US20060074092A1 - Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin K inhibitory activity for the treatment of inflammations and other diseases - Google Patents
Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin K inhibitory activity for the treatment of inflammations and other diseases Download PDFInfo
- Publication number
- US20060074092A1 US20060074092A1 US11/291,007 US29100705A US2006074092A1 US 20060074092 A1 US20060074092 A1 US 20060074092A1 US 29100705 A US29100705 A US 29100705A US 2006074092 A1 US2006074092 A1 US 2006074092A1
- Authority
- US
- United States
- Prior art keywords
- lower alkyl
- dimethyl
- phenyl
- heterocyclyl
- piperazin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- DWFBEQKWKXVQNW-UHFFFAOYSA-N COC1=CC=C(C)C=C1OCCN1CCCCC1 Chemical compound COC1=CC=C(C)C=C1OCCN1CCCCC1 DWFBEQKWKXVQNW-UHFFFAOYSA-N 0.000 description 1
- DIARHFIFVCJXDK-UHFFFAOYSA-N COC1=CC=C(CC(=O)NCC2=C(NCC(C)(C)C)N=C(Cl)N=C2)C=C1 Chemical compound COC1=CC=C(CC(=O)NCC2=C(NCC(C)(C)C)N=C(Cl)N=C2)C=C1 DIARHFIFVCJXDK-UHFFFAOYSA-N 0.000 description 1
- BGPMUYLZRRZAKH-UHFFFAOYSA-N COC1=CC=C(CNC(=O)C2=C(NCC(C)(C)C)N=C(Cl)N=C2)C=C1 Chemical compound COC1=CC=C(CNC(=O)C2=C(NCC(C)(C)C)N=C(Cl)N=C2)C=C1 BGPMUYLZRRZAKH-UHFFFAOYSA-N 0.000 description 1
- PPNRBCVAYHMCLV-UHFFFAOYSA-N COCCN1CCC(CC2=CC=C(C)C=C2)CC1 Chemical compound COCCN1CCC(CC2=CC=C(C)C=C2)CC1 PPNRBCVAYHMCLV-UHFFFAOYSA-N 0.000 description 1
- RHGMVDCRPSIVDP-UHFFFAOYSA-N COCCN1CCN(C2=CC(C)=CC=C2)CC1 Chemical compound COCCN1CCN(C2=CC(C)=CC=C2)CC1 RHGMVDCRPSIVDP-UHFFFAOYSA-N 0.000 description 1
- OMYQJAFUTDFJLN-UHFFFAOYSA-N COCCN1CCN(C2=CC=C(C(=O)OC)C=C2)CC1 Chemical compound COCCN1CCN(C2=CC=C(C(=O)OC)C=C2)CC1 OMYQJAFUTDFJLN-UHFFFAOYSA-N 0.000 description 1
- CDRDBOVXTXJGKD-UHFFFAOYSA-M COCCN1CCN(C2=CC=C(C(=O)O[Na])C=C2)CC1 Chemical compound COCCN1CCN(C2=CC=C(C(=O)O[Na])C=C2)CC1 CDRDBOVXTXJGKD-UHFFFAOYSA-M 0.000 description 1
- RRAOMUADPHWJPA-UHFFFAOYSA-N COCCN1CCN(C2=CC=C(CC(C)(C)C)C=C2)CC1 Chemical compound COCCN1CCN(C2=CC=C(CC(C)(C)C)C=C2)CC1 RRAOMUADPHWJPA-UHFFFAOYSA-N 0.000 description 1
- VLOODHWTRPYFIS-UHFFFAOYSA-N ClCC1=C(Cl)N=C(Cl)N=C1 Chemical compound ClCC1=C(Cl)N=C(Cl)N=C1 VLOODHWTRPYFIS-UHFFFAOYSA-N 0.000 description 1
- MXYMOGCKIBDDPZ-UHFFFAOYSA-N [H]C(=O)C1=C(NCC(C)(C)C)N=C(Cl)N=C1 Chemical compound [H]C(=O)C1=C(NCC(C)(C)C)N=C(Cl)N=C1 MXYMOGCKIBDDPZ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C07—ORGANIC CHEMISTRY
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- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/32—One oxygen, sulfur or nitrogen atom
- C07D239/42—One nitrogen atom
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- A61P19/00—Drugs for skeletal disorders
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
- A61P19/10—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P21/00—Drugs for disorders of the muscular or neuromuscular system
- A61P21/04—Drugs for disorders of the muscular or neuromuscular system for myasthenia gravis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P33/00—Antiparasitic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P33/00—Antiparasitic agents
- A61P33/02—Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
- A61P33/06—Antimalarials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P33/00—Antiparasitic agents
- A61P33/10—Anthelmintics
- A61P33/12—Schistosomicides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- This invention relates to inhibitors of cysteine proteases, in particular to heteroaryl nitrile cathepsin K inhibitors and to their pharmaceutical use for the treatment or prophylaxis of diseases or medical conditions in which cathepsin K is implicated.
- Cathepsin K is a member of the family of lysosomal cysteine cathepsin enzymes, e.g. cathepsins B, K, L and S, which are implicated in various disorders including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis, tumors (especially tumor invasion and tumor metastasis), coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabilization), autoimmune diseases, respiratory diseases, infectious diseases and immunologically mediated diseases (including transplant rejection).
- cathepsins B, K, L and S lysosomal cysteine cathepsin enzymes, e.g. cathepsins B, K, L and S, which are implicated in various disorders including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis, tumors (especially tumor invasion and tumor metastasis), coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabil
- the present invention provides a compound of formula I, or a pharmaceutically acceptable salt or ester thereof wherein
- Halo or halogen denote I, Br, Cl or F.
- lower referred to above and hereinafter in connection with organic radicals or compounds respectively defines such as branched or unbranched with up to and including 7, preferably up to and including 5 and advantageously one, two or three carbon atoms.
- a lower alkyl group is branched or unbranched and contains 1 to 7 carbon atoms, preferably 1-5 carbon atoms.
- Lower alkyl represents; for example, methyl, ethyl, propyl, butyl, isopropyl isobutyl, tertiary butyl or neopentyl (2,2-dimethylpropyl).
- Halo-substituted lower alkyl is C 1 -C 7 lower alkyl substituted by up to 6 halo atoms.
- a lower alkoxy group is branched or unbranched and contains 1 to 7 carbon atoms, preferably 1-4 carbon atoms.
- Lower alkoxy represents for example methoxy, ethoxy, propoxy, butoxy, isopropoxy, isobutoxy or tertiary butoxy.
- a lower alkene, alkenyl or alkenyloxy group is branched or unbranched and contains 2 to 7 carbon atoms, preferably 2-4 carbon atoms and contains at least one carbon-carbon double bond.
- Lower alkene lower alkenyl or lower alkenyloxy represents for example vinyl, prop-1-enyl, allyl, butenyl, isopropenyl or isobutenyl and the oxy equivalents thereof.
- a lower alkyne, alkynyl or alkynyloxy group is branched or unbranched and contains 2 to 7 carbon atoms, preferably 2-4 carbon atoms and contains at least one carbon-carbon triple bond.
- Lower alkyne or alkynyl represents for example ethynyl, prop-1-ynyl, propargyl, butynyl, isopropynyl or isobutynyl and the oxy equivalents thereof.
- oxygen containing substituents e.g. alkoxy, alkenyloxy, alkynyloxy, carbonyl, etc. encompass their sulphur containing homologues, e.g. thioalkoxy, thioalkenyloxy, thioalkynyloxy, thiocarbonyl, sulphone, sulphoxide etc.
- Aryl represents carbocyclic or heterocyclic aryl.
- Carbocyclic aryl represents monocyclic, bicyclic or tricyclic aryl, for example phenyl or phenyl mono-, di- or tri-substituted by one, two or three radicals selected from lower alkyl, lower alkoxy, aryl, hydroxy, halogen, cyano, trifluoromethyl, lower alkylenedioxy and oxy-C 2 -C 3 -alkylene and other substituents, for instance as described in the examples; or 1- or 2-naphthyl; or 1- or 2-phenanthrenyl.
- Lower alkylenedioxy is a divalent substituent attached to two adjacent carbon atoms of phenyl, e.g. methylenedioxy or ethylenedioxy.
- Oxy-C 2 -C 3 -alkylene is also a divalent substituent attached to two adjacent carbon atoms of phenyl, e.g. oxyethylene or oxypropylene.
- phenyl e.g. oxyethylene or oxypropylene.
- An example for oxy-C 2 -C 3 -alkylene-phenyl is 2,3-dihydrobenzofuran-5-yl.
- carbocyclic aryl is naphthyl, phenyl or phenyl optionally substituted, for instance, as described in the examples, e.g. mono- or disubstituted by lower alkoxy, phenyl, halogen, lower alkyl or trifluoromethyl.
- Heterocyclic aryl represents monocyclic or bicyclic heteroaryl, for example pyridyl, indolyl, quinoxalinyl, quinolinyl, isoquinolinyl, benzothienyl, benzofuranyl, benzopyranyl, benzothiopyranyl, furanyl, pyrrolyl, thiazolyl, oxazolyl, isoxazolyl, triazolyl, tetrazolyl, pyrazolyl, imidazolyl, thienyl, or any said radical substituted, especially mono- or di-substituted as defined above.
- heterocyclic aryl is pyridyl, indolyl, quinolinyl, pyrrolyl, thiazolyl, isoxazolyl, triazolyl, tetrazolyl, pyrazolyl, imidazolyl, thienyl, or any said radical substituted, especially mono- or di-substituted as defined above.
- Cycloalkyl represents a saturated cyclic hydrocarbon optionally substituted by lower alkyl which contains 3 to 10 ring carbons and is advantageously cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl optionally substituted by lower alkyl.
- N-heterocyclyl is as defined above.
- Preferred N-heterocyclic substituents are optionally substituted pyrrolidine, pyrrole, diazole, triazole, tetrazole, imidazole, oxazole, thiazole, pyridine, pyrimidine, triazine, piperidine, piperazine, morpholine, phthalimde, hydantoin, oxazolidinone or 2,6-dioxo-piperazine and, for example, as hereinafter described in the examples.
- the invention provides a compound of formula IIa, or a pharmaceutically-acceptable salt or ester thereof wherein R2 is as defined above and R5′′′ and R6′′′ are as defined above for R5 and R6 respectively.
- R2 is preferably R2′ which is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R2′ is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5′′′ and R6′′′ may be such that R5′′′ and R6′′′ together with the nitrogen atom to which they are joined to form an N-heterocyclyl group
- R5′′′ is preferably optionally substituted (aryl-lower-alkyl, heterocyclyl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5′′′ is preferably optionally substituted by from 1-4 substituents selected from halo, hydroxy, nitro, cyano, lower-alkyl, lower-alkoxy or lower-alkoxy-lower-akyl.
- R5′′′ is 4-methoxy-benzyl, 3-methoxy-benzyl, 4-(4-methyl-piperazin-1-yl)-benzyl, 4-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-benzyl, 1-methyl-1-phenyl-ethyl, 2-(4-methoxy-phenyl)-1,1-dimethyl-ethyl, 2-(4-fluoro-phenyl)-1,1-dimethyl-ethyl, 4-(4-methyl-piperazin-1-yl)-phenyl)-ethyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-1,1-dimethyl-ethyl, 2- ⁇ 4-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl ⁇ -1,1-dimethyl-ethyl, 2- ⁇ 3-[4-(2-(2-
- R5′′′ and R6′′′ together with the nitrogen atom to which they are joined to form an N-heterocyclyl group is 4-(2-pyridin-4-yl-ethyl)-piperazin-1-yl, [4-(2-pyridin-2-yl-ethyl)piperazin-1-yl, 4-pyridin-4-ylmethyl-piperazin-1-yl, 4-(2-piperidin-1-yl-ethyl)-piperazin-1-yl, 4-(2-pyrrolidin-1-yl-ethyl)-piperazin-1-yl, 4-(2-Diethylamino-ethyl)-piperazin-1-yl, 4-(3-Diethylamino-propyl)piperazin-1-yl, 4-(1-methyl-piperidin-4-yl)-piperazin-1-yl, 4-pyrrolidin-1-yl-piperidin-1-yl, 4-(2-methoxy-ethyl, 4-
- the invention provides a compound of formula II, or a pharmaceutically acceptable salt or ester thereof wherein R2 is as defined above and R5′ is as defined above for R5.
- R2 is preferably R2′ which is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R2′ is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5′ is preferably optionally substituted (aryl-lower-alkyl, heterocyclyl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5′ is preferably optionally substituted by from 14 substituents selected from halo, hydroxy, nitro, cyano, lower-alkyl, lower-alkoxy, lower-alkoxy-carbonyl or lower-alkoxy-lower-akyl.
- R5′ is 4-methoxy-phenyl, 4-(1-propyl-piperidin-4-yl)-phenyl, 4-(4-methyl-piperazin-1-yl)-phenyl, 4-[1-(2-methoxy-ethyl)-piperidin-4-yl]-phenyl, 4-(4-propyl-piperazin-1-yl)-phenyl, 3-[4-(4-methyl-piperazin-1-yl)-phenyl]-propionyl, 3-[3-(4-methyl-piperazin-1-yl)-phenyl]-propionyl, 4-(4-ethyl-piperazin-1-yl)phenyl, 4-(4-isopropyl-piperazin-1-yl)-phenyl, 4-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl, 4-[4-(2-methoxy-ethyl)-piperazin-1-y
- the invention provides a compound of formula III or a pharmaceutically acceptable salt or ester thereof wherein R2 is as defined above and R5′′ is as defined above for R5.
- R2 is preferably R2′′ which is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R2′′ is lower alkyl, e.g. straight chain or more preferably branched-chain C 1 -C 6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C 3 -C 6 cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5′′ is preferably optionally substituted (aryl-loweralkyl, aryl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5′′ is preferably optionally substituted by from 1-4 substituents selected from halo, hydroxy, nitro, cyano, optionally mono- or di-loweralkyl substituted amino, oxo, lower-alkyl, lower-alkenyl, lower-alkynyl, C 3 -C 10 cycloalkyl or C 3 -C 10 cycloalkyl-lower-alkyl.
- R5′′ is 4-methoxybenzyl, 5-methyl-2-phenyl-2.H.-pyrazol-3-yl, 4-chlorobenzyl, 4-dimethylaminobenzyl, benzyl, 2-phenyl-2.H.-pyrazol-3-yl, 2-phenyl-phenyl, 2-pyrrol-1-yl-phenyl, 2-imidazol-1-yl-phenyl, 5-methyl-2-(4-chlorophenyl)-2.H.-pyrazol-3-yl, 5-methyl-2-(2-chlorophenyl)-2.H.-pyrazol-3-yl and 5-methyl-2-(2,4-dichlorophenyl)-2.H.-pyrazol-3-yl, 2-(4-methoxy-phenyl)-1,1-dimethyl-ethyl, 1,1-dimethyl-2-[3-(4-methyl-piperazin-1-yl)-phenyl]-ethyl, 1,1
- Particularly preferred compounds of the invention are the compounds of formula II, IIa and III as described in the examples.
- cyanation reactions may be carried out under various conditions and in the presence of solvents and other reagents as required, including catalysts and co-factors as known in the art and for instance, as hereinafter described in the examples.
- the starting materials may be prepared and the coupled and cyclised products may be converted into other compounds of formula II and salts and esters thereof using methods and procedures known in the art, and as hereinafter described in the examples.
- the present invention further provides a process for the preparation of a compound of Formula II or a pharmaceutically acceptable salt or ester thereof wherein R2 and R5′ are as defined above, comprising cyanation of a 2-chloro precursor of formula IV wherein R2 and R5′ are as defined above, and thereafter, if desired, converting the product obtained into a further compound of formula II, or into a salt or ester thereof.
- the starting materials may be prepared and the coupled and cyclised products may be converted into other compounds of formula III and salts and esters thereof using methods and procedures known in the art, and as hereinafter described in the examples.
