JPH08500338A - 貧血治療のためのピラゾロピリジン化合物 - Google Patents
貧血治療のためのピラゾロピリジン化合物Info
- Publication number
- JPH08500338A JPH08500338A JP6501330A JP50133094A JPH08500338A JP H08500338 A JPH08500338 A JP H08500338A JP 6501330 A JP6501330 A JP 6501330A JP 50133094 A JP50133094 A JP 50133094A JP H08500338 A JPH08500338 A JP H08500338A
- Authority
- JP
- Japan
- Prior art keywords
- group
- alkyl group
- alkyl
- carboxy
- formula
- 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.)
- Granted
Links
- 208000007502 anemia Diseases 0.000 title claims abstract description 15
- 150000005229 pyrazolopyridines Chemical class 0.000 title description 6
- -1 pyrazolopyridine compound Chemical class 0.000 claims abstract description 501
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 225
- 125000003277 amino group Chemical group 0.000 claims abstract description 23
- 150000003839 salts Chemical class 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 241001465754 Metazoa Species 0.000 claims abstract description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004480 active ingredient Substances 0.000 claims abstract description 5
- 239000000546 pharmaceutical excipient Substances 0.000 claims abstract description 3
- 239000003937 drug carrier Substances 0.000 claims abstract 2
- 125000000623 heterocyclic group Chemical group 0.000 claims description 82
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 81
- 125000001424 substituent group Chemical group 0.000 claims description 72
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 39
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 37
- 125000003282 alkyl amino group Chemical group 0.000 claims description 36
- 150000001875 compounds Chemical class 0.000 claims description 35
- 125000003545 alkoxy group Chemical group 0.000 claims description 32
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 26
- 125000002911 monocyclic heterocycle group Chemical group 0.000 claims description 26
- 125000002252 acyl group Chemical group 0.000 claims description 25
- 229910052736 halogen Inorganic materials 0.000 claims description 21
- 150000002367 halogens Chemical class 0.000 claims description 21
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 21
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 19
- 125000003342 alkenyl group Chemical group 0.000 claims description 18
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 claims description 16
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 16
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 15
- 125000004043 oxo group Chemical group O=* 0.000 claims description 13
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 12
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 125000004423 acyloxy group Chemical group 0.000 claims description 8
- 125000004076 pyridyl group Chemical group 0.000 claims description 8
- 241001024304 Mino Species 0.000 claims description 7
- 125000004104 aryloxy group Chemical group 0.000 claims description 7
- 125000000587 piperidin-1-yl group Chemical group [H]C1([H])N(*)C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 125000000714 pyrimidinyl group Chemical group 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 125000000304 alkynyl group Chemical group 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 5
