-fluoro-610 nitro-l-phenyl)amino]-

5-thiazolecarboxylate as a yellow solid (9%). This intermediate was coupled with 2-chloro-6-methyl aniline according to the procedure for compound 528 to afford N-(2-Chloro-6-methylphenyl)-2-[3-(fluoro-6-nitro- l-phenyl)amino]-5-thiazolecarboxamide (21%). The title compound was synthesized by reacting this intermediate with excess N-(3-aminopropyl)imidazole at 80 °C followed by purification by reverse phase preparative HPLC.

Examples 556566־

General Procedure:

Compounds 556 to 566 were prepared according to the general procedure described below. A mixture of 2-bromo-N-[2-chloro-6-methylphenyl]-5thiazolecarboxamide 319A, an aniline (1 eq), 1.0 N aqueous HC1 (0.5 eq) in n-BuOH was heated overnight at 120°C in a sealed vial. This was diluted with methanol and the product was isolated by preparative HPLC (YMC S5 ODS 30 x 100 mm column eluted with a gradient. οητη prised of two solvent mixtures (mixture A: 10% MeOH, 90% water, and 0.1% TFA;

mixture B: 90% MeOH, 10% water, and 0.1% TFA). For anilines substituted with a carboxylic acid group, the reaction mixture was treated with 1 N aqueous NaOH (5 eq) overnight before final purification of the product by HPLC. ‘HPLC Ret Time” is the HPLC retention time under the following conditions: YMC S5 OSD 4.6 x 30 mm (for 556 to 560) or YMC S7 ODS 3 x 50 mm column (for 561 to 566), 2 min gradient starting from

100% solvent A (10% MeOH, 90% H₂O, 0.1% TFA) to 100% solvent B (90%

MeOH, 10% ¾0, 0.1% TFA), flow rate 5 mL/min, λ = 220 nM.

<td> EX. NO.</td><td> Compound Structure</td><td> Compound Name</td><td> HPLC Ret time (min)</td>

<td> 556</td><td>^Me? Cl ^Me0AiA Ν-Ά H L, MeO'^A^N S \\ Η O /</td><td> N-(2-Chloro-6methylphenyl)-2[(3,4,5-trimethoxyphenyl)amino] -5thiazolecarboxamide</td><td> 1.63</td>

<td> 557</td><td> Cl ־W</td><td> N-(2-Chloro-6-methylphenyl)-2- [(4-methoxyphenyDamino] -5thiazolecarboxamide</td><td> 1.63</td>

<td> 558</td><td> Cl</td><td> N-(2-Chloro-6־methylphenyl)-2-[(3-methoxyphenyl)amino] -5thiazolecarboxamide</td><td> 1.70</td>

<td> 559</td><td> Cl qaa MeO</td><td> N-(2-Chloro-6-methylphenyl)-2- [(2-methoxyphenyDamino] -5thiazolecarboxamide</td><td> 1.65</td>

<td> I 560</td><td colspan="2"> 1 N-(2-Chloro-6-methyl- J? Cl phenyl)-2-[(3,5- jQ \ dimethoxyphenyl)- amino]-5thiazolecarboxamide</td><td> 1.55</td>

<td> 561</td><td colspan="2"> N-(2-Chloro-6-methyl- J,. h ^CL XX \ (dimethylamino)- h ^s 0 phenyl] amino]-5- [ thiazolecarboxamide</td><td> 1.25</td>

<td> 562</td><td colspan="2">_a N-(2-Chloro-6- ^׳Vj[ methylphenyl)-2-[[4- ⁵ο (4-morpholinyl)phenyI amino]-5- thiazolecarboxamide</td><td> 1.24</td>

<td> | 563</td><td colspan="2"> N-(2-Chloro-6- ^Ν־λ n ^methy^Iphenyl)-2-[[3- (carboxymethyl)- ^{H 0} phenyl] amino]-5- thiazolecarboxamide</td><td> 1.36</td>

<td> 564</td><td colspan="2"> N-(2-CKloro-6ci methylphenyl)-2-[[3-(3- ’ \XX ^carboxyp^pyD- h 0 phenyl] amino]-5- thiazolecarboxamide</td><td> 1.48</td>

<td> 565</td><td colspan="2"> ho,c״X^ ν-λ h ^C\ N-(2-Chloro-6methylphenyl)-2-[[4- ^{H 0} (carboxymethyDphenyl ]amino]-5- __________ I thiazolecarboxamide</td><td> 1.35</td>

<td> 566</td><td> H ci</td><td> N-(2-Chloro-6methylphenyl)-2- [(2methyl-lHbenzimidazol-5yl)amino]-5thiazolecarboxamide</td><td> 1.27</td>

Example

N-(2-Chloro-6-methvlphenvl)-2-rr1־r3-ilH-imidazol-l-yl)pr0pvn-lHbenzimidazol-4-vllaminol-5-thiazolecarboxaTT1irift

<img file="IL170873A_D0253.tif" />

A mixture of l-bromo-3-chloropropane (10 mL, 0.10 mmole), imidazole (6.81 gm, 0.10 mmole) in ethanolic NaOEt (41.3 mL, 21 wt%, 1.1 mmole) was heated at reflux for 1 hr. After cooling to RT, this was filtered and the filter cake was washed with EtOH. The solvent was removed from the filtrate to afford crude 3-chloro-l-(imidazo-l-yl)-propane as an oil. A portion ofthe crude chloride (1.07 gm, 7.40 mmole) was added to a mixture of 4-nitro-henzimidazole (1.09 gm, 6.66 mmole) and NaH (293 mg, 60% in oil, 8.14 mmole) in DMF (15 mL). After being heated at 60°C overnight and then 75°C for 3 hr, the solvent was removed. The residue was partitioned between water and a mixture of 10% MeOH in DCM. The organic phase was separated, dried (Na₂SO₄) and the solvents removed. Radial chromatography (4 mm silica gel plate that was eluted with a step gradient of DCM containing 2, 3, 4, .. 10% MeOH) afforded the major product, l-[3-imidazo-l-ylpropyll-4-nitro-benzimidazole as a solid (513 mg, 28%). A mixture of this material (250 mg) and 10% palladium on charcoal (200 mg) in EtOH (10 mL) under a hydrogen atmosphere (balloon) was vigorously stirred for 1 hr. Removal of the catalyst by .

filtration and the solvent under reduced pressure left the crude 4-amino-l[3-imidazo-l-ylpropyl]-benzimidazole as a solid. A portion of this material (46 mg, 0.191 mmole) was added to a mixture of 319A (63 mg, 1.0 eq), an aqueous solution of HC1 (0.24 mL, 1.0 M, 1.25 eq) and n-BuOH (1 mL).

This was heated in a sealed vial at 120°C for 44 hr. After cooling to RT,

567 (HPLC retention time (YMC ODS S5 4.6 x 30 mm): 1.20 min) _was isolated by preparative HPLC.

Example

N:(2-Chloro-6־methylphenyl)-2-ir1-i2-(lH-imidazol-l-vl)ethvn־lH-indazol-

6-yll amino! -5-thiazolecarboxamide

<img file="IL170873A_D0254.tif" />

A mixture of l-bromo-2-chloroethane (4.6 mL, 0.055 mole), imidazole (3.40 gm, 0.050 mole) in ethanolic NaOEt (19 mL, 21 wt%, 1 eq) was heated at reflux for 2 hr. After cooling to RT, the reaction was filtered and the filter cake was washed with EtOH. The solvent was removed from the filtrate to afford crude 2-chloro-l-(imidazo-l-yl)-ethane. A portion of the crude chloride (2.24 gm, 17.2 mmole) was added to a mixture of 6-nitro-indazole (1.63 gm, 10.0 mmole), K>CO₃ (1.50 mg, 1.1 eq), and KI (1.70 gm, 1.1 eq) in DMF (15 mL). After being heated at 70°C overnight and then 90°C for 4 hr, the solvent was removed. The residue was partitioned between water and a mixture of 5% MeOH in DCM. The organic phase was separated, dned (Na₂SO₄) and the solvents removed. Radial chromatography (4mm -215silica gel plate that was eluted with a step gradient of DCM ennf-aining 0,

1,2% MeOH) afforded 659 mg of l-[2-imidazo-l־ylethyl]-6-nitro-indazole and 450 mg of the isomeric 2-[2-imidazo-l-ylethyl]-6-nitro-indazole. A mixture of l-[2-imidazo-l-ylethyl]-6-nitro-indazole (650 mg) and 10% palladium on charcoal (600 mg) in EtOH (10 mL) under a hydrogen atmosphere (balloon) was vigorously stirred overnight. Removal of the catalyst by filtration and the solvent under reduced pressure left the crude

6-amino-l-[2-imidazo-l-ylethyl]-indazole as a solid. A portion of this material (68.1 mg, 1.5 eq) was added to a mixture of 556 (99.3 mg, 0.300 mmole), an aqueous solution of HC1 (0.45 mL, 1.0 M, 1.5 eq) and n־BuOH (1.5 mL). This was heated in a sealed vial at 120°C for 44 hr. After cooling to RT, 568 (HPLC retention time (YMC CDS S7 3 x 50 mm): 1.31 min) was isolated by preparative HPLC.

Example 569

N-(2-Chloro-6-methylphenvl)-2-rr2-r2-(lH-imidazol-l-vl)ethvl1-2H־indazol-

6-vl1aTninol-5-thiazolecarboxamide

Cl .N

Ν'

N.

N׳^

Beginning with the isomeric 2-[2-imidazo-l־ylethyl]-6-nitro-indazole, 569 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.28 min) was prepared in the same manner as 568.

Example

Nri2-Chloro6־-methvlphenvl)-2- i(l-methvl-lH-benzimidazol-6-vl)amin thiazolecarboxamide

<img file="IL170873A_D0255.tif" />

and

Example

N7(2-Chloro-6-methylphenvl)-2-[(l-methyl־lH-benzimidazol-5-yl)aminol-5thiazolecarboxamide

<img file="IL170873A_D0256.tif" />

Beginning with 5-nitrobenzimidazole and methyl iodide, 570 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.23 min) and 571 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.23 min) were prepared in the same manner as compounds 557 and 558.

Example 572 -21720

N-(2-Chloro-6-methvlphenvl)2־-ri2-i3-(lH-imidazol־l-yUprppyl]amino1-lH:

bftn rimi dazol-5-vll amino] -5-thiazolecarboxamide

<img file="IL170873A_D0257.tif" />

A mixture of 2-chloro-5־nitro־benzimidazole (985 mg, 5.0 mmole) and 1-(3aminopropyD-imidazole (1.8 mL, 3 eq) in toluene (15 mL) was heated at reflux for 5 hr. The reaction was partitioned between EtOAc and brine to give a precipitate that was collected by filtration. Flash chromatography of this material (silica gel; stepwise gradient elution with mixtures of DCM containing 1, 2, 3,..10% MeOH) afforded 2-[3-[imidazo-l-yl]propylamino]-5-nitro-benzimidazole (550mg) as a solid. This material was combined with 10% Pd on charcoal (500 mg), suspended in EtOH, and stirred under a hydrogen atmosphere (balloon) overnight. Removal of the catalyst by filtration and the solvent under reduced pressure left the crude

5-amino-2-[3-imidazo-l-ylpropylamino]- benzimidazole as a solid. A portion of this material (77 mg, 0.30 mmole) was added to a mixture of 319A (99 mg, 1.0 eq), an aqueous solution of HC1 (0.60 mL, 1.0 M, 2 eq) and n-BuOH (1.5 mL). This was heated in a sealed vial at 120°C for 20 hr. After cooling to RT, 572 (HPLC retention time (YMC CDS S7 3 x 50 τητη): 1.20 min) was isolated by preparative HPLC.

Example 573

N-(2-Chloro-6-methvlphenyl)-2-if2-(4-morpholinylmethvl)-lHbenzimidazol-5-yll ami 5- 01 ת-thiazolecarboxami d e

<img file="IL170873A_D0258.tif" />

A mixture of 3,4-diamino-nitrobenzene (15.3 g, 0.10 mole) and chloroacetic acid (14.18 gm, 1.5 eq) in 5.0 N aqueous HC1 (80 mL) was heated at reflux for 1 hr. After cooling to RT, the reaction was filtered through celite and the filtrate was stored at 0°C for 2 days. The crystals that formed, were collected and recrystallized from a mixture of EtOH and water to give 7.2 gm of the hydrogen chloride salt of 2-chloromethyl-5-nitro־benzimidazole. A portion of this salt (528 mg, 2.13 mmole) and morpholine (1.31 mL, 7 eq) in toluene (15 mL) were heated at reflux for 4 hr. After cooling to RT, the reaction was filtered and the filter cake was washed with toluene. The solvent was removed from the filtrate to leave the crude 2-[Nmorpholinylmethyl]-5-nitro-benzimidazole as an oil. A portion of this material (657 mg) and 10% palladium on charcoal (650 mg) in EtOH (10 mL) was stirred overnight under a hydrogen atmosphere (balloon). Removal of the catalyst by filtration and the solvent left the crude 5amino-2-[N-morpholinylmethyl]-benzimidazole as an oil. A portion of this material was coupled with 556 as described for 570 to afford 573 (HPLC retention time (YMC ODS S7 3 x 50 mm): 0.92 min).

Example

N-(2-Chloro-6-methvlphenvl)-2־ri2-(lH־imidazol-l-vlmethyl)-lHben zimi dazol-5-vl! amino! -5־thiazolecarboxamide

<img file="IL170873A_D0259.tif" />

'Regirming with imidazole and 2-chloromethyl-5-nitro-benzimidazole compound 574 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.17 min) was prepared in the same manner as compounds 570.

Example 575

N-(2-Chloro-6-methvlphenvl)-2-ri3-rr5-(lH־imidazol-l-vl)-2־ pvri di n vl! amino! phenyl! arni no! -5-thiazolecarboxamide

<img file="IL170873A_D0260.tif" />

A mixture of 3-nitroaniline (2.91 gm, 21.1 mmole) and 2,5־ dibromopyridine (5.0 gm, 1 eq) was heated at 185°C for 1 hr. After cooling to RT, the solid was broken up and treated with a mixture of saturated aq.

NaHCO₃ and 10% MeOH in DCM. The suspended solid was collected by filtration and washed with a little 10% MeOH in DCM and then water to leave, after drying, 3.72 gm of crude N-[5-bromo-pyridin-2-yll-5nitroaniline. A portion of this material (500 mg, 1.70 mmole) was combined with imidazole (116 mg, 1 eq), Cui (81 mg, 0.25 eq), and KCC^ (235 mg, 1 eq) in DMF (2 mL) and the mixture was heated at 130°C for 2 days. After cooling to RT, the solvent was removed and the residue was partitioned between water and a mixture of 20% MeOH in DCM. The organic phase was removed, dried (Na₂SO₄), and the solvents removed to leave the crude N-[5-imidazo-l-yl]-pyridin-2-yl]-5-nitroaniline as a solid. This was taken and treated with 10% palladium on charcoal (650 mg) in

EtOH under a hydrogen atmosphere for 1.5 hr. Removal of the catalyst and then the solvent left the crude N-[5-imidazo-l-yl]-pyridin-2-yl]-5aminoaniline. It was purified by radial chromatography (4 mm silica gel plate that was eluted with a step gradient of DCM containing 1, 2, 3,..6% MeOH). The aniline was then coupled with 319A as described for 570 to afford 575 (HPLC retention time (YMC ODS S5 4.6 x 30 mm). 1.42 min) Example

N-(2-Chloro-6-methvlphenvl)-2־rr3-r3-(lH-imidazol-lyl)propoxvlphenyllaminoi-5-thiazolecarboxamide

<img file="IL170873A_D0261.tif" />

and

Example 577

N2)־-ChIoro6־-methvlphenvl)-2-i[4-l3־-(lH-imidazol-lvl־)propoxy!phenyl!amino!-5־thiazolecarboxamide

<img file="IL170873A_D0262.tif" />

A suspension of 3-nitrophenol (837 mg, 6.02 mmole), l-chloro1]-3־m1dazo- l-yl]-propane (871 mg, 1 eq), K2CO₃ (3.3 gm, 4 eq) and Nal (1.0 gm, 1.1 eq) in DMF was heated at 120°C for 6 hr. After cooling to RT, the reaction was filtered and the filter cake was washed with DMF. The solvent was removed from the filtrate and the residue was chromatographed (radial chromatography; 4 mm silica gel plate that was eluted with a step gradient of DCM containing 0,1, 2.5, 5, 7.5% MeOH) to afford 400 mg of

3-[3-imidazo־l-ylpropyloxy]]- nitrobenzene. This was treated with 10% palladium on charcoal (400 mg) in EtOH under a hydrogen atmosphere for 4 hr. Removal of the catalyst and the solvent left 3-[3-imidazo-lylpropyloxy]]- aniline was then coupled with 319A as described for 570 to afford 576 (HPLC retention time (YMC ODS S5 4.6 x 30 mm): 1.33 min). ־Beginning with 4-nitrophenol and l-chloro-3-[nn1dazo-l־yl]-propane 577 (HPLC retention time (YMC ODS S5 4.6 x 30 mm): 1.42 min) was prepared in a similar manner as 576.

Example 578

N2)־-Chloro-6-methylphenvl)-2־rr4-i2-(lH-imidazol-l-yl)_ethoxv!-3methoxyphenyl! amino! -5-thiazolecarboxamide

<img file="IL170873A_D0263.tif" />

Beginning with 2-methoxy-4-nitrophenol and l-chloro-3־[imidazo-l-yl]5 ethane, 578 (HPLC retention time (YMC CDS S5 4.6 x 30 mm). 1.35 _min) was prepared in a similar manner as 576.

Example

N-(2-Chloro-6-methylphenyl)-2־rr3-rif3-(lH-imidazol-l ¹⁰ yl)propy1!amino!sulfonv1!phenvl!amino!-5-thiazolecarboxarnide

<img file="IL170873A_D0264.tif" />

and

Example

N-(2-Chloro-6-methvlphenvl)-2-[f4-Fii3-(lH-imidazol-l¹⁵ vDpropyll amino! sulfonyl! phenyl! amino! -5-thiazolecarboxa m i d e

<img file="IL170873A_D0265.tif" />

3-Imidazo-l-yl-propylamine (2.04 mL, 2.5 eq) was added to a solution of 3- nitro-benzenesulfonyl chloride (1.5 gm, 6.77 mmole) in THE (20 mL) at

RT. After 1 hr, the solvent was removed and the residue was partitioned between water and a mixture of 10% MeOH in DCM. The organic phase was separated, washed with water and dried (Na2SO4). The crude N-[3[1 midazn-1 -y]]-propyl]-3-nitro-benzenesulfonamide was treated ־with 10% palladium on charcoal (2 gm) in THF (60 mL) under a hydrogen atmosphere overnight. Removal of the catalyst and then the solvent left crude 3-amino-N3]־-[imidazo-l-yl]-propyl]-benzenesulfonamide which was then coupled with 319A as described for 570 to afford 579 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.22 min). Beginning with 410 nitro-benzenesulfonyl chloride and 3-[imidazo-l-yl]-propylamine, 580 (HPLC retention time (YMC ODS S7 3 x 50 mm): 1.21 min) was prepared in a similar manner as 579.

. A pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0266.tif" />

<img file="IL170873A_D0267.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is pancreatic cancer.

11. A pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0268.tif" />

<img file="IL170873A_D0269.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is prostate cancer.

12. A pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

<img file="IL170873A_D0270.tif" />

<img file="IL170873A_D0271.tif" />

in combination with a pharmaceutically acceptable carrier, wherein the cancer is pediatric sarcoma.

13. A pharmaceutical composition for the oral treatment of cancer comprising an effective amount of the compound of formula IV or a salt thereof:

’N

N

CH

N ,N .N

K

N

IV in combination with a pharmaceutically acceptable carrier, wherein the cancer is resistant STI-571.