AU680024B2 - A process for prepararing imidazopyridine derivatives - Google Patents
A process for prepararing imidazopyridine derivatives Download PDFInfo
- Publication number
- AU680024B2 AU680024B2 AU73057/94A AU7305794A AU680024B2 AU 680024 B2 AU680024 B2 AU 680024B2 AU 73057/94 A AU73057/94 A AU 73057/94A AU 7305794 A AU7305794 A AU 7305794A AU 680024 B2 AU680024 B2 AU 680024B2
- Authority
- AU
- Australia
- Prior art keywords
- general formula
- alkyl
- amidine
- aryl
- aralkyl
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 125000004857 imidazopyridinyl group Chemical class N1C(=NC2=C1C=CC=N2)* 0.000 title claims 6
- 150000001409 amidines Chemical class 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 229940123413 Angiotensin II antagonist Drugs 0.000 claims abstract description 3
- 239000002333 angiotensin II receptor antagonist Substances 0.000 claims abstract description 3
- 239000000543 intermediate Substances 0.000 claims abstract description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 11
- 125000003118 aryl group Chemical group 0.000 claims description 11
- -1 nitro, amino Chemical group 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- DFNYGALUNNFWKJ-UHFFFAOYSA-N aminoacetonitrile Chemical compound NCC#N DFNYGALUNNFWKJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 125000005843 halogen group Chemical group 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 7
- 125000000623 heterocyclic group Chemical group 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 6
- 150000002825 nitriles Chemical class 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 150000003573 thiols Chemical class 0.000 claims description 6
- 229910000039 hydrogen halide Inorganic materials 0.000 claims description 5
- 239000012433 hydrogen halide Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 4
- 125000001589 carboacyl group Chemical group 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 239000012442 inert solvent Substances 0.000 claims description 3
- 150000007529 inorganic bases Chemical class 0.000 claims description 3
- 150000007530 organic bases Chemical class 0.000 claims description 3
- 125000002252 acyl group Chemical group 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- 125000003282 alkyl amino group Chemical group 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 150000005232 imidazopyridines Chemical class 0.000 abstract description 8
- 239000000047 product Substances 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910001868 water Inorganic materials 0.000 description 4
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- BPYHGTCRXDWOIQ-UHFFFAOYSA-N 3-nitropyridin-2-amine Chemical compound NC1=NC=CC=C1[N+]([O-])=O BPYHGTCRXDWOIQ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- UENWRTRMUIOCKN-UHFFFAOYSA-N benzyl thiol Chemical compound SCC1=CC=CC=C1 UENWRTRMUIOCKN-UHFFFAOYSA-N 0.000 description 2
- 125000002837 carbocyclic group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- MLGCJYXIUPJQMP-UHFFFAOYSA-N n'-(cyanomethyl)propanimidamide Chemical compound CCC(N)=NCC#N MLGCJYXIUPJQMP-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- FJPGAMCQJNLTJC-UHFFFAOYSA-N 2,3-Heptanedione Chemical compound CCCCC(=O)C(C)=O FJPGAMCQJNLTJC-UHFFFAOYSA-N 0.000 description 1
- XFKYKTBPRBZDFG-UHFFFAOYSA-N 2-aminoacetonitrile;hydrochloride Chemical compound Cl.NCC#N XFKYKTBPRBZDFG-UHFFFAOYSA-N 0.000 description 1
- GAMYYCRTACQSBR-UHFFFAOYSA-N 4-azabenzimidazole Chemical compound C1=CC=C2NC=NC2=N1 GAMYYCRTACQSBR-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- YGECLGMKIBRZEU-UHFFFAOYSA-N CCC(N)=[S+]CC1=CC=CC=C1 Chemical compound CCC(N)=[S+]CC1=CC=CC=C1 YGECLGMKIBRZEU-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- WSMYVTOQOOLQHP-UHFFFAOYSA-N Malondialdehyde Chemical compound O=CCC=O WSMYVTOQOOLQHP-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- WRQNANDWMGAFTP-UHFFFAOYSA-N Methylacetoacetic acid Chemical compound COC(=O)CC(C)=O WRQNANDWMGAFTP-UHFFFAOYSA-N 0.000 description 1