- 125000002098 pyridazinyl group Chemical group 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 5
- 125000004925 dihydropyridyl group Chemical group N1(CC=CC=C1)* 0.000 claims description 4
- 125000004429 atom Chemical group 0.000 claims description 3
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000005942 tetrahydropyridyl group Chemical group 0.000 claims description 3
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical group C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 2
- 125000004194 piperazin-1-yl group Chemical group [H]N1C([H])([H])C([H])([H])N(*)C([H])([H])C1([H])[H] 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 2
- 125000002015 acyclic group Chemical group 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 27
- 125000004434 sulfur atom Chemical group 0.000 description 16
- 238000012360 testing method Methods 0.000 description 14
- 125000005236 alkanoylamino group Chemical group 0.000 description 13
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 11
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 11
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 125000003831 tetrazolyl group Chemical group 0.000 description 9
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 8
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 8
- 238000005481 NMR spectroscopy Methods 0.000 description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical class CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 7
- 125000005115 alkyl carbamoyl group Chemical group 0.000 description 7
- 125000003118 aryl group Chemical group 0.000 description 7
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 125000004466 alkoxycarbonylamino group Chemical group 0.000 description 6
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 6
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- OXCMYAYHXIHQOA-UHFFFAOYSA-N potassium;[2-butyl-5-chloro-3-[[4-[2-(1,2,4-triaza-3-azanidacyclopenta-1,4-dien-5-yl)phenyl]phenyl]methyl]imidazol-4-yl]methanol Chemical compound [K+].CCCCC1=NC(Cl)=C(CO)N1CC1=CC=C(C=2C(=CC=CC=2)C2=N[N-]N=N2)C=C1 OXCMYAYHXIHQOA-UHFFFAOYSA-N 0.000 description 6
- 102100031939 Erythropoietin Human genes 0.000 description 5
- 241000282412 Homo Species 0.000 description 5
- 125000005907 alkyl ester group Chemical group 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 150000002148 esters Chemical group 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 125000002950 monocyclic group Chemical group 0.000 description 5
- 125000003226 pyrazolyl group Chemical group 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 125000004214 1-pyrrolidinyl group Chemical group [H]C1([H])N(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 4
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 4
- 125000004442 acylamino group Chemical group 0.000 description 4
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 description 4
- 125000001589 carboacyl group Chemical group 0.000 description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 4
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 238000000921 elemental analysis Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000002971 oxazolyl group Chemical group 0.000 description 4
- 125000005493 quinolyl group Chemical group 0.000 description 4
- 125000001113 thiadiazolyl group Chemical group 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 125000004511 1,2,3-thiadiazolyl group Chemical group 0.000 description 3
- 125000004514 1,2,4-thiadiazolyl group Chemical group 0.000 description 3
- 125000004506 1,2,5-oxadiazolyl group Chemical group 0.000 description 3
- 125000001781 1,3,4-oxadiazolyl group Chemical group 0.000 description 3
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 125000004656 alkyl sulfonylamino group Chemical group 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 125000005874 benzothiadiazolyl group Chemical group 0.000 description 3
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 3
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 3
- 125000004541 benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 125000001246 bromo group Chemical group Br* 0.000 description 3
- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 description 3
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 3
- 238000004440 column chromatography Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 3
- 125000001153 fluoro group Chemical group F* 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 3
- 125000005843 halogen group Chemical group 0.000 description 3
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 3
- 150000003949 imides Chemical class 0.000 description 3
- 125000003453 indazolyl group Chemical group N1N=C(C2=C1C=CC=C2)* 0.000 description 3
- 125000003406 indolizinyl group Chemical group C=1(C=CN2C=CC=CC12)* 0.000 description 3
- 125000001041 indolyl group Chemical group 0.000 description 3
- 125000002346 iodo group Chemical group I* 0.000 description 3
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 description 3
- 125000005956 isoquinolyl group Chemical group 0.000 description 3
- 125000000842 isoxazolyl group Chemical group 0.000 description 3
- 125000002757 morpholinyl group Chemical group 0.000 description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 125000003367 polycyclic group Chemical group 0.000 description 3
- 125000001422 pyrrolinyl group Chemical group 0.000 description 3
- 125000000168 pyrrolyl group Chemical group 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000011593 sulfur Chemical group 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 125000000335 thiazolyl group Chemical group 0.000 description 3
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 2
- 125000004504 1,2,4-oxadiazolyl group Chemical group 0.000 description 2
- 125000004517 1,2,5-thiadiazolyl group Chemical group 0.000 description 2
- 125000004520 1,3,4-thiadiazolyl group Chemical group 0.000 description 2
- 125000005978 1-naphthyloxy group Chemical group 0.000 description 2
- YQTCQNIPQMJNTI-UHFFFAOYSA-N 2,2-dimethylpropan-1-one Chemical group CC(C)(C)[C]=O YQTCQNIPQMJNTI-UHFFFAOYSA-N 0.000 description 2
- UWTYIJJJSYDUQM-GOSISDBHSA-N 2-[(2r)-1-[3-(2-phenylpyrazolo[1,5-a]pyridin-3-yl)prop-2-enoyl]piperidin-2-yl]acetic acid Chemical compound OC(=O)C[C@H]1CCCCN1C(=O)C=CC1=C2C=CC=CN2N=C1C1=CC=CC=C1 UWTYIJJJSYDUQM-GOSISDBHSA-N 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 2
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 2
- 125000000143 2-carboxyethyl group Chemical group [H]OC(=O)C([H])([H])C([H])([H])* 0.000 description 2
- 125000003006 2-dimethylaminoethyl group Chemical group [H]C([H])([H])N(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004204 2-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C(OC([H])([H])[H])C([H])=C1[H] 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- 125000004195 4-methylpiperazin-1-yl group Chemical group [H]C([H])([H])N1C([H])([H])C([H])([H])N(*)C([H])([H])C1([H])[H] 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 239000004472 Lysine Substances 0.000 description 2
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 150000001204 N-oxides Chemical class 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000004390 alkyl sulfonyl group Chemical group 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 125000002785 azepinyl group Chemical group 0.000 description 2
- 125000003785 benzimidazolyl group Chemical group N1=C(NC2=C1C=CC=C2)* 0.000 description 2
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 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
- 230000037396 body weight Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 125000005053 dihydropyrimidinyl group Chemical group N1(CN=CC=C1)* 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- FATAVLOOLIRUNA-UHFFFAOYSA-N formylmethyl Chemical group [CH2]C=O FATAVLOOLIRUNA-UHFFFAOYSA-N 0.000 description 2
- 125000002541 furyl group Chemical group 0.000 description 2
- 238000005534 hematocrit Methods 0.000 description 2
- 125000003104 hexanoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000005935 hexyloxycarbonyl group Chemical group 0.000 description 2
- 125000006635 hexyloxycarbonylamino group Chemical group 0.000 description 2
- 125000002632 imidazolidinyl group Chemical group 0.000 description 2
- 125000002883 imidazolyl group Chemical group 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 125000001786 isothiazolyl group Chemical group 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 229940050176 methyl chloride Drugs 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- CMWTZPSULFXXJA-VIFPVBQESA-N naproxen Chemical group C1=C([C@H](C)C(O)=O)C=CC2=CC(OC)=CC=C21 CMWTZPSULFXXJA-VIFPVBQESA-N 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 125000001715 oxadiazolyl group Chemical group 0.000 description 2
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 description 2
- 125000000160 oxazolidinyl group Chemical group 0.000 description 2
- 125000001148 pentyloxycarbonyl group Chemical group 0.000 description 2
- 239000006187 pill Substances 0.000 description 2
- 125000005936 piperidyl group Chemical group 0.000 description 2
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000004742 propyloxycarbonyl group Chemical group 0.000 description 2
- 125000003373 pyrazinyl group Chemical group 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000036186 satiety Effects 0.000 description 2
- 235000019627 satiety Nutrition 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 229960002317 succinimide Drugs 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- RUPAXCPQAAOIPB-UHFFFAOYSA-N tert-butyl formate Chemical group CC(C)(C)OC=O RUPAXCPQAAOIPB-UHFFFAOYSA-N 0.000 description 2
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 2
- 125000001984 thiazolidinyl group Chemical group 0.000 description 2
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- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/445—Non condensed piperidines, e.g. piperocaine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/06—Antianaemics
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- Diabetes (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.有効成分として、以下の式: [式中、R1は低級アルキル基、適当な置換基を1個以上有していてもよいアリ ール基または複素環基、 R2 は式: (式中、R4は保護されたアミノ基またはヒドロキシ基、およびR5は水素また は低級アルキル基を意味する) で示される基; シアノ基; 式−A−R6 (式中、R6はアシル基、 または、式: −CORN (式中、RNは低級アルキル基、低級アルコキシ(低級)アルキル基、アシル オキシ(低級)アルキル基、カルボキシ基、保護されたカルボキシ基およびアシ ル(低級)アルキル基からなる群から選ばれた適当な置換基を1個以上有してい てもよい窒素含有複素環基) で示される基、および、 Aは適当な置換基を1個以上有していてもよい低級脂肪族炭化水素基を意味す る) で示される基; アミド化されたカルボキシ基; 適当な置換基を1個以上有していてもよい不飽和複素環基; アミノ基;または 保護されたアミノ基、および R3は水素、低級アルキル基、低級アルコキシ基またはハロゲンをそれぞれ意味 する] で示されるピラゾロピリジン化合物または医薬として許容されるその塩類を、医 薬として許容される担体または賦形剤と混合して含有する人または動物における 貧血の予防および/または治療のための医薬組成物。 2.貧血の予防および/または治療のための医薬を製造するための、以下の式: [式中、R1は低級アルキル基、適当な置換基を1個以上有していてもよいアリ ール基または複素環基、 R2は式: (式中、R4は保護されたアミノ基またはヒドロキシ基、およびR5は水素また は低級アルキル基を意味する) で示される基; シアノ基; 式:−A−R6 (式中、R6はアシル基、 または、式: −CORN (式中、RNは低級アルキル基、低級アルコキシ(低級)アルキル基、アシル オキシ(低級)アルキル基、カルボキシ基、保護されたカルボキシ基およびアシ ル(低級)アルキル基からなる群から選ばれた適当な置換基を1個以上有してい てもよい窒素含有複素環基) で示される基、および、 Aは適当な置換基を1個以上有していてもよい低級脂肪族炭化水素基を意味す る) で示される基; アミド化されたカルボキシ基; 適当な置換基を1個以上有していてもよい不飽和複素環基; アミノ基;または 保護されたアミノ基、および R3は水素、低級アルキル基、低級アルコキシ基またはハロゲンをそれぞれ意味 する] で示されるピラゾロピリジン化合物または医薬として許容されるその塩類の用途 。 3.以下の式: [式中、R1は低級アルキル基、適当な置換基を1個以上有していてもよいアリ ール基または複素環基、 R2は式: (式中、R4は保護されたアミノ基またはヒドロキシ基、およびR5は水素また は低級アルキル基を意味する) で示される基; シアノ基; 式:−A−R6 (式中、R6はアシル基、 または、式: −CORN (式中、RNは低級アルキル基、低級アルコキシ(低級)アルキル基、アシル オキシ(低級)アルキル基、カルボキシ基、保護されたカルボキシ基およびアシ ル(低級)アルキル基からなる群から選ばれた適当な置換基を1個以上有してい てもよい窒素含有複素環基) で示される基、および、 Aは適当な置換基を1個以上有していてもよい低級脂肪族炭化水素基を意味す る) で示される基; アミド化されたカルボキシ基; 適当な置換基を1個以上有していてもよい不飽和複素環基; アミノ基;または 保護されたアミノ基、および R3は水素、低級アルキル基、低級アルコキシ基またはハロゲンをそれぞれ意味 する] で示されるピラゾロピリジン化合物または医薬として許容されるその塩類を人ま たは動物に投与することからなる貧血の予防および/または治療方法。 4.ピラゾロピリジン化合物が以下の式: [式中、R1は低級アルキル基、適当な置換基を1個以上有していてもよいフェ ニル基、または窒素原子1ないし4個を含む不飽和3ないし8員複素単環基、 R2は式: (式中、R4は保護されたアミノ基またはヒドロキシ基、およびR5は水素または 低級アルキル基を意味する)で示される基: シアノ基: 式: −A−R6 [式中、R6は低級アルカノイル基;カルボキシ基;保護されたカルボキシ基; または式: −CORN (式中、RNは窒素原子1ないし4個を含む飽和3ないし8員複素単環基;窒素 原子1ないし4個を含む飽和縮合複素環基;または酸素原子1ないし2個および 窒素原子1ないし3個を含む飽和3ないし8員複素単環基を意味し、各々、低級 アルキル基、低級アルコキシ(低級)アルキル基、アシルオキシ(低級)アルキ ル基、アシル(低級)アルキル基、カルボキシ基および保護されたカルボキシ基 からなる群から選ばれた適当な置換基を1個以上有していてもよい)で示される 基、および、 Aは、各々適当な置換基を1個以上有していてもよい低級アルキル基、低級アル ケニル基または低級アルキニル基を意味する]で示される基、また は、 低級アルキル基;ヒドロキシおよびハロゲンを有する低級アルキル基;ヒドロ キシ(低級)アルキル基;低級アルコキシ(低級)アルキル基;カルボキシ(低 級)アルキル基;保護されたカルボキシ(低級)アルキル基;アミノ(低級)ア ルキル基;低級アルキルアミノ(低級)アルキル基;カルボキシ(低級)アルキ ルアミノ(低級)アルキル基;保護されたカルボキシ(低級)アルキルアミノ( 低級)アルキル基;ヒドロキシおよびアリールオキシを有する低級アルキルアミ ノ(低級)アルキル基;保護されたアミノ(低級)アルキル基;シアノ(低級) アルキル基;シアノ(高級)アルキル基;適当な置換基を1または2個以上有し ていてもよい複素環基を有する低級アルキル基;適当な置換基を1または2個以 上有していてもよい複素環基を有する高級アルキル基;アル(低級)アルキル基 ;低級アルキル基;適当な置換基を1または2個以上有していてもよい複素環基 ;カルボキシ(低級)アルケニル基;アミノ基;ジ(低級)アルキルアミノ基; ハロゲン;低級アルコキシ基;オキソ基;ヒドロキシ基;シアノ基;カルボキシ 基;保護されたカルボキシ基および低級アルカノイル基からなる群から選ばれた 適当な置換基を1ないし4個有していてもよい窒素原子1ないし4個を含む不飽 和3ないし8員複素単環基を意味する]で示される化合物または医薬として許容 されるその塩類である請求項1の医薬組成物、請求項2の用途または請求項3の 方法。 5.ピラゾロピリジン化合物が以下の式: [式中、R1はフェニル基、 R2は式: −A−R6 [式中、R6は式: −CORN (式中、RNは、各々低級アルキル基、低級アルコキシ(低級)アルキル基、低 級アルカノイルオキシ(低級)アルキル基、低級アルカノイル(低級)アルキル 基、カルボキシ(低級)アルキル基、低級アルコキシカルボニル(低級)アルキ ル基、低級アルコキシカルボニル基およびカルボキシ基からなる群から選ばれた 適当な置換基を1ないし4個有していてもよいピペリジノ基、ピロリジン−1− イル基、ペルヒドロアゼピン−1−イル基、ピペラジン−1−イル基、モルホリ ノ基、7−アザビシクロ〔2.2.1〕ヘプタン−7−イル基または3−アザビ シクロ〔3.2.2〕ノナン−3−イル基を意味する)で示される基、およびA は請求項4において定義した通りである]で示される基; 各々、低級アルキル基;ヒドロキシおよびハロゲンを有する低級アルキル基; ヒドロキシ(低級)アルキル基;低級アルコキシ(低級)アルキル基;カルボキ シ(低級)アルキル基;保護されたカルボキシ(低級)アルキル基;アミノ(低 級)アルキル基;低級アルキルアミノ(低級)アルキル基;カルボキシ(低級) アルキルアミノ(低級)アルキル基;保護されたカルボキシ(低級)アルキルア ミノ(低級)アルキル基;ヒドロキシおよびアリールオキシを有する低級アルキ ルアミノ(低級)アルキル基;保護されたアミノ(低級)アルキル基;シアノ( 低級)アルキル基;シアノ(高級)アルキル基;適当な置換基を1または2個以 上有していてもよい複素環基を有する低級アルキル基;適当な置換基を1または 2個以上有していてもよい複素環基を有する高級アルキル基;アル(低級)アル キル基;低級アルケニル基;適当な置換基を1または2個以上有していてもよい 複素環基;カルボキシ(低級)アルケニル基;アミノ基;ジ(低級)アルキルア ミノ基;ハロゲン;低級アルコキシ基、オキソ基;ヒドロキシ基;シアノ基;カ ルボキシ基;保護されたカルボキシ基および低級アルカノイル基からなる群から 選ばれた適当な置換基を1ないし4個有していてもよいピリダジニル基、ジヒド ロピリダジニル基、テトラヒドロピリダジニル基、ピリミジニル基、ジヒドロピ リミジニル基、ピリジル基、ジヒドロピリジル基、テトラヒドロピリジル基、ピ ラゾリル基またはイミダゾチアジアゾリル基、および R3は水素をそれぞれ意味する]で示される化合物または医薬として許容され るその塩類である請求項4の医薬組成物、請求項4の用途または請求項4の方法 。 6.ピラゾロピリジン化合物が以下の式: [式中、R1およびR3は各々請求項5において定義した通りであり、 R2 は式: −A−R6 {式中、R6は式: −CORN (式中、RNは、低級アルキル基、低級アルコキシ(低級)アルキル基、低級ア ルカノイルオキシ(低級)アルキル基、低級アルカノイル(低級)アルキル基、 カルボキシ(低級)アルキル基、低級アルコキシカルボニル(低級)アルキル基 、低級アルコキシカルボニル基およびカルボキシ基からなる群から選ばれた適当 な置換基を1ないし4個有していてもよいピペリジノ基を意味する)で示される 基、および、Aは請求項5において定義した通りである}で示される基、または 、 低級アルキル基;ヒドロキシおよびハロゲンを有する低級アルキル基;ヒドロ キシ(低級)アルキル基;低級アルコキシ(低級)アルキル基;カルボキシ(低 級)アルキル基;保護されたカルボキシ(低級)アルキル基;アミノ(低級)ア ルキル基;低級アルキルアミノ(低級)アルキル基;カルボキシ(低級)アルキ ルアミノ(低級)アルキル基;保護されたカルボキシ(低級)アルキルアミノ( 低級)アルキル基;ヒドロキシおよびアリールオキシを有する低級アルキルアミ ノ(低級)アルキル基;保護されたアミノ(低級)アルキル基;シアノ(低級) アルキル基;シアノ(高級)アルキル基;適当な置換基を1または2個以上 有していてもよい複素環基を有する低級アルキル基;適当な置換基を1または2 個以上有していてもよい複素環基を有する高級アルキル基;アル(低級)アルキ ル基;低級アルケニル基;適当な置換基を1または2個以上有していてもよい複 素環基;カルボキシ(低級)アルケニル基;アミノ基;ジ(低級)アルキルアミ ノ基;ハロゲン;低級アルコキシ基;オキソ基;ヒドロキシ基;シアノ基;カル ボキシ基;保護されたカルボキシ基および低級アルカノイル基からなる群から選 ばれた適当な置換基を1ないし4個有していてもよいジヒドロピリダジニル基を 意味する]で示される化合物または医薬として許容されるその塩類である請求項 5の医薬組成物、請求項5の用途または請求項5の方法。 7.ピラゾロピリジン化合物が以下の式: [式中、R1およびR3は各々請求項6において定義した通りであり、 R2は式: −A−R6 {式中、R6は式: −CORN (式中、RNはカルボキシ(低級)アルキル基を有するピペリジノ基を意味する )で示される基、および、Aは低級アルケニル基を意味する}で示される基、ま たは、 カルボキシ(低級)アルキル基とオキソ基とを有するジヒドロピリダジニル基 を意味する]で示される化合物または医薬として許容されるその塩類である請求 項6の医薬組成物、請求項6の用途または請求項6の方法。 8.ピラゾロピリジン化合物が、 (2R)−1−[3−(2−フェニルピラゾロ[1,5−a]ピリジン−3− イル)アクリロイル]−2−(カルボキシメチル)ピペリジン(トランス異性 体)、および 3−[2−(3−カルボキシプロピル)−3−キオソ−2,3−ジヒドロピリ ダジン−6−イル]−2−フェニルピラゾロ[1,5−a]ピリジンからなる群 から選ばれたものである請求項7の医薬組成物、請求項7の用途または請求項7 の方法。
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GB929212264A GB9212264D0 (en) | 1992-06-10 | 1992-06-10 | New use of the pyrazolopyridine compound |
GB929215794A GB9215794D0 (en) | 1992-07-24 | 1992-07-24 | New use of the pyrazolopyridine compound |
GB9215794.0 | 1992-07-24 | ||
GB9212264.7 | 1992-07-24 |
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JPH08500338A true JPH08500338A (ja) | 1996-01-16 |
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JP50133094A Expired - Lifetime JP3269084B2 (ja) | 1992-06-10 | 1993-06-07 | 貧血治療のためのピラゾロピリジン化合物 |
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US (1) | US5643938A (ja) |
EP (1) | EP0644762B1 (ja) |
JP (1) | JP3269084B2 (ja) |
AT (1) | ATE161178T1 (ja) |
DE (1) | DE69315836T2 (ja) |
WO (1) | WO1993025205A1 (ja) |
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WO1997040047A1 (fr) * | 1996-04-25 | 1997-10-30 | Fujisawa Pharmaceutical Co., Ltd. | Medicaments pour la prevention et le traitement des lesions et de l'ileus par ischemie intestinale |
WO2009016812A1 (ja) * | 2007-07-27 | 2009-02-05 | Kowa Company, Ltd. | 2-フェニルキノリン-4-カルボン酸誘導体を有効成分とする貧血の予防及び/又は治療剤 |
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ATE278452T1 (de) * | 1995-05-10 | 2004-10-15 | Bord Na Mona | Abgasbehandlungsverfahren |
AUPO111096A0 (en) * | 1996-07-18 | 1996-08-08 | Fujisawa Pharmaceutical Co., Ltd. | New compound |
WO1998041237A1 (fr) | 1997-03-18 | 1998-09-24 | Fujisawa Pharmaceutical Co., Ltd. | Medicaments pour la prevention et la therapie de l'hyperphosphatemie |
DE19904396A1 (de) * | 1999-02-04 | 2000-08-10 | Bayer Ag | Substituierte Pyrazolbenzylamin-Derivate |
DE19904406A1 (de) * | 1999-02-04 | 2000-08-10 | Bayer Ag | Substituierte Pyrazolcarbonsäuren |
DE19929785A1 (de) * | 1999-06-29 | 2001-01-04 | Bayer Ag | Tetrahydrochinolinyl-6-methyldihydrothiadiazinon-Derivate und ihre Verwendung |
US20050282751A1 (en) * | 2004-03-19 | 2005-12-22 | Ajinomoto Co., Inc. | Therapeutic agent for renal anemia |
PL2350079T3 (pl) * | 2008-10-02 | 2013-03-29 | Lilly Co Eli | Związki tiazolilo-pirazolopirymidynowe jako syntetyczne półprodukty i pokrewne procesy syntetyczne |
WO2012087833A1 (en) | 2010-12-22 | 2012-06-28 | Abbott Laboratories | Hepatitis c inhibitors and uses thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4925849A (en) * | 1987-06-15 | 1990-05-15 | Fujisawa Pharmaceutical Company, Ltd. | Pharmaceutically useful pyrazolopyridines |
US5338743A (en) * | 1988-06-06 | 1994-08-16 | Fujisawa Pharmaceutical Co., Ltd. | New use of the adenosine antagonist |
GB8901423D0 (en) * | 1989-01-23 | 1989-03-15 | Fujisawa Pharmaceutical Co | Pyrazolopyridine compound and processes for preparation thereof |
US5459031A (en) * | 1993-11-05 | 1995-10-17 | Amgen Inc. | Methods for controlling sialic acid derivatives in recombinant glycoproteins |
-
1993
- 1993-06-07 DE DE69315836T patent/DE69315836T2/de not_active Expired - Lifetime
- 1993-06-07 JP JP50133094A patent/JP3269084B2/ja not_active Expired - Lifetime
- 1993-06-07 EP EP93913487A patent/EP0644762B1/en not_active Expired - Lifetime
- 1993-06-07 AT AT93913487T patent/ATE161178T1/de active
- 1993-06-07 WO PCT/JP1993/000762 patent/WO1993025205A1/en active IP Right Grant
- 1993-06-07 US US08/338,539 patent/US5643938A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997040047A1 (fr) * | 1996-04-25 | 1997-10-30 | Fujisawa Pharmaceutical Co., Ltd. | Medicaments pour la prevention et le traitement des lesions et de l'ileus par ischemie intestinale |
US6214843B1 (en) * | 1996-04-25 | 2001-04-10 | Fujitsawa Pharmaceutical Co., Ltd. | Preventives and remedies for ischemic intestinal lesion and ileus |
WO2009016812A1 (ja) * | 2007-07-27 | 2009-02-05 | Kowa Company, Ltd. | 2-フェニルキノリン-4-カルボン酸誘導体を有効成分とする貧血の予防及び/又は治療剤 |
Also Published As
Publication number | Publication date |
---|---|
JP3269084B2 (ja) | 2002-03-25 |
DE69315836D1 (de) | 1998-01-29 |
DE69315836T2 (de) | 1998-04-09 |
ATE161178T1 (de) | 1998-01-15 |
EP0644762B1 (en) | 1997-12-17 |
US5643938A (en) | 1997-07-01 |
WO1993025205A1 (en) | 1993-12-23 |
EP0644762A1 (en) | 1995-03-29 |
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