- the present invention further provides a process for the preparation of a compound of Formula III or a pharmaceutically acceptable salt or ester thereof wherein R2 and R3 are as defined above, comprising either cyanation of a 2-chloro precursor of formula V or coupling of a catboxylic acid precursor of formula VI with a corresponding amine of formula VII wherein the R2 and R5′′ are as defined above, and thereafter, if desired, converting the product obtained into a further compound of formula III, or into a salt or ester thereof.
- Compounds of the Invention having basic groups can be converted into acid addition salts, especially pharmaceutically acceptable salts. These are formed, for example, with inorganic acids, such as mineral acids, for example sulfuric acid, a phosphoric or hydrohalic acid, or with organic carboxylic acids, such as (C 1 -C 4 )alkanecarboxylic acids which, for example, are unsubstituted or substituted by halogen, for example acetic acid, such as saturated or unsaturated dicarboxylic acids, for example oxalic, succinic, maleic or fumaric acid, such as hydroxycarboxylic acids, for example glycolic, lactic, malic, tartaric or citric acid, such as amino acids, for example aspartic or glutamic acid, or with organic sulfonic acids, such as (C 1 -C 4 )-alkylsulfonic acids (for example methanesulfonic acid) or arylsulfonic acids which are unsubstituted or
- the compounds, including their salts, can also be obtained in the form of their hydrates, or include other solvents used for their crystallization.
- the compounds of the invention exhibit valuable pharmacological properties in mammals and are particularly useful as inhibitors of cathepsin K.
- cathepsin K inhibitory effects of the compound of the invention can be demonstrated in vitro by measuring the inhibition of e.g. recombinant human cathepsin K.
- the in vitro assay is carried out as follows:
- the assay is performed in 96 well microtiter plates at ambient temperature using recombinant human cathepsin K. Inhibition of cathepsin K is assayed at a constant enzyme (0.16 nM) and substrate concentration (54 mM Z-Phe-Arg-AMCA—Peptide Institute Inc. Osaka, Japan) in 100 mM sodium phosphate buffer, pH 7.0, containing 2 mM dithiothreitol, 20 mM Tween 80 and 1 mM EDTA. Cathepsin K is preincubated with the inhibitors for 30 min, and the reaction is initiated by the addition of substrate.
- Compounds of the Invention typically have IC 50 s for inhibition of human cathepsin K of less than about 100 nM down to about 1 nM or less, preferably of about 5 nM or less, e.g. about 1 nM.
- the compounds of Examples I-22 and I-23 have IC 50 s for inhibition of human cathepsin K of 3 nM and 1.5 nM respectively.
- Compounds of the Invention are particularly useful in mammals as agents for treatment and prophylaxis of diseases and medical conditions involving elevated levels of cathepsin K.
- diseases include diseases involving infection by organisms such as pneumocystis carinii, trypsanoma cruzi, trypsanoma brucei, crithidia fusiculata , as well as parasitic diseases such as schistosomiasis and malaria, tumours (tumour invasion and tumour metastasis), and other diseases such as metachromatic leukodystrophy, muscular dystrophy, amytrophy and similar diseases.
- Cathepsin K has been implicated in diseases of excessive bone loss, and thus the Compounds of the Invention may be used for treatment and prophylaxis of such diseases, including osteoporosis, gingival diseases such as gingivitis and periodontitis, Paget's disease, hypercalcemia of malignancy, e.g. tumour-induced hypercalcemia and metabolic bone disease. Also the Compounds of the Invention may be use for treatment or prophylaxis of diseases of excessive cartilage or matrix degradation, including osteoarthritis and rheumatoid arthritis as well as certain neoplastic diseases involving expression of high levels of proteolytic enzymes and matrix degradation.
- Compounds of the Invention are also indicated for preventing or treating coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabilization), autoimmune diseases, respiratory diseases and immunologically mediated diseases (including transplant rejection).
- Compounds of the Invention are particularly indicated for preventing or treating osteoporosis of various genesis (e.g. juvenile, menopausal, post-menopausal, post-traumatic, caused by old age or by cortico-steroid therapy or inactivity).
- various genesis e.g. juvenile, menopausal, post-menopausal, post-traumatic, caused by old age or by cortico-steroid therapy or inactivity.
- the antiarthritic efficacy of the Compounds of the Invention for the treatment of rheumatoid arthritis can be determined using models such as or similar to the rat model of adjuvant arthritis, as described previously (R. E. Esser, et. al. J. Rheumatology, 1993, 20, 1176.)
- the efficacy of the compounds of the invention for the treatment of osteoarthritis can be determined using models such as or similar to the rabbit partial lateral meniscectomy model, as described previously (Colombo et al. Arth. Rheum. 1993 26, 875-886).
- the efficacy of the compounds in the model can be quantified using histological scoring methods, as described previously (O'Byrne et al. Inflamm Res 1995, 44, S117-S118).
- the efficacy of the compounds of the invention for the treatment of osteoporosis can be determined using an animal model such as the ovariectomised rat or other similar species, e.g. rabbit or monkey, in which test compounds are administered to the animal and the presence of markers of bone resorption are measured in urine or serum (e.g. as described in Osteoporos Int (1997) 7:539-543).
- an animal model such as the ovariectomised rat or other similar species, e.g. rabbit or monkey, in which test compounds are administered to the animal and the presence of markers of bone resorption are measured in urine or serum (e.g. as described in Osteoporos Int (1997) 7:539-543).
- the present invention relates to methods of using Compounds of the Invention and their pharmaceutically acceptable salts, or pharmaceutical compositions thereof, in mammals for inhibiting cathepsin K, and for the treatment of cathepsin K dependent conditions, such as the cathepsin K dependent conditions, described herein, e.g. inflammation, osteoporosis, rheumatoid arthritis and osteoarthritis.
- cathepsin K dependent conditions such as the cathepsin K dependent conditions, described herein, e.g. inflammation, osteoporosis, rheumatoid arthritis and osteoarthritis.
- the present invention relates to a method of selectively inhibiting cathepsin K activity in a mammal which comprises administering to a mammal in need thereof an effective cathepsin K inhibiting amount of a Compound of the Invention.
- Such relates to a method of treating osteoporosis, rheumatoid arthritis, osteoarthritis, and inflammation (and other diseases as identified above) in mammals comprises administering to a mammal in need thereof a correspondingly effective amount of a Compound of the Invention.
- Example I describes the preparation of 2-Cyano-Pyrimidine-5-ylmethyl-amides
- I-13 4-(3- ⁇ [2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]- carbamoyl)-phenyl)- piperazine-1-carboxylic acid tert-butyl ester 508 (300 MHz, CDCl 3 ): 7.91(s, 1H), 7.48(t, 1H), 7.35-7.18(m, 3H), 7.10-7.02(m, 2H), 4.50(d, 2H), 3.55(m, 4H), 3.33(d, 2H), 3.16(m, 4H), 1.48(s, 9H), 0.99(s, 9H).
- I-48 4-(4- ⁇ [N-2-Cyano- 4-isobutylamino- pyrimidin-5- ylmethyl]- carbainoyl)- phenyl)-4- piperazine-1- carboxylic acid text- butyl ester 494 (300 MHz, CDCl 3 ): 7.90(s, 1H), 7.72(t, 1H), 7.70(d, 2H), 6.88(d, 2H), 6.78(t, 1H), 4.48(d, 2H), 3.57(m, 4H), 3.28 (m, 6H), 1.94 (m, 1H), 1.49(s, 9H), 0.95(d, 6H).
- the following amine derivatives are obtained by dissolving(2-Chloro-5-chloromethyl- pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine(1B) and 1 equivalent of DIEA in DMF, cooling to ° C. and adding 1 equivalent of the corresponding amine dropwise at ° C.
- the reaction mixture is stirred at ° C. for 12 h, then diluted with ethyl acetate and extracted once with brine. The organic layer is separated and dried over Na 2 SO 4 .
- the product is purified by flash chromatography.
- I-60 4-(2,2-Dimethyl- propylamino)-5- [(2- ⁇ 3-(4-(2- ethoxy-ethyl)- piperazin-1-yl]- phenyl)-1,1- dimethyl- ethylamino)- methyl]- pyrimidine-2- carbonitrile 508 (300 MHz, CDCl 3 ): 8.00(t, 1H), 7.88(s, 1H), 7.00(d, 2H), 6.83 (d, 2H), 3.72(a, 2H), 3.55(t, 2H), 3.36(q, 2H), 3.27(d, 2H), 3.20 (m, 4H), 2.68-2.60 (m, 8H), 1.18(t, 3H), 1.15(s, 6H), 0.95(s, 9H).
- piperazinyl-benzoic acid precursors used in the preparation of the above compounds may be prepared substantially as described below for the reference 4-[(2-methoxy-ethyl)-piperazin-1-yl]benzoic acid precusor.
- I-86 4-(2,2-Dimethyl- propylamino)-5-[4- (2-pyrrolidin-1-yl- ethyl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 386 (300 MHz, CDCl 3 ): 7.86(s & t, 2H), 3.44 (s, 2H), 3.31(d, 2H), 2.70-2.40(m, 16H), 1.82(m, 4H), 1.00(s, 9H).
- Example II describes the preparation of 5-amido substituted-pyrimidine-2-carbonitriles
- reaction mixture is quenched with cold water and extracted with CH 2 Cl 2 .
- the combined extracts are washed with water, brine, dried over MgSO 4 and concentrated under reduced pressure.
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Abstract
The invention provides compounds of formula I
or a pharmaceutically acceptable salt or ester thereof (I), wherein the symbols have meaning as defined, which are inhibitors of cathepsin K and find use pharmaceutically for treatment of diseases and medical conditions in which cathepsin K is implicated, e.g., various disorders including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis and tumors.
Description
- This invention relates to inhibitors of cysteine proteases, in particular to heteroaryl nitrile cathepsin K inhibitors and to their pharmaceutical use for the treatment or prophylaxis of diseases or medical conditions in which cathepsin K is implicated.
- Cathepsin K is a member of the family of lysosomal cysteine cathepsin enzymes, e.g. cathepsins B, K, L and S, which are implicated in various disorders including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis, tumors (especially tumor invasion and tumor metastasis), coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabilization), autoimmune diseases, respiratory diseases, infectious diseases and immunologically mediated diseases (including transplant rejection).
-
- R is H, —R4, —OR4 or NR3R4,
- wherein R3 is H, lower alkyl or C3 to C10 cycloalkyl, and
- R4 is lower alkyl or C3 to C10 cycloalkyl, and
- wherein R3 and R4 are independently, optionally substituted by halo, hydroxy, lower alkoxy, CN, NO2, or optionally mono- or di-lower alkyl substituted amino;
- R1 is —CO—NR5R6, —NH—CO—R5, —CH2—NH—C(O)—R5, —CO—R5, —S(O)—R5, —S(O)2—R5, —CH2—CO—R5 or —CH2—NR5R6,
wherein - R5 is aryl, aryl-lower alkyl, C3-C10cycloalkyl, C3-C10cycloalkyl-4-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl,
- R6 is H, aryl, aryl-lower alkyl, aryl-lower-alkenyl, C3-C10cycloalkyl, C3-C10cycloalkyl-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl, or
- wherein R5 and R6 together with the nitrogen atom to which they attached are joined to form an N-heterocyclyl group,
- wherein N-heterocyclyl denotes a saturated, partially unsaturated or aromatic nitrogen containing heterocyclic moiety attached via a nitrogen atom thereof having from 3 to 8 ring atoms optionally containing a further 1, 2 or 3 heteroatoms selected from N, NR7, O, S, S(O) or S(O)2 wherein R7 is H or optionally substituted (lower alkyl, carboxy, acyl (including both lower alkyl acyl, e.g. formyl, acetyl or propionyl, or aryl acyl, e.g. benzoyl), amido, aryl, S(O) or S(O)2), and wherein the N-heterocyclyl is optionally fused in a bicyclic structure, e.g. with a benzene or pyridine ring, and wherein the N-heterocyclyl is optionally linked in a spiro structure with a 3 to 8 membered cycloalkyl or heterocyclic ring wherein the heterocyclic ring has from 3 to 10 ring members and contains from 1 to 3 heteroatoms selected from N, NR6, O, S, S(O) or S(O)2 wherein R6 is as defined above), and
- wherein heterocyclyl denotes a ring having from 3 to 10 ring members and containing from 1 to 3 heteroatoms selected from N, NR7, O, S, S(O) or S(O)2 wherein R7 is as defined above), and
- wherein R5 and R6 are independently, optionally substituted by one or more groups, e.g. 1-3 groups, selected from halo, hydroxy, oxo, lower alkoxy, CN or NO2, or optionally substituted (optionally mono- or di-lower alkyl substituted amino, lower-alkoxy, aryl, aryl-lower alkyl, N-heterocyclyl or N-heterocyclyl-lower alkyl (wherein the optional substitution comprises from 1 to 3 substituents selected from halo, hydroxy, lower alkoxy, lower alkoxy-lower alkyl, lower alkoxy-carbonyl, CN, NO2, N-heterocyclyl or N-heterocyclyl-lower alkyl, or optionally mono- or di-lower alkyl substituted amino;
- R2 is is independently H, or optionally substituted (lower alkyl, aryl, aryl-lower alkyl, C3-C10cycloalkyl, C3-C10cycloalkyl-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl), and
- wherein R2 is optionally substituted by halo, hydroxy, oxo, lower alkoxy, CN, NO2, or optionally mono- or di-lower alkyl substituted amino.
- Above and elsewhere in the present description the following terms have the following meanings.
- Halo or halogen denote I, Br, Cl or F.
- The term “lower” referred to above and hereinafter in connection with organic radicals or compounds respectively defines such as branched or unbranched with up to and including 7, preferably up to and including 5 and advantageously one, two or three carbon atoms. A lower alkyl group is branched or unbranched and contains 1 to 7 carbon atoms, preferably 1-5 carbon atoms. Lower alkyl represents; for example, methyl, ethyl, propyl, butyl, isopropyl isobutyl, tertiary butyl or neopentyl (2,2-dimethylpropyl). Halo-substituted lower alkyl is C1-C7lower alkyl substituted by up to 6 halo atoms. A lower alkoxy group is branched or unbranched and contains 1 to 7 carbon atoms, preferably 1-4 carbon atoms. Lower alkoxy represents for example methoxy, ethoxy, propoxy, butoxy, isopropoxy, isobutoxy or tertiary butoxy.
- A lower alkene, alkenyl or alkenyloxy group is branched or unbranched and contains 2 to 7 carbon atoms, preferably 2-4 carbon atoms and contains at least one carbon-carbon double bond. Lower alkene lower alkenyl or lower alkenyloxy represents for example vinyl, prop-1-enyl, allyl, butenyl, isopropenyl or isobutenyl and the oxy equivalents thereof.
- A lower alkyne, alkynyl or alkynyloxy group is branched or unbranched and contains 2 to 7 carbon atoms, preferably 2-4 carbon atoms and contains at least one carbon-carbon triple bond. Lower alkyne or alkynyl represents for example ethynyl, prop-1-ynyl, propargyl, butynyl, isopropynyl or isobutynyl and the oxy equivalents thereof.
- In the present description, oxygen containing substituents, e.g. alkoxy, alkenyloxy, alkynyloxy, carbonyl, etc. encompass their sulphur containing homologues, e.g. thioalkoxy, thioalkenyloxy, thioalkynyloxy, thiocarbonyl, sulphone, sulphoxide etc.
- Aryl represents carbocyclic or heterocyclic aryl.
- Carbocyclic aryl represents monocyclic, bicyclic or tricyclic aryl, for example phenyl or phenyl mono-, di- or tri-substituted by one, two or three radicals selected from lower alkyl, lower alkoxy, aryl, hydroxy, halogen, cyano, trifluoromethyl, lower alkylenedioxy and oxy-C2-C3-alkylene and other substituents, for instance as described in the examples; or 1- or 2-naphthyl; or 1- or 2-phenanthrenyl. Lower alkylenedioxy is a divalent substituent attached to two adjacent carbon atoms of phenyl, e.g. methylenedioxy or ethylenedioxy. Oxy-C2-C3-alkylene is also a divalent substituent attached to two adjacent carbon atoms of phenyl, e.g. oxyethylene or oxypropylene. An example for oxy-C2-C3-alkylene-phenyl is 2,3-dihydrobenzofuran-5-yl.
- Preferred as carbocyclic aryl is naphthyl, phenyl or phenyl optionally substituted, for instance, as described in the examples, e.g. mono- or disubstituted by lower alkoxy, phenyl, halogen, lower alkyl or trifluoromethyl.
- Heterocyclic aryl represents monocyclic or bicyclic heteroaryl, for example pyridyl, indolyl, quinoxalinyl, quinolinyl, isoquinolinyl, benzothienyl, benzofuranyl, benzopyranyl, benzothiopyranyl, furanyl, pyrrolyl, thiazolyl, oxazolyl, isoxazolyl, triazolyl, tetrazolyl, pyrazolyl, imidazolyl, thienyl, or any said radical substituted, especially mono- or di-substituted as defined above.
- Preferably, heterocyclic aryl is pyridyl, indolyl, quinolinyl, pyrrolyl, thiazolyl, isoxazolyl, triazolyl, tetrazolyl, pyrazolyl, imidazolyl, thienyl, or any said radical substituted, especially mono- or di-substituted as defined above.
- Cycloalkyl represents a saturated cyclic hydrocarbon optionally substituted by lower alkyl which contains 3 to 10 ring carbons and is advantageously cyclopropyl, cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl optionally substituted by lower alkyl.
- N-heterocyclyl is as defined above. Preferred N-heterocyclic substituents are optionally substituted pyrrolidine, pyrrole, diazole, triazole, tetrazole, imidazole, oxazole, thiazole, pyridine, pyrimidine, triazine, piperidine, piperazine, morpholine, phthalimde, hydantoin, oxazolidinone or 2,6-dioxo-piperazine and, for example, as hereinafter described in the examples.
-
- R2 is preferably R2′ which is lower alkyl, e.g. straight chain or more preferably branched-chain C1-C6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C3-C6cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5′″ and R6′″ may be such that R5′″ and R6′″ together with the nitrogen atom to which they are joined to form an N-heterocyclyl group
- R5′″ is preferably optionally substituted (aryl-lower-alkyl, heterocyclyl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5′″ is preferably optionally substituted by from 1-4 substituents selected from halo, hydroxy, nitro, cyano, lower-alkyl, lower-alkoxy or lower-alkoxy-lower-akyl.
- For example, R5′″ is 4-methoxy-benzyl, 3-methoxy-benzyl, 4-(4-methyl-piperazin-1-yl)-benzyl, 4-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-benzyl, 1-methyl-1-phenyl-ethyl, 2-(4-methoxy-phenyl)-1,1-dimethyl-ethyl, 2-(4-fluoro-phenyl)-1,1-dimethyl-ethyl, 4-(4-methyl-piperazin-1-yl)-phenyl)-ethyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-1,1-dimethyl-ethyl, 2-{4-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl}-1,1-dimethyl-ethyl, 2-{3-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl}-1,1-dimethyl-ethyl, 2-[3-(4-ethyl-piperazin-1-yl)-phenyl]-1,1-dimethyl-ethyl, 2-[3-(4-isopropyl-piperazin-1-yl)-phenyl]-1,1-dimethyl-ethyl, 1,1-dimethyl-2-(3-pyrrolidin-1-yl-phenyl)-ethyl, 2-{3-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl}-1,1-dimethyl-ethyl, 2-(4-methoxy-phenyl)-ethyl 2-[4-(4-methyl-piperazin-1-yl)-phenyl]-ethyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-ethyl, 2-{4-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl}-ethyl, 2-(3-methoxy-phenyl)-ethyl, 2-[3-(4-methyl-piperazin-1-yl)-phenyl]-ethyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-ethyl, 2-pyrrol-1-yl-ethyl, 3-piperidin-1-yl-propyl 2-(4-methoxy-phenyl)-2-methyl-propyl, 2-methyl-2-[4-(4-methyl-piperazin-1-yl)-phenyl]-propyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-2-methyl-propyl, 2-{4-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl}-2-methyl-propyl, 2-{4-[pyrimidin-1-yl]-phenyl}-2-methyl-propyl, 4-(3-methoxy-phenyl)-piperazin-1-yl-methyl, 4-(4-methoxy-phenyl)-piperazin-1-yl-methyl, 1-methyl-1-(1-phenyl-cyclopropyl)-ethyl,
- For example, R5′″ and R6′″ together with the nitrogen atom to which they are joined to form an N-heterocyclyl group is 4-(2-pyridin-4-yl-ethyl)-piperazin-1-yl, [4-(2-pyridin-2-yl-ethyl)piperazin-1-yl, 4-pyridin-4-ylmethyl-piperazin-1-yl, 4-(2-piperidin-1-yl-ethyl)-piperazin-1-yl, 4-(2-pyrrolidin-1-yl-ethyl)-piperazin-1-yl, 4-(2-Diethylamino-ethyl)-piperazin-1-yl, 4-(3-Diethylamino-propyl)piperazin-1-yl, 4-(1-methyl-piperidin-4-yl)-piperazin-1-yl, 4-pyrrolidin-1-yl-piperidin-1-yl, 4-(2-methoxy-ethyl)-piperazin-1-yl
-
- R2 is preferably R2′ which is lower alkyl, e.g. straight chain or more preferably branched-chain C1-C6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C3-C6cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5′ is preferably optionally substituted (aryl-lower-alkyl, heterocyclyl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5′ is preferably optionally substituted by from 14 substituents selected from halo, hydroxy, nitro, cyano, lower-alkyl, lower-alkoxy, lower-alkoxy-carbonyl or lower-alkoxy-lower-akyl.
- For example, R5′ is 4-methoxy-phenyl, 4-(1-propyl-piperidin-4-yl)-phenyl, 4-(4-methyl-piperazin-1-yl)-phenyl, 4-[1-(2-methoxy-ethyl)-piperidin-4-yl]-phenyl, 4-(4-propyl-piperazin-1-yl)-phenyl, 3-[4-(4-methyl-piperazin-1-yl)-phenyl]-propionyl, 3-[3-(4-methyl-piperazin-1-yl)-phenyl]-propionyl, 4-(4-ethyl-piperazin-1-yl)phenyl, 4-(4-isopropyl-piperazin-1-yl)-phenyl, 4-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl, 4-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl, 4-piperazin-1-yl-phenyl, 4-[4-(carboxylic acid tert-butyl ester) piperazino-1-yl-]-phenyl, 3-[4-(carboxylic acid tert-butyl ester) piperazino-1-yl-]-phenyl, 3-(4-methyl-piperazin-1-yl)-phenyl, 3-(4-ethyl-piperazin-1-yl)-phenyl, 3-(4-isopropyl-piperazin-1-yl)-phenyl, 3-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl, 3-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl, 3-(2-pyrrolidin-1-yl-ethoxy)-phenyl, 3-(2-dimethylamino-ethoxy)-4-methoxy-phenyl, 4-dimethylaminomethyl-phenyl, 4-(4-methyl-piperazin-1-ylmethyl)phenyl, 4-[1-(2-methoxy-ethyl)piperidin-4-ylmethyl]-phenyl, 4-methoxy-3-(2-piperidin-1-yl-ethoxy)-phenyl, 3-[4-(4-ethyl-piperazin-1-yl)-phenyl]-2,2-dimethyl-propionyl, 3-[4-(4-propyl-piperazin-1-yl)-phenyl]-propionyl, 3-(4-pyrrolidin-1-yl-phenyl)-propionyl, 3-[3-(4-ethyl-piperazin-1-yl)-phenyl]-2,2-dimethyl-propionyl, 3-{3-[4-(2-methoxy-ethyl)-piperazin-1-yl]-phenyl}-2,2-dimethyl-propionyl, 3-{3-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl}-2,2-dimethyl-propionyl, 3-(3-pyrrolidin-1-yl-phenyl)-propionyl, 2-[4-(4-methyl-piperazin-1-yl)-phenyl]-isobutyl, 2-(4-methoxy-phenyl)-acetyl, 2-(3-methoxy-phenyl)-acetyl, 2-[4-(4-methyl-piperazin-1-yl)phenyl]-acetyl, 2-[4-(4-ethyl-piperazin-1-yl)-phenyl]-acetyl, 2-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-acetyl, 2-(4-pyrrolidin-1-yl-phenyl)-acetyl, 2-[4-(2-diethylamino-ethylamino)-phenyl]-isobutyl, 2-(4-pyrrolidin-1-yl-phenyl)-isobutyl.
-
- R2 is preferably R2″ which is lower alkyl, e.g. straight chain or more preferably branched-chain C1-C6 alkyl, e.g. especially 2-ethylbutyl, isobutyl, or 2,2-dimethylpropyl; or C3-C6cycloalkyl, especially cyclopropyl, cyclopentyl or cyclohexyl.
- R5″ is preferably optionally substituted (aryl-loweralkyl, aryl-aryl, N-heterocyclyl-aryl or aryl-N-heterocyclyl (where N-heterocyclyl is as defined above).
- R5″ is preferably optionally substituted by from 1-4 substituents selected from halo, hydroxy, nitro, cyano, optionally mono- or di-loweralkyl substituted amino, oxo, lower-alkyl, lower-alkenyl, lower-alkynyl, C3-C10cycloalkyl or C3-C10cycloalkyl-lower-alkyl.
- For example, R5″ is 4-methoxybenzyl, 5-methyl-2-phenyl-2.H.-pyrazol-3-yl, 4-chlorobenzyl, 4-dimethylaminobenzyl, benzyl, 2-phenyl-2.H.-pyrazol-3-yl, 2-phenyl-phenyl, 2-pyrrol-1-yl-phenyl, 2-imidazol-1-yl-phenyl, 5-methyl-2-(4-chlorophenyl)-2.H.-pyrazol-3-yl, 5-methyl-2-(2-chlorophenyl)-2.H.-pyrazol-3-yl and 5-methyl-2-(2,4-dichlorophenyl)-2.H.-pyrazol-3-yl, 2-(4-methoxy-phenyl)-1,1-dimethyl-ethyl, 1,1-dimethyl-2-[3-(4-methyl-piperazin-1-yl)-phenyl]-ethyl, 1,1-dimethyl-2-[4-(4-methyl-piperazin-1-yl)-phenyl]-ethyl, 1,1-dimethyl-2-[3-(2-pyrrolidin-1-yl-ethylamino)-phenyl]-ethyl, 2-{3-[4-(2-ethoxy-ethyl)-piperazin-1-yl]-phenyl}-1,1-dimethyl-ethyl, 2-(4-difluoromethoxy-phenyl)-ethyl, 2-[3-(4-methyl-piperazin-1-yl)-phenyl]-ethyl.
- Particularly preferred compounds of the invention are the compounds of formula II, IIa and III as described in the examples.
-
- The above cyanation reactions may be carried out under various conditions and in the presence of solvents and other reagents as required, including catalysts and co-factors as known in the art and for instance, as hereinafter described in the examples.
- The starting materials may be prepared and the coupled and cyclised products may be converted into other compounds of formula II and salts and esters thereof using methods and procedures known in the art, and as hereinafter described in the examples.
- Accordingly the present invention further provides a process for the preparation of a compound of Formula II or a pharmaceutically acceptable salt or ester thereof
wherein R2 and R5′ are as defined above, comprising cyanation of a 2-chloro precursor of formula IV
wherein R2 and R5′ are as defined above, and thereafter, if desired, converting the product obtained into a further compound of formula II, or into a salt or ester thereof. Compounds of Formula IIa or a pharmaceutically acceptable salt or ester thereof
wherein R2, R5″ and R6′″ are as defined above, comprising cyanation of a 2-chloro precursor of formula IVa
wherein R2, R5″ and R6′″ are as defined above, and thereafter, if desired, converting the product obtained into a further compound of formula IIa, or into a salt or ester thereof. - Compounds of formula III or pharmaceutically acceptable salts or esters thereof
wherein R2 and R5″ are as defined above, may be prepared
either
by cyanation of a 2-chloro precursor of formula V
or
coupling of a carboxylic acid precursor of formula VI with a corresponding amine of formula VII
wherein the R2 and R5″ are as defined above; for instance, substantially as described in the examples. - The above coupling and cyanation reactions may be carried out under various conditions and in the presence of solvents and other reagents as required, including catalysts and co-factors as known in the art and for instance, as hereinafter described in the examples.
- The starting materials may be prepared and the coupled and cyclised products may be converted into other compounds of formula III and salts and esters thereof using methods and procedures known in the art, and as hereinafter described in the examples.
- Accordingly the present invention further provides a process for the preparation of a compound of Formula III or a pharmaceutically acceptable salt or ester thereof
wherein R2 and R3 are as defined above, comprising
either
cyanation of a 2-chloro precursor of formula V
or
coupling of a catboxylic acid precursor of formula VI with a corresponding amine of formula VII
wherein the R2 and R5″ are as defined above, and thereafter, if desired, converting the product obtained into a further compound of formula III, or into a salt or ester thereof. - Compounda of formula I, II and III as defined above and the compounds of the Examples are hereinafter referred to as Compounds of the Invention.
- Compounds of the invention are either obtained in the free form, or as a salt thereof if salt forming groups are present.
- Compounds of the Invention having basic groups can be converted into acid addition salts, especially pharmaceutically acceptable salts. These are formed, for example, with inorganic acids, such as mineral acids, for example sulfuric acid, a phosphoric or hydrohalic acid, or with organic carboxylic acids, such as (C1-C4)alkanecarboxylic acids which, for example, are unsubstituted or substituted by halogen, for example acetic acid, such as saturated or unsaturated dicarboxylic acids, for example oxalic, succinic, maleic or fumaric acid, such as hydroxycarboxylic acids, for example glycolic, lactic, malic, tartaric or citric acid, such as amino acids, for example aspartic or glutamic acid, or with organic sulfonic acids, such as (C1-C4)-alkylsulfonic acids (for example methanesulfonic acid) or arylsulfonic acids which are unsubstituted or substituted (for example by halogen). Preferred are salts formed with hydrochloric acid, methanesulfonic acid and maleic acid.
- In view of the close relationship between the free compounds and the compounds in the form of their salts, whenever a compound is referred to in this context, a corresponding salt is also intended, provided such is possible or appropriate under the circumstances.
- The compounds, including their salts, can also be obtained in the form of their hydrates, or include other solvents used for their crystallization.
- The compounds of the invention exhibit valuable pharmacological properties in mammals and are particularly useful as inhibitors of cathepsin K.
- The cathepsin K inhibitory effects of the compound of the invention can be demonstrated in vitro by measuring the inhibition of e.g. recombinant human cathepsin K.
- The in vitro assay is carried out as follows:
- For cathepsin K:
- The assay is performed in 96 well microtiter plates at ambient temperature using recombinant human cathepsin K. Inhibition of cathepsin K is assayed at a constant enzyme (0.16 nM) and substrate concentration (54 mM Z-Phe-Arg-AMCA—Peptide Institute Inc. Osaka, Japan) in 100 mM sodium phosphate buffer, pH 7.0, containing 2 mM dithiothreitol, 20 mM Tween 80 and 1 mM EDTA. Cathepsin K is preincubated with the inhibitors for 30 min, and the reaction is initiated by the addition of substrate. After 30 min incubation the reaction is stopped by the addition of E-64 (2 mM), and fluorescence intensity is read on a multi-well plate reader at excitation and emission wavelengths of 360 and 460 nm, respectively. Compounds of the Invention typically have IC50s for inhibition of human cathepsin K of less than about 100 nM down to about 1 nM or less, preferably of about 5 nM or less, e.g. about 1 nM. Thus for example, the compounds of Examples I-22 and I-23 have IC50s for inhibition of human cathepsin K of 3 nM and 1.5 nM respectively.
- In view of their activity as inhibitors of cathepsin K, Compounds of the Invention are particularly useful in mammals as agents for treatment and prophylaxis of diseases and medical conditions involving elevated levels of cathepsin K. Such diseases include diseases involving infection by organisms such as pneumocystis carinii, trypsanoma cruzi, trypsanoma brucei, crithidia fusiculata, as well as parasitic diseases such as schistosomiasis and malaria, tumours (tumour invasion and tumour metastasis), and other diseases such as metachromatic leukodystrophy, muscular dystrophy, amytrophy and similar diseases.
- Cathepsin K, has been implicated in diseases of excessive bone loss, and thus the Compounds of the Invention may be used for treatment and prophylaxis of such diseases, including osteoporosis, gingival diseases such as gingivitis and periodontitis, Paget's disease, hypercalcemia of malignancy, e.g. tumour-induced hypercalcemia and metabolic bone disease. Also the Compounds of the Invention may be use for treatment or prophylaxis of diseases of excessive cartilage or matrix degradation, including osteoarthritis and rheumatoid arthritis as well as certain neoplastic diseases involving expression of high levels of proteolytic enzymes and matrix degradation.
- Compounds of the Invention, are also indicated for preventing or treating coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabilization), autoimmune diseases, respiratory diseases and immunologically mediated diseases (including transplant rejection).
- Compounds of the Invention are particularly indicated for preventing or treating osteoporosis of various genesis (e.g. juvenile, menopausal, post-menopausal, post-traumatic, caused by old age or by cortico-steroid therapy or inactivity).
- Beneficial effects are evaluated in in vitro and in vivo pharmacological tests generally known in the art, and as illustrated herein.
- The above cited properties are demonstrable in in vitro and in vivo tests, using advantageously mammals, e.g. rats, mice, dogs, rabbits, monkeys or isolated organs and tissues, as well as mammalian enzyme preparations, either natural or prepared by e.g. recombinant technology. Compounds of the Invention can be applied in vitro in the form of solutions, e.g. preferably aqueous solutions or suspensions, and in vivo either enterally or parenterally, advantageously orally, e.g. as a suspension or in aqueous solution, or as a solid capsule or tablet formulation. The dosage in vitro may range between about 10−5 molar and 10−9 molar concentrations. The dosage in vivo may range, depending on the route of administration, between about 0.1 and 100 mg/kg.
- The antiarthritic efficacy of the Compounds of the Invention for the treatment of rheumatoid arthritis can be determined using models such as or similar to the rat model of adjuvant arthritis, as described previously (R. E. Esser, et. al. J. Rheumatology, 1993, 20, 1176.)
- The efficacy of the compounds of the invention for the treatment of osteoarthritis can be determined using models such as or similar to the rabbit partial lateral meniscectomy model, as described previously (Colombo et al. Arth. Rheum. 1993 26, 875-886). The efficacy of the compounds in the model can be quantified using histological scoring methods, as described previously (O'Byrne et al. Inflamm Res 1995, 44, S117-S118).
- The efficacy of the compounds of the invention for the treatment of osteoporosis can be determined using an animal model such as the ovariectomised rat or other similar species, e.g. rabbit or monkey, in which test compounds are administered to the animal and the presence of markers of bone resorption are measured in urine or serum (e.g. as described in Osteoporos Int (1997) 7:539-543).
- Accordingly in further aspects the invention provides:
- A Compound of the Invention for use as a pharmaceutical;
- a pharmaceutical composition comprising a Compound of the Invention as an active ingredient;
- a method of treating a patient suffering from or susceptible to a disease or medical condition in which cathepsin K is implicated, comprising administering an effective amount of a Compound of the Invention to the patient, and
- the use of a Compound of the Invention for the preparation of a medicament for therapeutic or prophylactic treatment of a disease or medical condition in which cathepsin K is implicated.
- The present invention relates to methods of using Compounds of the Invention and their pharmaceutically acceptable salts, or pharmaceutical compositions thereof, in mammals for inhibiting cathepsin K, and for the treatment of cathepsin K dependent conditions, such as the cathepsin K dependent conditions, described herein, e.g. inflammation, osteoporosis, rheumatoid arthritis and osteoarthritis.
- Particularly the present invention relates to a method of selectively inhibiting cathepsin K activity in a mammal which comprises administering to a mammal in need thereof an effective cathepsin K inhibiting amount of a Compound of the Invention.
- More specifically such relates to a method of treating osteoporosis, rheumatoid arthritis, osteoarthritis, and inflammation (and other diseases as identified above) in mammals comprises administering to a mammal in need thereof a correspondingly effective amount of a Compound of the Invention.
- The following examples are intended to illustrate the invention and are not to be construed as being limitations thereon. Temperatures are given in degrees Centigrade. If not mentioned otherwise, all evaporations are performed under reduced pressure, preferably between about 15 and 100 mm Hg (=20-133 mbar). The structure of final products, intermediates and starting materials is confirmed by standard analytical methods, e.g. microanalysis and spectroscopic characteristics (e.g. MS, IR, NMR). Abbreviations used are those conventional in the art.
- Example I describes the preparation of 2-Cyano-Pyrimidine-5-ylmethyl-amides
-
-
- To 50 ml of POCl3 is added 21.5 g (103.5 mmol) of PCl5 and 4.0 g (27.6 mmol) of 5-(hydroxymethyl)-uracil. The resulting reaction mixture is stirred at 115° C. for 15 h. The reaction mixture is then cooled to r.t. and distilled, to yield 2,4-dichloro-5-choromethyl-pyrimidine as a colourless liquid, boiling point 74° C. (0.01 mbar).
- 1H-NMR (300 MHz, CDCl3): 8.64 (s, 1H), 4.62 (s, 2H).
-
- A solution of 3.47 g (17.57 mmol) of 2,4-dichloro-5-choromethyl-pyrimidine and 2.9 ml (21.08 mmol) triethylamine in 29 ml of THF is cooled to −5° C. and 2.2 ml (17.57 mmol) 2,2-dimethyl-propylamin is added over a period of 15 minutes. The reaction mixture is stirred at −5° C. for additional 2 h, then diluted with ethyl acetate and extracted once with brine. The organic layer is separated and dried over Na2SO4. Purification of the crude product by flash chromatography (hexanes/ethyl acetate) yields (2-chloro-5-chloromethyl-pyrimidin-4-yl)(2,2-dimethyl-propyl)-amine as white crystalls.
- MS (ES+): 249 (M+H)+
- 1H-NMR (300 MHz, CDCl3): 7.94 (s, 1H), 5.4 (m (broad), 1H), 4.47 (s, 2H), 3.4 (d, 2H), 1.02 (s, 9H).
-
- A solution of 1.47 g (5.92 mmol) of (2-chloro-5-chloromethyl-pyrimidinyl)-(2,2-dimethyl-propyl)-amine and 0.46 g (7.1 mmol) NaN3 is dissolved in 6 ml of DMF and was stirred at 30° C. for 2.5 hours. Then the reaction mixture is cooled to r.t., diluted with ethyl acetate and twice extracted with H2O. The organic layer is separated and dried over Na2SO4. Evaporation of the ethyl acetate yielded (5-azidomethyl-2-chloro-pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine as white crystalls.
- Mp.: 133-136° C.
- MS (ES+): 255 (M+H)+
- 1H-NMR (300 MHz, CDCl3): 7.92 (s, 1H), 5.49 (t (broad), 1H), 4.2 (s, 2H), 3.37 (d, 2H), 1 (s, 9H).
-
- A solution of 1.47 g (15.77 mmol) (5-azidomethyl-2-chloro-pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine and 1.67 g (6.35 mmol) of triphenylphosphine in 20 ml of THF and 0.08 ml of H2O is stirred at r.t. for 24 h. Then the solvent is removed and the residue dissolved in 40 ml EtOH and 17 ml NH3 (25%). This reaction mixture is stirred for 48 h at r.t. and again the solvent is removed. The residue is dissolved in diethylether and twice extracted with 25 ml of 1N HCl. Both acidic extracts were combined and once more extracted with diethylether, then the acidic layer is evaporated under vacuo. The solid residue was triturated with diethylether yielding (5-Aminomethyl-2-chloro-pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine 2HCl as slightly yellow crystalls.
- MS (ES+): 229 (M+H)+
- 1H-NMR (300 MHz, CD3OD): 8.27 (s, 1H), 4.19 (s, 2H), 3.57 (s, 2H), 1.01 (s, 9H).
-
- To a solution of 0.089 g (0.38 mmol) of (5-aminomethyl-2-chloro-pyrimidin-4-yl)(2,2-dimethyl-propyl)-amine and 0.27 ml (1.6 mmol) DIEA in 2.5 ml of DMF 0.063 g (0.38 mmol) of (4-methoxy-phenyl)-acetic acid is added and the reaction mixture is stirred at r.t for 16 h. The reaction mixture is then diluted with ethyl acetate and twice washed with H2O, the organic layer is separated and dried over Na2SO4 and then concentrated under reduced pressure. Flash chromatography (ethyl acetate/hexanes 1:1) of the residue provided N-[2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidin-5-ylmethyl]-2-(4-methoxy-phenyl)acetamide as white crystalls.
- MS (ES+): 377 (M+H)+
- 1H-NMR (300 MHz, CDCl3): 7.55 (s, 1H), 7.11 (m, 3H), 6.85 (d, 2H), 6.22 (t, 1H), 4.2 (d, 2H), 3.79 (s, 3H), 3.53 (s, 2H), 3.3 (d, 2H), 0.98 (s, 9H).
-
- A solution of 0.036 g (0.096 mmol) of N-[2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidin-5-ylmethyl]-2-(4-methoxy-phenyl)acetamide, 0.013 g (0.192 mmol) of KCN and 0.011 g (0.096 mmol) of 1.4-diazabicyclo[2.2.2]octan in 1 ml of DMSO/H2O (85:15) is stirred for 45 minutes at 60° C. The reaction mixture is cooled to r.t. and subjected to preparative HPLC. N-[2-cyano-4-(2,2-dimethyl-propylamino)-pyrimidin-5-ylmethyl]-2-(4-methoxy-phenyl)-acetamide is obtained as a white solid.
- MS (ES+): 368 (M+H)+
- 1H-NMR (300 MHz, CDCl3): 7.81 (s, 1H), 7.28 (t, 2H), 7.13 (d, 2H), 6.88 (d, 2H), 5.85 (t, 1H), 4.25 (d, 2H), 3.8 (s, 3H), 3.54 (s, 2H, 3.32 (d, 2H), 1.0 (s, 9H).
- By repeating the procedure described above in example 1, using the appropraite starting materials and conditions the following compounds of formula 2-7 are obtained as identified below in table.
MS (ES+) Ex. R (M + H)+ 1H-NMR I-1 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- (1-propyl-piperidin-4-yl)- benzamide 449 (300 MHz, CDCl3): 7.95(s, 1H), 7.72(d, 2H), 7.5(t, 1H), 7.32(d, 2H), 6.8(t, 1H), 4.51(d, 2H), 3.32(d, 2H), 3.08(d, 2H), 2.58(m, 1H), 2.39(m, 2H), 2.08(m, 2H), 1.82 (m, 4H), 1.59(q, 2H), 0.98 (s, 9H), 0.91(t, 3H). I-2 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylnethyl]-4- (4-inethyl-piperazin-1-yl)- benzamide 422 (300 MHz, CDCl3): 7.9(s, 1H), 7.69(d, 2H), 7.6(t, 1H), 6.89(d, 2H), 6.68(t, 1H), 4.5(d, 2H), 3.33(m, 6H), 2.59(m, 4H), 2.38(s, 3H), 0.99(s, 9H). I-3 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- [1-(2-inethoxy-ethyl)- piperidin-4-yl]-benzamide 465 (300 MHz, CDCl3): 7.94(s, 1H), 7.72(d, 2H), 7.5(t, 1H), 7.29(d, 2H), 6.8(t, 1H), 4.52(d, 2H), 3.55(t, 2H), 3.38(s, 3H), 3.36(d, 2H), 3.13(m, 2H), 2.65(t, 2H), 2.6(t, 3H), 2.17(m, 2H), 1.82(m, 4H), 0.99(s, 9H). I-4 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- (4-propyl-piperazin-1-yl)- benzamide 450 (300 MHz, CDCl3): 7.9(s, 1H), 7.69(d, 2H), 7.6(t, 1H), 6.87(d, 2H), 6.59(t, 1H), 4.5(d, 2H), 3.34(m, 6H), 2.6(m, 4H), 2.35(t, 2H), 2.45(m, 2H), 0.99(s, 9H), 0.98(t, 3H). I-5 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2,2- diinethyl-3-[4-(4-methyl- piperazin-1-yl)-phenyl]- propionamide 478 (300 MHz, CDCl3): 7.72(s, 1H), 7.62(t, 1H), 6.88(d, 2H), 6.69(d, 2H), 5.8(m, 1H), 4.19(d, 2H), 3.38(d, 2H), 3.18(m, 4H), 2.71(s, 2H), 2.65(m, 4H), 2.39(s, 3H), 1.1(s, 6H), 1.01(s, 9H). I-6 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2,2- dimethyl-3-[3-(4-methyl- piperazin-1-yl)-phenyl]- propionamide 478 (300 MHz, CDCl3): 7.8(s, 1H), 7.51(t, 1H), 7.04(t, 1H), 6.69(d, 1H), 6.61(s, 1H), 6.52(d, 1H), 5.85(m, 1H), 4.19(d, 2H), 3.35(d, 2H), 3.19(m, 4H), 2.79(s, 2H), 2.63(m, 4H), 2.4(s, 3H), 1.1(s, 6H), 1.01(s, 9H). I-7 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- (4-ethyl-piperazin-1-yl)- benzamide 436 (300 MHz, CDCl3): 7.92(s, 1H), 7.68(d, 2H), 7.58(t, 1H), 6.86(d, 2H), 6.56(t, 1H), 4.49(d, 2H), 3.32(m, 6H), 2.60(mm, 6H)2.4(q, 2H) 1.12(t, 3H), 0.98(s, 9H). I-8 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- (4-isopropyl-piperazin-1- yl)-benzamide 450 (300 MHz, CDCl3): 7.92(s, 1H), 7.65(d, 2H), 7.54(t, 1H), 6.88(d, 2H), 6,46(t, 1H), 4.51(d, 2H), 3.32(m, 6H), 2.74(m, 1H), 2.68(m, 4H), 1.10(d, 6H), 0.98(s, 9H). I-9 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylnietbyl]-4- [4-(2-ethoxy-ethyl)- piperazin-1-yl]-benzamide 479 (400 MHz, CDCl3): 7.91(s, 1H), 7.59(d, 2H), 7.45(t, 1H), 6.79(d, 2H), 6.37(t, 1H), 4.45(d, 2H), 3.52(t, 2H), 3.47(q, 2H), 3.28(m, 6H), 2.58(m, 4H), 1.16(q, 3H), 0.98(s, 9H). I-10 N-(2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- [4-(2-methoxy-ethyl)- piperazin-1-yl]-benzainide 466 (300 MHz, CDCl3): 7.93(s, 1H), 7.68(d, 2H), 7.59(t, 1H), 6.87(d, 2H), 6.52(t, 1H), 4.50(d, 2H), 3.55(t, 2H), 3.38(s, 3H), 3.33(m, 6H), 2.63(m, 6H), 0.98(s, 9H). I-11 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- piperazin-1-yl-benzamide 408 (400 MHz, CDCl3): 7.87(s, 1H), 7.61(d, 2H), 7.50(t, 1H), 6.80(d, 2N), 6.48(t, 1H), 4.44(d, 2H), 3.27(d, 2H), 3.20(m, 4N), 2.95(m, 4H), 0.90(s, 9H). I-12 4-(4-{(2-Cyan-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]- carbamoyl}-phenyl)- piperazine-1-carboxylic acid tert-butyl ester 508 (300 MHz, CDCl3): 7.95(s, 1H)7.68(d, 2H), 7.54(t, 1H), 6.88(d, 2H), 6.44(t, 1H), 4.52(d, 2H), 3.56(m, 4H), 3.36(d, 2H), 3.0(m, 4H), 1.48(s, 9H), 0.98(s, 9H). I-13 4-(3-{[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]- carbamoyl)-phenyl)- piperazine-1-carboxylic acid tert-butyl ester 508 (300 MHz, CDCl3): 7.91(s, 1H), 7.48(t, 1H), 7.35-7.18(m, 3H), 7.10-7.02(m, 2H), 4.50(d, 2H), 3.55(m, 4H), 3.33(d, 2H), 3.16(m, 4H), 1.48(s, 9H), 0.99(s, 9H). I-14 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- (4-methyl-piperazin-1-yl)- benzamide 422 (400 MHz, CDCl3): 7.78(s, 1H), 7.49(s, 1H), 7.31-7.07(m, 3H), 6.72( 2t(broad), 2H), 4.45(d, 2H), 3.30(m, 6H), 2.65 (m, 4H), 2.42(s, 3H), 0.98 (s, 9H). I-15 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- (4-ethyl-piperazin-1-yl)- benzamide 436 (400 MHz, CDCl3): 7.74(s, 1H), 7.49(s, 1H), 7.32-7.07(m, 3H), 6.72( 2t(broad), 2H), 4.42(d, 2H), 3.30(m, 6H), 2.65 (m, 4H), 2.52(q, 2H), 1.18(t, 3H), 0.97(s, 9H). I-16 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- (4-isopropyl-piperazin-1- yl)-benzainide 450 (300 MHz, CDCl3): 7.91(s, 1H), 7.44(t, 1H, J=5 Hz), 7.34-7.24(m, 3H), 7.11(d, 1H, J=7 Hz), 7.05(d, 1H, J=7 Hz), 6.83(t, 1H, J=6 Hz), 4.50( d, 2H, 16 Hz), 3.32(d, 2H, J=5 Hz), 3.25(m, 4H), 2.72(m, 1H), 2.68(m, 4H), 7.09( d, 6H, J=8 Hz), 0.98(s, 9H). I-17 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- [4-(2-methoxy-ethyl)- piperazin-1-yl]-benzamide 466 (300 MHz, CDCl3): 7.94(s, 1H), 7.42(t, 1H), 7.32-7.26(m, 2H), 7.12-7.04(m, 2H), 6.67(t, 1H), 4.52(d, 2H), 3.55(t, 2H), 3.37(s, 3H), 3.35(d 2H), 3.26(m, 4H), 2.68-2.61 (m, 6H), 0.98(s, 9H). I-18 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- [4-(2-ethoxy-ethyl)- piperazin-1-yl]-benzamide 479 (300MHZ, CDCl3): 7 .92(s, 1H), 7.45(t, 1H), 7.36-7.26(m, 2H), 7.14-7.02(m, 2H), 6.75(t, 1H), 4.52(d, 2H), 3.62(t, 2H), 3.55(q, 2H), 3.34(d, 2H), 3.23(m, 4H), 2.68-2.60 (m, 6H), 1.22(t, 3H), 0.99 (s, 9H). I-19 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- methoxy-3-(2-pyrrolidin- 1-yl-ethoxy)-benzamide 467 (300 MHz, CDCl3): 7.89(s, 1H), 7.55(t, 1H), 7.44-7.35(m, 2H), 7.0( t, 1H), 6.87(d, 1H), 4.50 (d, 2H), 4.20(t, 2H), 3.89 (s, 3H), 3.34(d, 2H), 2.94 (t, 2H), 2.62(m, 4H), 0.99 (s, 9H). I-20 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- (2-dimethylamino-ethoxy)- 4-methoxy-benzamide 441 (300 MHz, CDCl3): 7.92(s, 1H), 7.56(t, 1H), 7.42-7.35(m, 2H), 6.82 (d, 1H), 6.81(t, 1H), 4.52 (d, 2H), 4.18(t, 2H), 3.90 (s, 3H), 3.35(d, 2H), 2.80 (t, 2H), 2.37(s, 6H), 0.98 (s, 9H). I-21 N-{2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- dimethylaminomethyl- benzamide 381 (300 MHz, CDCl3): 7.91(s, 1H), 7.72(d, 2H, J=8 Hz), 7.46(t, 1H, J=5 Hz), 7.39(d, 2H, J=8 Hz), 6.79(t, 1H, J=7 Hz), 4.52(d, 2H, J=7 Hz), 3.46(s, 2H), 3.35(d, 2H, J=5), 2.23(s, 6H), 0.99 (s, 9H). I-22 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- (4-methyl-piperazin-1-ylmethyl)-benzamide 436 (300 MHz, CDCl3): 7.91(s, 1H), 7.72(d, 2H,J=8 Hz), 7.44(t, 1H, J=5 Hz), 7.21(d, 2H, J=8 Hz), 6.87(t, 1H, J=7 Hz), 4.52(d, 2H, J=7 Hz), 3.54(s, 2H); 3.35(d, 2H, J=5 Hz), 2.49(m, broad, 8H), 1.0(s, 9H). I-23 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- [1-(2-methoxy-ethyl)- piperidin-4-ylmethyl]- benzamide 479 (300 MHz, CDCl3): 7.89(s, 1H), 7.70(d, 2H), 7.53(t, 1H), 7.20(d, 2H), 6.88(t, 1H), 4.50(d, 2H), 3.48(t, 2H), 3.35(d, 2H), 3.33(s, 3H), 2.90(m, 2H), 2.60-2.50(,m, 4H), 1.90 (m, 2H), 1.60-1.28(M, 5H), 0.99(s, 9H). I-24 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-4- methoxy-3-(2-piperidin-1- yl-ethoxy)-benzamide 481 (300 MHz, CDCl3): 7.92(s, 1H), 7.56(t, 1H, J=6 Hz), 7.42-7.33(m, 2H), 6.88(d, 1H), 6.87(t, 1H),4.50(d, 2H, J=7 Hz), 4.20(t, 2H, J=7 Hz), 3.90(s, 3H), 3.36(d, 2H, J=6 Hz), 2.81((t, 2H, J=7 Hz), 2.51(m,4H), 1.60 (m, 4H), 1.45(m, 2H), 0.98(s, 9H). I-25 N-[2-Cyano-4-(2,2- dimethyl-propylamino)-pyrimidin-5-ylmethyl]-3-[4-(4-ethyl-piperazin-1-yl)-phenyl]-2,2-dimethyl- propionamide 492 (300 MHz, CDCl3): 7.66(t, 1H), 7.62(s, 1H), 6.88(d, 2H), 6.67(d, 2H), 5.94(t, 1H), 4.18(d, 2H), 3.36(d, 2H), 3.14(m, 4H), 2.71(s, 2H), 2.60(m, 4H), 2.47(q, 2H), 1.19(s, 6H), 1.14(t, 3H), 1.02(s, 9H). I-26 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2,2- dimethyl-3-[4-(4-propyl- piperazin-1-yl)-phenyl]- propionamide 506 (300 MHz, CDCl3): 7.68(s, 1H), 7.64(t, 1H), 6.89(d, 2H), 6.67(d, 2H), 5.89(t, 1H), 4.18(d, 2H), 3.36(d, 2H), 3.15(m, 4H), 2.72(s, 2H), 2.62(m, 4H), 2.37(m, 2H), 1.57(q, 2H), 1.20(s, 6H), 1.02(s, 9H). I-27 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2,2- dimethyl-3-(4-pyrrolidin- 1-yl-phenyl)-propionamide 449 (300 MHz, CDCl3): 7.69(s, 1H), 7.63(t, 1H), 6.84(d, 2H), 6.37(d, 2H), 5.84(t, 1H), 4.18 Cd, 2H), 3.37(d, 2H), 3.24(m, 4H), 2.69(s, 2H), 2.03(m, 4H), 1.18(s, 6H), 1.02(s, 9H). I-28 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- [3-(4-ethyl-piperazin-1-yl)- phenyl]-2,2-dmmethyl- propionamide 492 (300 MHz, CDCl3): 7.78(s, 1H), 7.49(1, 1H), 7.04(1, 1H), 6.78(m, 1H), 6.62(m, 1H), 6.50(m, 1H), 5.82(1, 1H), 4.18(d, 2H), 3.34(d, 2H), 3.16(m, 4H), 2.79(s, 2H), 2.61(m, 4H), 2.48(q, 4H), 1.20(s, 6H), 1.13(1,3H), 1.02(s, 9H). I-29 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- {3-[4-(2-methoxy-ethyl)- piperazin-1-yl]-phenyl}- 2,2-dimethyl- propionamide 522 (300 MHz, CDCl3): 7.80(s, 1H), 7.50(t, 1H), 7.05(t, 1H), 6.78(m, 1H), 6.62(m, 1H), 6.50(m, 1H), 5.80(t, 1H), 4.18(d, 2H), 3.55(t,2H), 3.37(s, 3H), 3.35(d, 2H), 3.18(m, 4H), 2.79(s, 2H), 2.66(m, 4H), 1.20(s, 6H), 1.02(s, 9H). I-30 N-[2-Gyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-3- {3-[4-(2-ethoxy-ethyl)- piperazin-1-yl]-phenyl}- 2,2-dimethyl- propionamide 536 (300 MHz, CDCl3): 7.79(s, 1H), 7.50(t, 1H), 7.05(t, 1H), 6.78(m, 1H), 6.60(m, 1H), 6.49(m, 1H), 5.82(t, 1H), 4.17(d, 2H), 3.60(t,2H), 3.53(q, 2H), 3.36(d, 2H), 3.18(m, 4H), 2.79(s, 2H), 2.68(m, 4H), 1.25(q, 3H), 1.20(s, 6H), 1.02(s, 9H). I-31 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2,2- dimethyl-3-(3-pyrrolidin- 1-yl-phenyl)-propionamide 449 (300 MHz, CDCl3): 7.79(s, 1H), 7.54(t, 1H), 7.0(t, 1H), 6.42(m, 1H), 6.34(m, 1H), 6.28(m, 1H), 5.84(t, 1H), 4.18(d, 2H), 3.34(d, 2H), 322(m, 4H), 2.79(s, 2H), 2.0(m, 4H), 1.22(s, 6H), 1.02(s, 9H). I-32 N-[2-Cyano-4-(2,2- pyrimidin-5-ylmethyl]-2- dimethyl-propylamino)- [4-(4-methyl-piperazin-1- yl)-phenyl]-isobutyramide 464 (300 MHz, CDCl3): 7.76(s, 1H) 7.22(t, 1H), 7.15(d, 2H), 6.87(d, 2H), 5.61(t, 1H),4.18(d, 2H), 3.24(d, 2H) 3.22(m, 4H), 2.58(m, 4H), 2.34(s, 3H), 1.53(s, 6H), 1.01(s, 9H). I-33 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- (4-methoxy-phenyl)-acetamide 368 (300 MHz, CDCl3): 7.81(s, 1H), 7.25(t, 1H), 7.13(d, 2H), 6.88(d, 2H), 5.85(t, 1H), 4.25(d, 2H), 3.81(s, 3H), 3.33(d, 2H), 0.99(s, 9H). I-34 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- (3-methoxy-phenyl)-acetamide 368 (300 MHz, CDCl3): 7.82(s, 1H), 7.25(m, 2H), 6.87-6.74(m, 3H), 5.88 (t, 1H), 4.25(d, 2H), 3.81 (s, 3H), 3.33(d, 2H), 0.99 (s, 9H). I-35 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- [4-(4-methyl-piperazin-1- yl)-phenyl]-acetamide 436 (300 MHz, CDCl3): 7.80(s, 1H), 7.27(t, 1H), 7.06(d, 2H), 6.89(d, 2H), 5.82(t, 1H), 4.24(d, 2H), 3.54(s, 2H), 3.33(d, 2H), 3.22(m, 4H), 2.60(m, 4H), 2.46(q, 2H),1.04(t, 3H), 1.0(a, 9H). I-36 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrhnidin-5-ylmethyl]-2- [4-(4-ethyl-piperazin-1-yl)- phenyl]-acetamide 450 (300 MHz, CDCl3): 7.80(s, 1H), 7.27(t, 1H), 7.06(d, 2H), 6.89(d, 2H), 5.84(t, 1H), 4.22(d, 2H), 3.54(s, 2H), 3.34(d, 2H), 3.20(m, 4H), 2.58(m, 4H), 2.36(s, 3H), 1.0(s, 9H). I-37 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- [4-(4-isopropyl-piperazin- 1-yl)-phenyl]-acetamide 464 (300 MHz, CDCl3): 7.80(s, 1H), 7.27(t, 1H), 7.06(d, 2H), 6.89(d, 2H), 5.83(t, 1H), 4.22(d, 2H), 3.54(s, 2H), 3.34(d, 2H), 3.21(m, 4H), 2.72(m,1H), 2.67(m, 4H), 1.11(d,6H), 0.98(s, 9H). I-38 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- (4-pyrrolidin-1-yl-phenyl)- acetamide 407 (300 MHz, CDCl3): 7.79(s 1H), 7.33(t, 1H), 7.02(d, 2H), 6.51(d, 2H), 5.85(t, 1H), 4.22(d, 2H), 3.50(s, 2H), 3.34(d, 2H), 3.26(m, 4H), 2.03(m, 4H), 1.0(s, 9H). I-39 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- [4-(2-diethylamino- ethylamino)-phenyl]- isobutyramide 480 (300 MHz, CDCl3): 7.76(s, 1H), 7.34(t, 1H), 7.07(d, 2H), 6.58(d, 2H), 5.68(t, 1H), 4.48(t, broad, 1H), 4.18(d, 2H), 3.35(d, 2H), 3.10(t, 2H), 2.68(t, 2H), 2.54(q, 4H), 1.52(s, 6H), 1.03(m, 15H). I-40 N-[2-Cyano-4-(2,2- dimethyl-propylamino)- pyrimidin-5-ylmethyl]-2- (4-pyrrolidin-1-yl-phenyl)- isobutyramide 435 (300 MHz, CDCl3): 7.75(s, 1H), 7.36(t, 1H), 7.12(d, 2H), 6.52(d, 2H), 5.66(t, 1H), 4.18(d, 2H), 3.34(s, 2H), 3.26(m, 4H), 2.00(m, 4H), 1.52(s, 6H), 1.0(s, 9H). I-41 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(4- methyl-piperazin-1- yl)-benzamide 408 (300 MHz, CDCl3): 7.96(s, 1H), 7.70(t, 1H), 7.67(d, 2H), 6.89(d, 2H), 6.41(t, 1H), 4.50(d, 2H), 3.39-3.28(m, 6H), 2.56(m, 4H), 2.36 (s, 3H), 1.94(m, 1H), 0.94(d, 6H). I-42 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(4- ethyl-piperazin-1- yl)-benzamide 422 (300 MHz, CDCl3): 7.90(s, 1H), 7.71(t, 1H), 7.67(d, 2H), 6.88(d, H), 6.52(t, 1H), 4.48(d, 2H), 3.38 .3.28(m, 6H), 2.59(m, 4H), 2.48 (q, 2H), 1.94(m, 1H), 1.13(t, 3H), 0.94(d, 6H). I-43 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(4- isopropyl-piperazin- 1-yl)-benzamide 436 (300 MHz, CDCl3): 7.89(s, 1H), 7.80(t, 1H), 7.68(d, 2H), 6.88(d, 2H), 6.73(t, 1H), 4.48(d, 2H), 3.36-3.25(m, 6H), 2.74(m, 1H), 2.66 (m,4H), 1.94(m, 0.94(d, 6H). I-44 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(4- propyl-piperazin-1- yl)-benzamide 436 (300 MHz, CDCl3): 7.90(s, 1H), 7.74(t, 1H), 7.68(d, 2H), 6.88(d, 2H), 6.57(t, 1H), 4.48(d, 2H), 3.36-3.26(m, 6H), 2.59(m, 4H), 2.35 (m, 2H), 1.95(m, 0.94(d & t, 9H). I-45 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-[4-(2- methoxy-ethyl)- piperazin-1-yl]- beuzamide 452 (300MHz, CDCl3): 7.90(s, 1H), 7.74(t, 1H), 7.68(d, 2H), 6.88(d, 2H), 6.56(t, 1H), 4.49(d, 2H), 3.55(t, 2H), 3.38(s, 3H), 3.36-3.28(m, 6H), 2.64(m, 6H), 1.95(m, 1H), 0.93 (d, 6H) I-46 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(1- propyl-piperidin-4- yl)-benzamide 435 (300 MHz, CDCl3): 7.91(s, 1H), 7.72 (d, 2H), 7.61(t, 1H), 7.30(d, 2H), 6.69(t, 1H), 4.51(d, 2H), 3.30(t, 2H), 3.08(d, broad, 2H), 2.56 (m, 1H), 2.35(m, 2H), 2.05(m, 2H), 1.94(m,1H), 1.87-1.70(m, 4H), 1.56 (m, 2H), 0.95(d, 6H), 0.94(t, 3H). I-47 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-[1-(2- methoxy-ethyl)- piperidin-4-yl]- benzamide 451 (300 MHz, CDCl3): 7.92(s, 1H), 7.70 (d, 2H), 7.63(t, 1H), 7.32(d, 2H), 6.73(t, 1H), 4.5(d, 2H), 3.54(t, 2H), 3.37(s, 3H), 3.30(t, 3H), 3.10(d, 2H), 2.62(t, 2H), 2.53(m, 1H), 2.13(m, 2H), 1.94 (m, 1H), 1.88-1.62 (m, 5H), 0.95(d, 6H). I-48 4-(4-{[N-2-Cyano- 4-isobutylamino- pyrimidin-5- ylmethyl]- carbainoyl)- phenyl)-4- piperazine-1- carboxylic acid text- butyl ester 494 (300 MHz, CDCl3): 7.90(s, 1H), 7.72(t, 1H), 7.70(d, 2H), 6.88(d, 2H), 6.78(t, 1H), 4.48(d, 2H), 3.57(m, 4H), 3.28 (m, 6H), 1.94 (m, 1H), 1.49(s, 9H), 0.95(d, 6H). I-49 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4- piperazin-1-yl- benzamide 394 (300 MHz, CDCl3): 7.90(s, 1H), 7.72(t, 1H), 7.68(d, 2H), 6.88(d, 2H), 6.64(t, 1H), 4.48(d, 2H), 3.32-3.27(m, 6H), 3.02(m,4H), 1.95 (m, 1H), 0.95(d, 6H). The following amine derivatives are obtained by dissolving(2-Chloro-5-chloromethyl- pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine(1B) and 1 equivalent of DIEA in DMF, cooling to ° C. and adding 1 equivalent of the corresponding amine dropwise at ° C. The reaction mixture is stirred at ° C. for 12 h, then diluted with ethyl acetate and extracted once with brine. The organic layer is separated and dried over Na2SO4. The product is purified by flash chromatography. I-50 4-(2,2-Dimethyl- propylamino)-5- [(4-methoxy- beuzylamino)- methyl]- pyrimidme-2- carbonitrile 340 (300 MHz, CDCl3): 8.00(t, 1H), 7.84(s, 1H), 7.14(d, 2H), 6.86 (d, 2H), 3.80(s, 3H), 3.70(d, 2H), 3.30(d, 2H), 0.97(s, 9H). I-51 4-(2,2-Dimethyl- propylamino)-5- [(3-methoxy- beuzylamino)- methyl]- pyrimidme-2- carbonitrile 340 (300 MHz, CDCI3): 7.94(t, 1H), 7.85(s, 1H), 7.24(m, 1H), 6.84 7.77(m, 3H), 3.80(s, 3H), 3.74(d, 2H), 3.32 (d, 2H), 0.98(s, 9H). I-52 4-(2,2-Dimethyl- propylamino)-5- {[4-(4-methyl- piperazin-1-yl)- benzylamino]- methyl}- pyrimidme-2- carbonitrile 408 (300 MHz, CDCl3): 8.04(t, 1H), 7.82(s, 1H), 7.12(d, 2H), 6.89 (d, 2H), 3.74(s, 2H), 3.65(s, 2H), 3.31(d, 2H), 3.22(m, 4H), 2.60 (m, 4H), 2.37(s, 3H), 0.97(s, 9H). I-53 4-(2,2-Dimethyl- propylamino)-5- ({4-[4-(2-ethoxy- ethyl)-piperazin-1- yl]-benzylamino)- methyl)- pyrimidine-2- carbonitrile 466 (300 MHz, CDCl3): 8.03(t, 1H), 7.82(s, 1H), 7.13(d, 2K), 6.89 (d, 2K), 3.73(s, 2H), 3.65(s, 2H), 3.61(t, 2H), 3.54(q, 2H), 3.31 (d, 2H), 3.22(m, 4H), 2.70-2.64(m, 6H), 1.33(t, 3H), 0.97(s, 9H). I-54 4-(2,2-Dimethyl- propylamino)-5- [(1-methyl-1- phenyl- ethylamino)- methyl]- pyrimidine-2- carbonitrile 338 (300 MHz,CDCl3): 7.88(s.1H), 7.80(t, 1H), 7.37(m, 5H),(s, 1H), 7.29(t, 1H), 3.41 (s, 2H), 3.34(d, 2H), 1.55(s, 6H), 1.01(s, 9H). I-55 4-(2,2-Dimethyl- propylamino)-5- {[2-(4-methoxy- phenyl)-1,1- dimethyl- ethylamino]- methyl)- pyrimidine-2- carbonitrile 382 (300 MHz, CDCl3): 7.95(t, 1H), 7.88 (s.1H), 7.03(d, 2H), 6.83(d, 2H), 3.80(s, 3H), 3.74(s, 2H), 3.27 (d, 2H), 2.70(s, 2H), 1.15(s, 6H), 0.95(s, 9H). I-56 4-(2,2-Dimethyl- propylamino)-5- ([2-(4-fluoro- phenyl)-1,1- dimethyl- ethylamino)- methyl)- pyrinuidine-2- carbonitrile 370 (300 MHz, CDCl3): 7.90(s, 1H), 7.85(t, 1H), 7.10-6.94(m, 4H), 3.75(s, 2H), 3.28 (d, 2H), 2.74(s, 2H), 1.17(s, 6H), 0.95(s, 9H). I-57 5-({1,1-Dimethyl- 2-[4-(4-methyl- piperazin-1-yl)- phenyl]- ethylaminol- methyl)-4-(2,2- dimethyl- propylammo)- pyrimidine-2- carbonitrile 450 (300 MHz, CDCl3): 8.00(t, 1H), 7.87(s, 1H), 7.00(d, 2H), 6.85 (d, 2H), 3.74(s, 2H), 3.26(d, 2H), 3.18(m, 4H), 2.62(s, 3H), 2.58 (m, 4H), 2.35(s, 2H), 1.14(s, 6H),0.95(s, 9H). I-58 4-(2,2-Dimethyl- propylamino)-5- ({2-[4-(4- isopropyl- piperazin-1-yl)- phenyl]-1,1- dimethyl- ethylamino)- methyl)- pyrimidine-2- carbonitrile 478 (300 MHz, CDCl3): 8.00(t, 1H), 7.87(s, 1H), 6.99(d, 2H), 6.84 (d, 2H), 3.74(d, 2H), 3.27(d, 2H), 3.18(m, 4H), 2.70(m, 1H), 2.68 (m, 6H), 1.15(s, 6H), 1.10(d, 6H), 0.95(s, 9H). I-59 4-(2,2-Dimethyl- propylamino)-5- [(2-{4-[4-(2- methoxy-ethyl)- piperazin-1-yl]- phenyl}-1,1- dimethyl- ethylamino)- methyl]- pyrimidine-2- carbonitrile 494 (300 MHz, CDCl3): 8.00(t, 1H), 7.88(s, 1H), 7.00(d, 2H), 6.83 (d, 2H), 3.72(s, 2H), 3.55(t, 2H), 3.37(s, 3H), 3.27(d, 2H), 3.20 (m, 4H), 2.68-2.60 (m, 8H), 1.15(a, 6H), 0.95(a, 9H). I-60 4-(2,2-Dimethyl- propylamino)-5- [(2-{3-(4-(2- ethoxy-ethyl)- piperazin-1-yl]- phenyl)-1,1- dimethyl- ethylamino)- methyl]- pyrimidine-2- carbonitrile 508 (300 MHz, CDCl3): 8.00(t, 1H), 7.88(s, 1H), 7.00(d, 2H), 6.83 (d, 2H), 3.72(a, 2H), 3.55(t, 2H), 3.36(q, 2H), 3.27(d, 2H), 3.20 (m, 4H), 2.68-2.60 (m, 8H), 1.18(t, 3H), 1.15(s, 6H), 0.95(s, 9H). I-61 4-(2,2-Dimethyl- propylamino)-5- ({2-[3-(4-ethyl- piperazin-1-yl)- phenyl]-1,1- dimethyl- ethylamino}- methyl)- pyrimidine-2- carbonitrile 464 (300 MHz, CDCl3): 8.00(t, 1H), 7.88(s, 1H), 7.16(m, 1H), 6.81(m, 1H), 6.63-6.60(m, 2H), 3.74(d, 2H), 3.27(d, 2H), 3.17 (m, 4H), 2.71(s, 3H), 2.59(m, 4H), 2.48(q, 2H), 1.17(s, 6H), 1.14 (t, 3H), 0.95(s, 9H). I-62 4-(2,2-Dimethyl- propylamino)-5- ({2-[3-(4- isopropyl- piperazin-1-yl)- phenyl]-1,1- dimethyl- ethylamino}- methyl)- pyrimidine-2- carbonitrile 478 (300 MHz, CDCl3): 8.00(t, 1H), 7.88(s, 1H), 7.16(m, 1H), 6.83(m, 1H), 6.63-6.58(m, 2H), 3.75(s, 2H), 3.27(d, 2H), 3.17 (m, 4H), 2.73-2.64 (m, 7H), 1.17(s, 6H), 1.10(d, 6H), 0.95(s, 9H). I-63 4-(2,2-Dimethyl- propylamino)-5- {[1,1-dimethyl-2- (3-pyrrolidin-1-yl- phenyl)- ethylamino]- methyl)- pyrimidine-2- carbonitrile 421 (300 MHz, CDCl3): 8.08(t, 1H), 7.88(s, 1H), 7.12(m, 1H), 6.43-6.38(m, 2H), 6.26(s, 1H), 3.76(s, 2H), 3.27-3.20(m, 6H), 2.72(s, 2H), 2.00 (m, 4H), 1.18(s, 6H), 0.95(s, 9H). I-64 4-(2,2-Dimethyl- propylamino)-5- [(2-{3-[4-(2- methoxy-ethyl)- piperazin-1-yl]- phenyl)-1,1- dimethyl- ethylamino)- methyl)- pyrimidine-2- carbonitrile 494 (300 MHz, CDCl3): 8.00(t, 1H), 7.88(s, 1H), 7.16(m, 1H), 6.80(m, 1H), 6.63-6.58(m, 2H), 3.75(s, 2H), 3.55(t, 2H), 3.37 (s, 3H), 3.27(d, 2H), 3.18(m, 4H), 2.72(s, 2H), 2.68-2.60(m, 6H), 1.17(s, 6H), 0.95 (s, 9H). I-65 4-(2,2-Dimethyl- propylamino)-5- {2-(4-methoxy- phenyl)- ethylamino]- methyl)- pyrimidine-2- carbonitrile 354 (300 MHz, CDCl3): 8.05(t, 1H), 7.84(s, 1H), 7.06(d, 2H), 6.84 (d, 2H), 3.80(s, 3H), 3.75(s, 2H), 3.25(d, 2H), 2.77(m 4H), 0.97 (s, 9H). I-66 4-(2,2-Dimethyl- propylamino)-5- ({2-[4-(4-methyl- piperazin-1-yl)- phenyl]- ethylamino)- methyl)- pyrimidine-2- carbonitrile 422 (300 MHz, CDCl3): 8.10(t, 1H), 7.84(s, 1H), 7.05(d, 2H), 6.89 (d, 2H), 3.73(s, 2H), 3.26(d, 2H), 3.18(m, 4H), 2.83-2.70(m, 4H), 2.50(m, 4H), 2.36 (s, 3H), 0.99(s, 9H). I-67 4-(2,2-Dimethyl- propylamino)-5- ({2-[4-(4- isopropyl- piperazin-1-yl)- phenyl]- ethylamino}- methyl)- pyiimidine-2- carbonitrile 450 (300 MHz CDCl3): 8.10(t, 1H), 7.82(s, 1H), 7.04(d, 2H), 6.89 (d, 2H), 3.73(s, 2H), (d, 2H), 3.18(m, 4H), 2.84-2.68(m, 7H), 1.12(d, 6H), 0.99 (s, 9H). I-68 4-(2,2-Dimethyl- propylamino)-5- [(2-{4-[4-(2- methoxy-ethyl)- piperazin-1-yl]- phenyl)- ethylamino)- methyl]pyrimidine-2- carbonitrile 466 (300 MHz, CDCl3): 8.10(t, 1H), 7.82(s, 1H), 7.04(d, 2H), 6.86 (d, 2H), 3.75(s, 2H), 3.38(s, 3H), 3.30-3.19(m, 6H), 2.82-2.60(m, 11H), 0.96(s, 9H). I-69 4-(2,2-Dimethyl- propylamino)-5- {[2-(3-methoxy- phenyl)- ethylamino]- methyl)- pyrimidine-2- carbonitrile 354 (300 MHz, CDCl3): 8.03(t, 1H), 7.82(s, 1H), 7.20(m, 1H), 6.80-6.70(m, 3H), 3.80(s, 3H), 3.75(s, 2H), 3.26 (d, 2H), 2.80(m, 4H), 0.96(s, 9H). I-70 4-(2,2-Dimethyl- propylamino)-5- ({2-[3-(4-methyl- piperazin-1-yl)- phenyl]- ethylamino)}- methyl)- pyimidine-2- carbonitrile 422 (300 MHz, CDCl3): 8.07(t, 1H), 7.82(s, 1H), 7.18(m, 1H), 6.80-6.20(m, 3H), 3.75(s, 2H), 3.28(d, 2H), 3.22 (m, 4H), 2.80(m, 4H), 2.60(m, 4H), 2.37(s, 3H), 0.97(s, 9H). I-71 4-(2,2-Dimethyl- propylamino)-5- ({2-[4-(4- isopropyl- piperazin-1-yl)- phenyl]- ethylamino}- methyl)- pyrimidine-2- carbonitrile 450 (300 MHz, CDCl3): 8.07(t, 1H), 7.85(s, 1H), 7.19(m, 1H), 6.82-6.65(m, 3H), 3.75(s, 2H), 3.29(d, 2H), 3.22 (m, 4H), 2.86-2.70 (m, 6H), 1.13(d, 6H), 0.99(s, 9H). I-72 4-(2,2-Dimethyl- propylamino)-5- [(2-pyrrol-1-yl- ethylamino)- methyl]- pyrimidine-2- carbonitrile 313 (300 MHz, CDCl3): 7.82(s, 1H), 7.72(t, 1H), 6.3(m, 2H), 6.17 (m, 2H), 4.02(t, 2H), 3.72(s, 2H), 3.30(d, 2H), 2.91(m, 2H), 0.99 (s, 9H). I-73 4-(2,2-Dimethyl- propylamino)-5- [(3-piperidin-1-yl- propylamino)- methyl]- pyrimidine-2- carbonitrile 345 (300 MHz, CDCl3): 7.92(s, 1H), 7.80(t, 1H), 3.75(s, 2H), 3.30 (s, 2H), 2.94-2.59(m, 8H), 2.06-1.82(m, 6H), 1.60(m, 2H), 0.994(s, (H). I-74 4-(2,2-Dimethyl- propylamino)-5- {[2-(4-methoxy- phenyl)-2-methyl- propylamino]- methyl}- carbonitrile 382 (300 MHz, CDCl3): 7.81(s, 1H), 7.77(t, 1H), 7.21(d, 2H), 6.85 (d, 2H), 3.80(s, 3H),3.63(s, 2H), 3.23 (d, 2H), 2.65(s, 2H), 1.30(s, 6H), 0.92(s, 9H). I-75 4-(2,2-Dimethyl- propylamino)-5- ({2-methyl-2-[4- (4-methyl- piperazin-1-yl)- phenyl]- propylamino}- methyl)- pyrimidine-2- carbonitrile 450 (300 MHz, CDCl3): 7.84(t, 1H), 7.81(s, 1H), 7.18(d, 2H), 6.88 (d, 2H), 3.63(s, 2H), 3.28-3.21(m,6H), 2.63(s, 2H), 2.60(m, 4H), 2.37(s, 3H). 1.30 (s, 6H), 0.94(s, 9H). I-76 4-(2,2-Dimethyl- propylamino)-5- ({2-[4-(4- isopropyl- piperazin-1-yl)- phenyl-2-methyl- propylamino}- methyl)- pyrimidine-2- carbonitrile 478 (300 MHz, CDCl3): 7.85(t, 1H), 7.80(s, 1H), 7.19(d, 2H), 6.88 (d, 2H), 3.63(s, 2H), 3.26-3.18(m, 6H), 2.75-2.60(m, 7H), 1.30(s, 6H), 1.11(d, 6H), 0.94(s, 9H). I-77 4-(2,2-Dimethyl- propylamino)-5- [(2-{4-[4-(2- ethoxy-ethyl)- piperazin-l-yl]- phenyl}-2-methyl- propylamino)- methyl]- pyrimidine-2- carbonitrile 508 (300 MHz, CDCl3): 7.84(t, 1H), 7.80(s, 1H), 7.19(d, 2H), 6.87 (d, 2H), 3.63-3.59(m, 4H), 3.53(q, 2H), 3.26 3.18(m, 6H), 2.70-2.60(m, 8H), 1.30(s, 6H), 1.23(t, 6H), 0.94 (s, 9H). I-78 N-(2-Cyano-4- isobutylamino- pyrimidin-5- ylmethyl)-4-(4- isopropyl- piperazin-1-yl)- benzamide 435 (300 MHz, CDCl3): 7.87(t, 1H), 7.80(s, 1H), 7.19(d, 2H), 6.88 (d, 2H), 3.61(s, 2H),2.35(d, 2H), 3.14 (m, 4H), 2.63(s, 2H), 1.72(m, 4H), 1.58(m, 2H), 1.30(s, 6H), 0.94 (s, 9H). I-79 4-(2,2-Dimethyl- propylamino)-5-[4- (3-methoxy- pbenyl)-piperazin- 1-ylmethyl]- pyiimidine-2- carbonitrile 395 (300 MHz, CDCl3): 7.93(s, 1H), 7.81(t, 1H), 7.19(m, 1H), 6.56 6.43 m, 3H), 3.79(s, 3H), 3.51(s, 2H), 3.32 (d, 2H), 3.19(m, 4H), 2.62(m, 4H), 0.98(s, 9H). I-80 4-(2,2-Dimethyl- propylamino)-5-[4- (4-methoxy-phenyl)-piperazin- 1-ylmethyl]- pyimidine-2- carbonitrile 395 (300 MHz, CDCl3): 7.93(s, 1H), 7.85(t, 1H), 6.88(2d, 4H), 3.79(s, 3H), 3.51(s, 2H), 3.32(d, 2H), 3.10 (m, 4H), 2.62(m, 4H), 0.98(s, 9H). I-81 4-(2,2-Dimethyl- propylamino)-5- {[1-methyl-1-(1- phenyl- cyclopropyl)- ethylamino]- methyl}- pyrimidine-2- carbonitrile 378 (300 MHz, CDCl3): 7.91(s, 1H), 7.80(s, 1H), 7.34-7.21(m, 5H), 3.83(s, 2H)3.19 (d,2H), 1.11(s, 6H) 0.96(q, 2H), 0.86(s, 9H), 0.77(d, 2H). -
- To 10 ml of 1,4-dioxan is added 0.645 g (3.0 mmol) of methyl-4-bromobenzoate 0.519 g (3.6 mmol) of 1-(2-methoxy-ethyl-piperazine, 0.892 g (8.47 mmol) of potassium phosphate, 0.177 g (0.45 mmol) of 2-dicycohexylphosphino-2′-(N,N-dimethyl-amino)biphenyl and 0.137 g (0.15 mmol) tris-(benzylideneacetone)palladium (0). The resulting reaction mixture is stirred under argon for 5 hours at 100° C., then cooled to room temperature, diluted with ethyl acetate and filtered. The filtrate is washed once with H2O and once with brine, the organic layer separated and dried over Na2SO4. Purification of the crude product by flash chromatography (dichloromethane/methanol) yields 0.52 g of 4-[4-(2-methoxy-ethyl)-piperazin-1-yl)]benzoic acid methyl ester as a solid.
- MS (ES+): 279 (M+H)+
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- To 4 ml of MeOH/H2O (1:1) is added 0.52 g (1.87 mmol) of 4-[4-(2-methoxy-ethyl)-piperazin-1-yl]benzoic acid methyl ester and 0.078 g (1.96 mmol) of NaOH (30%). The resulting reaction mixture is stirred 1 hour at 80° C., then cooled to room temperature and diluted with H2O. The H2O-layer is extracted 3 times with diethyl ether and then lyophilised to yield 0.47 g of 4-[4-(2-methoxy-ethyl)-piperazin-1-yl)-benzoic acid sodium salt as a white solid.
- MS (ES+): 265 (M+H)+
- 1H-NMR (300 MHz, CD3OD): 7.97 (d, 2H), 7.04 (d, 2H), 3.72 (t, 2H), 3.50 (s, 3H), 3.42 (m, 4H), 2.82 (m, 6H).
MS (ES+) Ex. R (M + H)+ 1H-NMR I-82 4-(2,2-Dimethyl- propylamino)-5-[4- (2-pyridin-4-yl- ethyl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 394 (300 MHz, CDCl3): 8.50(d, 2H), 7.89(s, 1H), 7.83(t, 1H), 7.13 (d, 2H), 3.45(s, 2H), 3.31(d, 2H), 2.78(m, 2H), 2.65-2.40(m, 10H), 0.99(s, 9H). I-83 4-(2,2-Dimethyl- propylamino)-5-[4- (2-pyridin-2-yl- ethyl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 394 (300 MHz, CDCl3): 8.50(d, 1H), 7.88(s t, 2H), 7.59(t, 1H), 7.19-7.10(m, 2H), 3.45(s, 2H), 3.31(d, 2H), 2.95(m, 2H), 2.78 (m, 2H), 2.60-2.41 (m, broad, 8H), 0.99(s, 9H). I-84 4-(2,2-Dimethyl- propylamino)-5-(4- pyridin-4-ylmethyl- piperazin-1- ylmethyl)- pyrimidine-2- carbonitrile 380 (300 MHz, CDCl3): 8.53(d, 2H), 7.89 s, 1H), 7.84(t, 1H), 7.27 (d, 2H), 3.52(s, 2H), 3.46(s, 2H), 3.30(d, 2H), 2.60-2.40(m, broad, 8H), 0.99(s, 9H). I-85 4-(2,2-Dimethyl- propylamino)-5-[4- (2-piperidin-1-yl- ethyl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 400 (300 MHz, CDCl3): 7.85(s & t, 2H), 3.44 (s, 2H), 3.30(d, 2H), 2.60-2.38(m, 16H), 1.60(m, 4H), 1.45(m, 2H), 0.99(s, 9H). I-86 4-(2,2-Dimethyl- propylamino)-5-[4- (2-pyrrolidin-1-yl- ethyl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 386 (300 MHz, CDCl3): 7.86(s & t, 2H), 3.44 (s, 2H), 3.31(d, 2H), 2.70-2.40(m, 16H), 1.82(m, 4H), 1.00(s, 9H). I-87 Diethylamino- ethyl)-piperazin-1- ylmethyl]-4-(2,2- dimethyl- propylamino)- pyrimidine-2- carbonitrile 388 (300 MHz, CDCl3): 7.89(s & t, 2H), 3.44 (s, 2H), 3.31(d,2H), 2.64-2.42(m, 16H), 1.06(t,6H), 1.00(s, 9H). I-88 Diethylamino- propyl)-piperazin-1- ylmethyl]-4-(2,2- dimethyl- propylamnino)- pyrimidine-2- carbonitrile 402 (300 MHz, CDCl3): 7.89(s & t, 2H), 3.44 (s, 2H), 3.30(d, 2H), 2.60-2.32(m, 16H), 1.67(m, 2H), 1.06(t, 6H), 1.00(s, 9H). I-89 4-(2,2-Dimethyl- propylamino)-5-[4- (1-methyl-piperidin- 4-yl)-piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 386 (300 MHz, CDCl3): 7.92(t, 1H), 7.89(s, 1H), 3.44(s, 2H), 3.29 (d, 2H), 2.95(d, broad, 2H), 2.64-2.41(m, broad, 8H), 2.29(s, 3H), 2.25(m, 2H), 2.20 1.59(m, 5H), 0.99(s, 9H). I-90 4-(2,2-Dimethyl- propylamino)-5-(4- pyrrolidin-1-yl- piperidin-1- ylmethyl)- pyrimidine-2- carbonitrile 357 (300 MHz, CDCl3): 7.96(t, 1H), 7.85(s, 1H), 3.44(s, 2H), 3.29 (d, 2H), 2.85(d, broad, 2H), 2.60(m, broad, 4H), 2.05(m, 3H), 1.99-1.50(m, 8H), 0.98(s, 9H). I-91 4-(2,2-Dimethyl- propylamino)-5-[4- (2-methoxy-ethyl)- piperazin-1- ylmethyl]- pyrimidine-2- carbonitrile 347 (300 MHz, CDCl3): 7.87(s & t, 2H), 3.50 (t, 2H), 3.45(s, 2H), 3.34(s, 3H), 3.30(d, 2H), 2.62-2.48(m, broad, 10H), 1.00(s, 9H). - Example II describes the preparation of 5-amido substituted-pyrimidine-2-carbonitriles
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- To a solution of (5-bromo-2-chloro-pyrimidin-4-yl)-(2,2-dimethyl-propyl)-amine (30 g, 108 mmol) in THF (500 ml) is added n-butyllithium (1.6 mol/l in n-hexane, 148 ml, 237 mmol) dropwise at −78° C. and the mixture is stirred for 10 min. Ethylformate (19 ml, 230 mol) is added dropwise to the mixture at −78° C., and the reaction mixture is allowed to warm to ambient temperature. After being stirred for 1 hour, the reaction mixture is quenched with saturated NH4Cl at −78° C. and then extracted with AcOEt. The combined extracts are washed with water, brine, dried over MgSO4 and concentrated under reduced pressure. The residue is purified by silica gel column chromatography (eluent:n-hexane:AcOEt=4:1) give 2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carbaldehyde. Rf=0.56 (n-hexane:AcOEt=1:1). 1H NMR (400 MHz, DMSO-d6) δ 1.00 (s, 9H), 3.41 (d, 2H), 8.40 (s, 1H), 8.88 (brs, 1H), 9.84 (s, 1H).
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- To a solution of 2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carbaldehyde (1.2 g, 5.27 mmol) in THF (20 ml) is added sulfamic acid (0.819 g, 8.4 mmol) at ambient temperature. To the mixture, sodium chlorite (1.43 g, 15.8 mmol) in water (10 ml) is added dropwise at 0° C. and the reaction mixture is allowed to warm to ambient temperature. After being stirred for 30 min. at ambient temperature, the reaction mixture is diluted with water and extracted with CH2Cl2. The combined extracts are washed with water, brine, dried over MgSO4 and concentrated under reduced pressure to afford crude acid (1.17 g). To a solution of the crude acid (0.5 g, 2.05 mmol) in CH2Cl2 (10 ml) are added oxalyl chloride (0.36 ml, 4.1 mmol) and catalytic amount of DMF successively at 0° C., and the mixture is allowed to warm to ambient temperature. After being stirred for 1 hour at ambient temperature, the mixture is transferred to a solution of p-methoxybenzylamine (2.25 g, 16.7 mmol) in THF (30 ml) at −10° C.-−20° C. and the reaction mixture is stirred for 1 hour. The reaction mixture is quenched with cold water and extracted with CH2Cl2. The combined extracts are washed with water, brine, dried over MgSO4 and concentrated under reduced pressure. The residue is purified by silica gel column chromatography (eluent:n-hexane:AcOEt=2:1) give 2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carboxylic acid 4-methoxy-benzylamide. Rf=0.38 (n-hexane:AcOEt=2:1). 1H NMR (400 MHz, DMSO-d6) δ 1.01 (s, 9H), 3.35 (d, 2H), 3.81 (s, 3H), 4.52 (d, 2H), 6.23 (brs, 1H), 6.90 (d, 2H), 7.25 (d, 2H), 8.15 (s, 1H), 9.09 (brs, 1H).
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- To a solution of NaCN (95 mg, 1.9 mmol) in water (1 ml) and DMSO (10 ml) are added 1,4-diazabicyclo[2,2,2]octane (48 mg, 0.43 mmol) and 2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carboxylic acid 4-methoxy-benzylamide (470 mg, 1.3 mmol) in DMSO (2 ml) successively at ambient temperature. After being stirred for 2 hours at 50° C., the reaction mixture is poured into cold water and extracted with AcOEt. The combined extracts are washed with water, brine and dried over MgSO4. The concentrated residue is purified by silica gel column chromatography (eluent:n-hexane:AcOEt=2:1) give 2-cyano-4-(2,2-dimethyl-propylamino)pyrimidine-5-carboxylic acid 4-methoxy-benzylamide. Rf=0.45 (n-hexane:AcOEt=2:1). 1H NMR (400 MHz, DMSO-d4) δ 1.00 (s, 9H), 3.37 (d, 2H), 3.81 (s, 3H), 4.53 (d, 2H), 6.36 (brs, 1H), 6.89 (d, 2H), 7.25 (d, 2H), 8.28 (s, 1H), 9.08 (brs, 1H).
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- To a solution of 2,4-Dichloro-pyrimidine-5-carboxylic acid (1.04 g, 5.39 mmol) and triethylamine (1.65 ml, 11.9 mmol) in DMSO (10 ml) is added neopentylamine (0.517 g, 5.93 mmol) at ambient temperature under N2 atmosphere. After being stirred at 80° C. for 3 hours, the reaction mixture is diluted with cold water (50 ml) and 1 N aqueous hydrochloric acid (7.0 ml), and extracted with CH2Cl2. The extract is washed with brine, dried over MgSO4 and concentrated under reduced pressure to give the crude product. Rf=0.27 (AcOEt:MeOH=10:1). 1H NMR(400 MHz, DMSO-d6) δ 0.93(s, 9H), 3.31(d, 2H), 8.58(s, 1H), 8.77(br, 1H).
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- To a solution of NaCN (332 mg, 6.78 mmol) in water (2 ml) and DMSO (8 ml) are added 1,4-diazabicyclo[2,2,2]octane (658 mg, 5.87 mmol) and 2-chloro-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carboxylic acid (1.10 g, 4.52 mmol) successively at ambient temperature. After being stirred for 1 hours at 70° C., the reaction mixture is diluted with cold water (50 ml) and 1 N aqueous hydrochloric acid (11.7 ml), and extracted with CH2Cl2. The extract is washed with brine, dried over MgSO4 and concentrated under reduced pressure to give the crude product. Rf=0.22 (AcOEt:MeOH=10:1). 1H NMR(400 MHz, DMSO-4) δ 0.94(s, 9H), 3.34(d, 2H), 8.73(s, 1H), 8.94(br, 1H).
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- To a solution of 2-Cyano-4-(2,2-dimethyl-propylamino)-pyrimidine-5-carboxylic acid (150 mg, 0.640 mmol), 5-Methyl-2-phenyl-2H-pyrazol-3-ylamine (211 mg, 1.28 mmol) and 1-hydroxybenzotriazole(147 mg, 1.28 mmol) in DMF (5 ml) is added 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (199 mg, 1.28 mmol) at ambient temperature. After being stirred for 15 hours at ambient temperature, the reaction mixture is diluted with ethyl acetate, washed with saturated NaHCO3, dried over MgSO4 and concentrated. The crude product is purified by reverse-phase HPLC to give the product. Rf=0.44 (n-hexane: AcOEt=1:1). 1H NMR(400 MHz, CDCl3) δ 0.98(s, 9H), 2.33(s, 3H), 3.37(d, 2H), 6.55(s, 1H), 7.41-7.53(m, 5H), 8.24(s, 1H), 9.01(br, 1H).
- By repeating the procedures described above using appropriate starting materials and conditions the following compounds of formula XI are obtained as identified below in Table 2.
TABLE 2 XI Example No. Yield (%) Rf(solvent) 1H NMR(400 MHz, δ) II-3 56 0.63 (n-hexane:AcOEt = 1:1) (CDCl3) 1.00(s, 9H), 3.37(d, 2H), 4.57(d, 2H), 6.61(br, 1H), 7.27(d, 2H), 7.33(d, 2H), 8.32(s, 1H), 9.05(br, 1H) II-4 47 0.54 (n-hexane:AcOEt = 1:1) (CDCl3) 1.00(s, 9H), 2.95(s, 6H), 3.36(d, 2H), 4.47(d, 2H), 6.37(br, 1H), 6.70(d, 2H), 7.19(d, 2H), 8.25(s, 1H), 9.11(br, 1H) II-5 27 0.64 (n-hexane:AcOEt = 1:1) (CDCl3) 1.00(s, 9H), 3.38(d, 2H), 4.61(d, 2H), 6.38(br, 1H), 7.32-7.38(m, 5H), 8.30(s, 1H), 9.07(br, 1H) II-2 34 0.44 (n-hexane:AcOEt = 1:1) (CDCl3) 0.98(s, 9H), 2.33(s, 3H), 3.37(d, 2H), 6.55(s, 1H), 7.41-7.53(m,5H), 8.24(s, 1H), 9.01(br, 1H) II-6 27 0.40 (n-hexane:AcOEt = 1:1) (CDCl3) 0.99(s, 9H), 3.39(d, 2H), 6.77(d, 1H), 7.47-7.58(m, 5H), 7.68(d, 1H), 8.24(s, 1H), 8.97(br, 1H) II-7 26 0.73 (n-hexane:AcOEt = 1:1) (CDCl3) 1.00(s, 9H), 3.38(d, 2H), 7.28-7.54(m, 8H), 7.86(brs, 1H), 7.91(s, 1H), 8.31(d, 1H), 9.05(br, 1H) II-8 22 0.67 (n-hexane:AcOEt = 1:1) (CDCl3) 1.00(s, 9H), 3.38(d, 2H), 6.47-6.49(m, 2H), 6.81-6.82(m, 2H), 7.26-7.29(m, 1H), 7.40-7.43(m, 1H), 7.45-7.49(m, 1H), 7.59(brs, 8.42(d, 1H), 9.05(br, 1H) II-9 22 0.46 (n-bexane:AcOEt = 1:1) (CDCl3) 0.97(s, 9H), 2.32(s, 3H), 3.37(d, 2H), 6.46(s, 1H), 7.38(d, 2H), 7.44(d, 2H), 8.32(s, 1H), 8.93(br, 1H) II-10 23 0.37 (n-hexane:AcOEt = 1:1) (CDCl3) 0.98(s, 9H), 2.31(s, 3H), 3.37(d, 2H), 6.48(s, 1H), 7.30-7.42(m, 3H), 7.49(m, 1H), 8.31(s, 1H), 8.91(br, 1H) II-11 10 0.50 (n-hexane:AcOEt = 1:1) (CDCl3) 0.97(s, 9H), 2.34(s, 3H), 3.35(d, 2H), 6.48(s, 1H), 7.38-7.45(m, 2H), 7.56(m, 1H), 7.83(br, 1H), 8.27(s, 1H), 8.81(br, 1H). MS (ES+) Ex. R (M + H)+ 1H-NMR II-12 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid[2-(4-methoxy- phenyl)-1,1-dimethyl-ethyl]-amide 396 (300 MHz, CDCl3): 8.92(t, 1H), 8.21(s, 1H), 7.03(d, 2H), 6.82(d, 2H), 5.67(s, 1H), 3.79(s, 3H), 3.38(d, 2H), 3.22 (s, 2H), 1.45(s, 6H), 1.00 (s, 9H). II-13 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid {1,1-dimethyl-2- [3-(4-methyl-piperazin-1-yl)- phenyl]-ethyl}-amide 464 (300 MHz, CDCl3): 8.97(t, 1H), 8.20(s, 1H), 7.40(s, 1H), 7.18(t, 1H), 6.80(m, 1H), 6.68-6.60 (m, 2H), 3.37(d, 2H), 3.16(m, 4H), 3.02(s, 2H), 2.58(m, 4H), 2.39 (s, 3H), 1.48(s, 6H), 1.00 (s, 9H). II-14 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid {1,1-dimethyl-2- [4-(4-methyl-piperazin-1-yl)- phenyl]-ethyl}-amide 464 (300 MHz, CDCl3): 8.92(t, 1H), 8.04(s, 1H), 7.02(d, 2H), 6.84(d, 2H), 5.71(s, 1H), 3.38 (d, 2H), 3.20(m, 4H), 2.98(s, 2H), 2.60(m, 4H), 2.36(s, 3H), 1.45(s, 6H), 1.00(s, 9H). II-15 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid {1,1-dimethyl-2- [3(2-pyrrolidin-1-yl-ethylamino)- phenyl]-ethyl)-amide 478 (300 MHz, CDCl3): 8.95(t, 1H), 8.05(s, 1H), 7.10(t, 1H), 6.54-6.40 (m, 3H), 5.93(s, 1H), 3.37(d, 2H), 3.18(t, 2H), 2.94(s, 2H), 2.80(t, 2H), 2.65(m, 4H), 1.84(m, 4H), 1.49(s, 6H), 1.00(s, 9H). II-16 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid(2-{3-[4-(2- ethoxy-ethyl)-piperazin-1-yl]- phenyl}-1,1-dimethyl-ethyl)-amide 522 (300 MHz, CDCl3): 8.96(t, 1H), 8.20(s, 1H), 7.16(t, 1H), 6.80(m, 1H), 6.65-6.58(m, 2H), 5.80(s, 1H), 3.60(t, 2H), 3.52(q, 2H), 3.35(d, 2H), 3.13(m, 4H), 3.01 (s, 2H), 2.65(m, 6H), 1.47(s, 3H), 120(t, 3H), 1.00(s, 9H). II-17 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid [2-(4- difluoromethoxy-phenyl)-ethyl]- amide 404 (300 MHz, CDCl3): 9.00(t, 1H), 8.18(s, 1H), 7.21(d, 2H), 7.08(d, 2H), 6.14(t, 1H), 3.68 (m, 2H), 3.36(d, 2H), 2.93(t, 2H), 1.00(s, 9H). II-18 2-Cyano-4-(2,2-dimethyl- propylamino)-pyrimidine-5- carboxylic acid {2-[3-(4-methyl- piperazin-1-yl)-phenyl]-ethyl}- amide 436 (400 MHz, DMSO-d6): 9.28(t, 1H), 8.92(t, 1H), 7.21(t, 1H), 6.78(s, 1H), 6.76(d, 1H),6.64(d, 1H), 3.49(q, 2H), 3.30(d, 2H), 3.11(m, 4H), 2.78 (t, 2H), 2.48(m, 4H), 2.22(s, 3H), 0.98(s, 9H).
Claims (2)
1. A method for treating a patient suffering from or susceptible to a disease or medical condition in which cathepsin K is implicated, comprising administering an effective amount of a compound of formula I, or a pharmaceutically acceptable salt or ester thereof
wherein
R is H, —R4, —OR4 or NR3R4,
wherein R3 is H, lower alkyl or C3 to C10 cycloalkyl, and
R4 is lower alkyl or C3 to C10 cycloalkyl,
wherein R3 and R4 are independently, optionally substituted by halo, hydroxy, lower alkoxy, CN, NO2, or optionally mono- or di-lower alkyl substituted amino;
R1 is —CO—NR5R6, —NH—CO—R5, —CH2—NH—C(O)—R5, —CO—R5, —S(O)—R5, —S(O)2—R5, —CH2—CO—R5 or —CH2—NR5R6,
wherein
R5 is aryl, aryl-lower alkyl, C3-C10cycloalkyl, C3-C10cycloalkyl-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl,
R6 is H, aryl, aryl-lower alkyl, aryl-lower-alkenyl, C3-C10cycloalkyl, C3-C10cycloalkyl-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl, or
wherein R5 and R6 together with the nitrogen atom to which they attached are joined to form an N-heterocyclyl group,
wherein N-heterocyclyl denotes a saturated, partially unsaturated or aromatic nitrogen containing heterocyclic moiety attached via a nitrogen atom thereof having from 3 to 8 ring atoms optionally containing a further 1, 2 or 3 heteroatoms selected from N, NR7, O, S, S(O) or S(O)2 wherein R7 is H or optionally substituted (lower alkyl, carboxy, acyl (including both lower alkyl acyl, e.g. formyl, acetyl or propionyl, or aryl acyl, e.g. benzoyl), amido, aryl, S(O) or S(O)2), and wherein the N-heterocyclyl is optionally fused in a bicyclic structure, e.g. with a benzene or pyridine ring, and wherein the N-heterocyclyl is optionally linked in a spiro structure with a 3 to 8 membered cycloalkyl or heterocyclic ring wherein the heterocyclic ring has from 3 to 10 ring members and contains from 1 to 3 heteroatoms selected from N. NR6, O, S, S(O) or S(O)2 wherein R6 is as defined above), and
wherein heterocyclyl denotes a ring having from 3 to 10 ring members and containing from 1 to 3 heteroatoms selected from N, NR7, O, S, S(O) or S(O)2 wherein R7 is as defined above), and
wherein R5 and R6 are independently, optionally substituted by one or more groups, e.g. 1-3 groups, selected from halo, hydroxy, oxo, lower alkoxy, CN or NO2, or optionally substituted (optionally mono- or di-lower alkyl substituted amino, lower alkoxy, aryl, aryl-lower alkyl, N-heterocyclyl or N-heterocyclyl-lower alkyl) wherein the optional substitution comprises from 1 to 3 substituents selected from halo, hydroxy, lower alkoxy, lower alkoxy-lower alkyl, lower alkoxy-carbonyl CN, NO2, optionally mono- or di-lower alkyl substituted amino, N-heterocyclyl or N-heterocyclyl-lower alkyl or optionally mono- or di-lower alkyl substituted amino;
R2 is is independently H, or optionally substituted (lower alkyl, aryl, aryl-lower alkyl, C3-C10cycloalkyl, C3-C10cycloalkyl-lower alkyl, heterocyclyl or heterocyclyl-lower alkyl), and
wherein R2 is optionally substituted by halo, hydroxy, oxo, lower alkoxy, CN, NO2, or optionally mono- or di-lower alkyl substituted amino.
2-12. (canceled)
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PCT/EP2002/009661 WO2003020278A1 (en) | 2001-08-30 | 2002-08-29 | Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin k inhibitory activity for the treatment of inflammations and other diseases |
US10/487,741 US7112589B2 (en) | 2001-08-30 | 2002-08-29 | Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin k inhibitory activity for the treatment of inflammations and other diseases |
US11/291,007 US20060074092A1 (en) | 2001-08-30 | 2005-11-30 | Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin K inhibitory activity for the treatment of inflammations and other diseases |
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2002
- 2002-08-28 AR ARP020103230A patent/AR036375A1/en not_active Application Discontinuation
- 2002-08-29 IL IL16029502A patent/IL160295A0/en unknown
- 2002-08-29 AT AT02797650T patent/ATE345136T1/en active
- 2002-08-29 PL PL367821A patent/PL208280B1/en not_active IP Right Cessation
- 2002-08-29 JP JP2003524585A patent/JP4131701B2/en not_active Expired - Fee Related
- 2002-08-29 WO PCT/EP2002/009661 patent/WO2003020278A1/en active IP Right Grant
- 2002-08-29 ES ES02797650T patent/ES2275946T3/en not_active Expired - Lifetime
- 2002-08-29 RU RU2004109812/04A patent/RU2326119C2/en not_active IP Right Cessation
- 2002-08-29 PT PT02797650T patent/PT1423121E/en unknown
- 2002-08-29 PE PE2002000834A patent/PE20030772A1/en not_active Application Discontinuation
- 2002-08-29 KR KR1020047002973A patent/KR100629834B1/en not_active IP Right Cessation
- 2002-08-29 BR BR0212141-7A patent/BR0212141A/en not_active Withdrawn
- 2002-08-29 CA CA002456127A patent/CA2456127C/en not_active Expired - Fee Related
- 2002-08-29 CN CN028169638A patent/CN1549717B/en not_active Expired - Fee Related
- 2002-08-29 HU HU0401431A patent/HUP0401431A3/en unknown
- 2002-08-29 NZ NZ531287A patent/NZ531287A/en unknown
- 2002-08-29 MX MXPA04001930A patent/MXPA04001930A/en active IP Right Grant
- 2002-08-29 AU AU2002333758A patent/AU2002333758B2/en not_active Ceased
- 2002-08-29 US US10/487,741 patent/US7112589B2/en not_active Expired - Fee Related
- 2002-08-29 EP EP02797650A patent/EP1423121B1/en not_active Expired - Lifetime
- 2002-08-29 DE DE60216122T patent/DE60216122T2/en not_active Expired - Lifetime
-
2004
- 2004-02-25 CO CO04016657A patent/CO5560576A2/en not_active Application Discontinuation
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Patent Citations (4)
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US3202499A (en) * | 1960-11-02 | 1965-08-24 | Geigy Ag J R | Herbicidal compositions and method for inhibiting the growth of plants therewith |
US4220770A (en) * | 1977-04-14 | 1980-09-02 | Ciba-Geigy Corporation | Triazine compounds |
US20030032647A1 (en) * | 1999-09-16 | 2003-02-13 | Koichiro Yamada | Aromatic nitrogen-containing 6-membered cyclic compounds |
US7112589B2 (en) * | 2001-08-30 | 2006-09-26 | Novartis Ag | Cysteine protease inhibitors with 2-cyano-4-amino-pyrimidine structure and cathepsin k inhibitory activity for the treatment of inflammations and other diseases |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010503610A (en) * | 2006-05-22 | 2010-02-04 | ベルキュラ セラピューティクス インコーポレイティッド | Use of cathepsin K antagonists in bone production |
Also Published As
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RU2004109812A (en) | 2005-10-20 |
EP1423121A1 (en) | 2004-06-02 |
HUP0401431A3 (en) | 2004-11-29 |
CN1549717A (en) | 2004-11-24 |
RU2326119C2 (en) | 2008-06-10 |
AR036375A1 (en) | 2004-09-01 |
US20040249153A1 (en) | 2004-12-09 |
PT1423121E (en) | 2007-02-28 |
PL208280B1 (en) | 2011-04-29 |
IL160295A0 (en) | 2004-07-25 |
MXPA04001930A (en) | 2004-06-15 |
BR0212141A (en) | 2004-08-24 |
WO2003020278A1 (en) | 2003-03-13 |
JP2005505550A (en) | 2005-02-24 |
DE60216122T2 (en) | 2007-09-06 |
AU2002333758B2 (en) | 2006-01-19 |
KR100629834B1 (en) | 2006-09-29 |
HUP0401431A2 (en) | 2004-10-28 |
US7112589B2 (en) | 2006-09-26 |
CO5560576A2 (en) | 2005-09-30 |
DE60216122D1 (en) | 2006-12-28 |
ES2275946T3 (en) | 2007-06-16 |
ATE345136T1 (en) | 2006-12-15 |
PL367821A1 (en) | 2005-03-07 |
PE20030772A1 (en) | 2003-10-02 |
KR20040029101A (en) | 2004-04-03 |
CA2456127C (en) | 2009-10-20 |
NZ531287A (en) | 2005-12-23 |
CN1549717B (en) | 2011-08-17 |
CA2456127A1 (en) | 2003-03-13 |
EP1423121B1 (en) | 2006-11-15 |
JP4131701B2 (en) | 2008-08-13 |
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