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 150000001251 acridines Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000008361 aminoacetonitriles Chemical class 0.000 description 1
- 150000003927 aminopyridines Chemical class 0.000 description 1
- 229940111121 antirheumatic drug quinolines Drugs 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 125000004663 dialkyl amino group Chemical group 0.000 description 1
- KKJGVGPPASPLCR-UHFFFAOYSA-N diethyl 2,4-dioxopentanedioate Chemical compound CCOC(=O)C(=O)CC(=O)C(=O)OCC KKJGVGPPASPLCR-UHFFFAOYSA-N 0.000 description 1
- BVXUPHLMVXBGGY-UHFFFAOYSA-N dimethyl 2,4-dioxopentanedioate Chemical compound COC(=O)C(=O)CC(=O)C(=O)OC BVXUPHLMVXBGGY-UHFFFAOYSA-N 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 1
- UKFXDFUAPNAMPJ-UHFFFAOYSA-N ethylmalonic acid Chemical compound CCC(C(O)=O)C(O)=O UKFXDFUAPNAMPJ-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- ZEQPADQVGVSCSI-UHFFFAOYSA-N hexane-2,4-dione 3-methylpentane-2,4-dione Chemical compound CCC(=O)CC(C)=O.CC(=O)C(C)C(C)=O ZEQPADQVGVSCSI-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002537 isoquinolines Chemical class 0.000 description 1
- 150000002545 isoxazoles Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229940118019 malondialdehyde Drugs 0.000 description 1
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 description 1
- ZIYVHBGGAOATLY-UHFFFAOYSA-N methylmalonic acid Chemical compound OC(=O)C(C)C(O)=O ZIYVHBGGAOATLY-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- ZDYWPVCQPUPOJV-UHFFFAOYSA-N nonane-4,6-dione Chemical compound CCCC(=O)CC(=O)CCC ZDYWPVCQPUPOJV-UHFFFAOYSA-N 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 150000002916 oxazoles Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000002988 phenazines Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 150000003195 pteridines Chemical class 0.000 description 1
- 150000003212 purines Chemical class 0.000 description 1
- 150000003216 pyrazines Chemical class 0.000 description 1
- 150000003217 pyrazoles Chemical class 0.000 description 1
- 150000004892 pyridazines Chemical class 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 150000003233 pyrroles Chemical class 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH281593 | 1993-09-17 | ||
| CH2815/93 | 1993-09-17 | ||
| CN94116221A CN1045087C (zh) | 1993-09-17 | 1994-09-19 | 咪唑并吡啶类衍生物的制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7305794A AU7305794A (en) | 1995-03-30 |
| AU680024B2 true AU680024B2 (en) | 1997-07-17 |
Family
ID=36940453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU73057/94A Ceased AU680024B2 (en) | 1993-09-17 | 1994-09-16 | A process for prepararing imidazopyridine derivatives |
Country Status (20)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6049777A (en) * | 1995-06-30 | 2000-04-11 | Microsoft Corporation | Computer-implemented collaborative filtering based method for recommending an item to a user |
| US6092049A (en) * | 1995-06-30 | 2000-07-18 | Microsoft Corporation | Method and apparatus for efficiently recommending items using automated collaborative filtering and feature-guided automated collaborative filtering |
| US6112186A (en) * | 1995-06-30 | 2000-08-29 | Microsoft Corporation | Distributed system for facilitating exchange of user information and opinion using automated collaborative filtering |
| EP0994877A1 (en) | 1997-07-03 | 2000-04-26 | Du Pont Pharmaceuticals Company | Imidazopyrimidines and imidazopyridines for the treatment of neurological disorders |
| US6465484B1 (en) | 1997-09-26 | 2002-10-15 | Merck & Co., Inc. | Angiogenesis inhibitors |
| US6162804A (en) * | 1997-09-26 | 2000-12-19 | Merck & Co., Inc. | Tyrosine kinase inhibitors |
| US6365589B1 (en) | 1998-07-02 | 2002-04-02 | Bristol-Myers Squibb Pharma Company | Imidazo-pyridines, -pyridazines, and -triazines as corticotropin releasing factor antagonists |
| US6124463A (en) * | 1998-07-02 | 2000-09-26 | Dupont Pharmaceuticals | Benzimidazoles as corticotropin release factor antagonists |
| AU760020B2 (en) * | 1998-08-31 | 2003-05-08 | Merck & Co., Inc. | Novel angiogenesis inhibitors |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097525A (en) * | 1976-07-23 | 1978-06-27 | Pfizer Inc. | Aromatic amidines as antiviral agents in animals |
| DE3324115A1 (de) * | 1983-07-05 | 1985-01-17 | Dr. Karl Thomae Gmbh, 7950 Biberach | Neue imidazole, ihre herstellung und diese verbindungen enthaltende arzneimittel |
| FR2643903A1 (fr) * | 1989-03-03 | 1990-09-07 | Union Pharma Scient Appl | Nouveaux derives de benzimidazole, leurs procedes de preparation, intermediaires de synthese, compositions pharmaceutiques les contenant, utiles notamment pour le traitement des maladies cardiovasculaires, et des ulceres duodenaux |
| US5223499A (en) * | 1989-05-30 | 1993-06-29 | Merck & Co., Inc. | 6-amino substituted imidazo[4,5-bipyridines as angiotensin II antagonists |
| US5240938A (en) * | 1991-02-13 | 1993-08-31 | Merck & Co., Inc. | Angiotensin II antagonists incorporating a substituted pyridoimidazolyl ring |
| US5066654A (en) * | 1990-10-22 | 1991-11-19 | A. H. Robins Company, Incorporated | 2-aryl-3-heterocyclicmethyl-3H-imidazo[4,5-b]pyridines as anxiolytics and anticonvulsants |
| US5128327A (en) * | 1991-03-25 | 1992-07-07 | Merck & Co., Inc. | Angiotensin II antagonists incorporating a nitrogen containing six membered ring heterocycle |
-
1994
- 1994-08-30 CA CA002131134A patent/CA2131134A1/en not_active Abandoned
- 1994-09-13 JP JP6218370A patent/JPH07179464A/ja active Pending
- 1994-09-15 SI SI9430035T patent/SI0645388T1/xx unknown
- 1994-09-15 TR TR00935/94A patent/TR27818A/xx unknown
- 1994-09-15 BR BR9403573A patent/BR9403573A/pt not_active Application Discontinuation
- 1994-09-15 DE DE59401759T patent/DE59401759D1/de not_active Expired - Fee Related
- 1994-09-15 EP EP94114550A patent/EP0645388B1/de not_active Expired - Lifetime
- 1994-09-15 ES ES94114550T patent/ES2097594T3/es not_active Expired - Lifetime
- 1994-09-15 AT AT94114550T patent/ATE148701T1/de not_active IP Right Cessation
- 1994-09-15 DK DK94114550.0T patent/DK0645388T3/da active
- 1994-09-16 CZ CZ942265A patent/CZ226594A3/cs unknown
- 1994-09-16 AU AU73057/94A patent/AU680024B2/en not_active Ceased
- 1994-09-16 ZA ZA947188A patent/ZA947188B/xx unknown
- 1994-09-16 CN CN94116128A patent/CN1105996A/zh active Pending
- 1994-09-16 PL PL94305066A patent/PL305066A1/xx unknown
- 1994-09-16 HU HU9402664A patent/HU215605B/hu not_active IP Right Cessation
- 1994-09-16 SK SK1113-94A patent/SK111394A3/sk unknown
- 1994-09-18 IL IL110995A patent/IL110995A/en not_active IP Right Cessation
- 1994-09-19 CN CN94116221A patent/CN1045087C/zh not_active Expired - Fee Related
- 1994-09-19 US US08/308,431 patent/US5446159A/en not_active Expired - Fee Related
-
1997
- 1997-02-06 GR GR970400076T patent/GR3022501T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE59401759D1 (de) | 1997-03-20 |
| HU9402664D0 (en) | 1994-11-28 |
| CA2131134A1 (en) | 1995-03-18 |
| DK0645388T3 (da) | 1997-03-10 |
| US5446159A (en) | 1995-08-29 |
| ZA947188B (en) | 1995-05-11 |
| IL110995A (en) | 1998-02-08 |
| EP0645388B1 (de) | 1997-02-05 |
| CN1106009A (zh) | 1995-08-02 |
| ES2097594T3 (es) | 1997-04-01 |
| BR9403573A (pt) | 1995-05-16 |
| CN1105996A (zh) | 1995-08-02 |
| HU215605B (hu) | 1999-01-28 |
| CZ226594A3 (en) | 1995-04-12 |
| SI0645388T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1997-10-31 |
| TR27818A (tr) | 1995-08-29 |
| JPH07179464A (ja) | 1995-07-18 |
| CN1045087C (zh) | 1999-09-15 |
| GR3022501T3 (en) | 1997-05-31 |
| EP0645388A1 (de) | 1995-03-29 |
| AU7305794A (en) | 1995-03-30 |
| IL110995A0 (en) | 1994-11-28 |
| HUT68267A (en) | 1995-06-28 |
| PL305066A1 (en) | 1995-03-20 |
| ATE148701T1 (de) | 1997-02-15 |
| SK111394A3 (en) | 1995-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |