WO2022156783A1 - 咪唑并吡啶类化合物的制备方法及其中间体 - Google Patents
咪唑并吡啶类化合物的制备方法及其中间体 Download PDFInfo
- Publication number
- WO2022156783A1 WO2022156783A1 PCT/CN2022/073298 CN2022073298W WO2022156783A1 WO 2022156783 A1 WO2022156783 A1 WO 2022156783A1 CN 2022073298 W CN2022073298 W CN 2022073298W WO 2022156783 A1 WO2022156783 A1 WO 2022156783A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- reaction
- intermediate shown
- preparation
- compound
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 78
- -1 imidazopyridine compound Chemical class 0.000 title claims abstract description 61
- 238000006243 chemical reaction Methods 0.000 claims description 227
- 239000000543 intermediate Substances 0.000 claims description 195
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 65
- 150000001875 compounds Chemical class 0.000 claims description 55
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 39
- 230000035484 reaction time Effects 0.000 claims description 35
- 239000003054 catalyst Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 34
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 32
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 26
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 25
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical group CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 20
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 20
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 19
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 19
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 19
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 19
- 229910052736 halogen Inorganic materials 0.000 claims description 18
- 150000002367 halogens Chemical class 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 17
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 claims description 17
- UYWQUFXKFGHYNT-UHFFFAOYSA-N phenylmethyl ester of formic acid Natural products O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 claims description 17
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 17
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 15
- 150000007530 organic bases Chemical class 0.000 claims description 13
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical group [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 12
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 12
- 239000002585 base Substances 0.000 claims description 12
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 11
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 9
- 229910052723 transition metal Inorganic materials 0.000 claims description 9
- 150000003624 transition metals Chemical group 0.000 claims description 9
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 230000031709 bromination Effects 0.000 claims description 8
- 238000005893 bromination reaction Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000000460 chlorine Chemical group 0.000 claims description 8
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 150000007529 inorganic bases Chemical class 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052801 chlorine Chemical group 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 6
- GPAYUJZHTULNBE-UHFFFAOYSA-O diphenylphosphanium Chemical compound C=1C=CC=CC=1[PH2+]C1=CC=CC=C1 GPAYUJZHTULNBE-UHFFFAOYSA-O 0.000 claims description 6
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 6
- 125000006239 protecting group Chemical group 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 6
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical group CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052794 bromium Inorganic materials 0.000 claims description 5
- 238000010511 deprotection reaction Methods 0.000 claims description 5
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical group [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical group BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- YNESATAKKCNGOF-UHFFFAOYSA-N lithium bis(trimethylsilyl)amide Chemical compound [Li+].C[Si](C)(C)[N-][Si](C)(C)C YNESATAKKCNGOF-UHFFFAOYSA-N 0.000 claims description 4
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229940126214 compound 3 Drugs 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 3
- IUBQJLUDMLPAGT-UHFFFAOYSA-N potassium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([K])[Si](C)(C)C IUBQJLUDMLPAGT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 claims description 3
- UKSZBOKPHAQOMP-SVLSSHOZSA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 UKSZBOKPHAQOMP-SVLSSHOZSA-N 0.000 claims description 2
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 2
- MENYRYNFSIBDQN-UHFFFAOYSA-N 5,5-dibromoimidazolidine-2,4-dione Chemical compound BrC1(Br)NC(=O)NC1=O MENYRYNFSIBDQN-UHFFFAOYSA-N 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- ODWXUNBKCRECNW-UHFFFAOYSA-M bromocopper(1+) Chemical compound Br[Cu+] ODWXUNBKCRECNW-UHFFFAOYSA-M 0.000 claims description 2
- WXMZPPIDLJRXNK-UHFFFAOYSA-N butyl(diphenyl)phosphane Chemical compound C=1C=CC=CC=1P(CCCC)C1=CC=CC=C1 WXMZPPIDLJRXNK-UHFFFAOYSA-N 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims description 2
- ZPATUOFYXSBHMN-UHFFFAOYSA-N pyridine;trihydrobromide Chemical compound [H+].[H+].[H+].[Br-].[Br-].[Br-].C1=CC=NC=C1 ZPATUOFYXSBHMN-UHFFFAOYSA-N 0.000 claims description 2
- 238000006722 reduction reaction Methods 0.000 claims description 2
- JPJGNZQDELRZGE-UHFFFAOYSA-N (phenyl-$l^{2}-phosphanyl)benzene Chemical compound C=1C=CC=CC=1[P]C1=CC=CC=C1 JPJGNZQDELRZGE-UHFFFAOYSA-N 0.000 claims 1
- IBXMKLPFLZYRQZ-UHFFFAOYSA-N 1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].[Pd].C=1C=CC=CC=1C=CC(=O)C=CC1=CC=CC=C1 IBXMKLPFLZYRQZ-UHFFFAOYSA-N 0.000 claims 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims 1
- 229960001701 chloroform Drugs 0.000 claims 1
- SNRCKKQHDUIRIY-UHFFFAOYSA-L cyclopenta-1,4-dien-1-yl(diphenyl)phosphane;dichloromethane;dichloropalladium;iron(2+) Chemical compound [Fe+2].ClCCl.Cl[Pd]Cl.C1=C[CH-]C(P(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1.C1=C[CH-]C(P(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 SNRCKKQHDUIRIY-UHFFFAOYSA-L 0.000 claims 1
- 150000002902 organometallic compounds Chemical class 0.000 claims 1
- 102100040460 P2X purinoceptor 3 Human genes 0.000 abstract description 20
- 101710189970 P2X purinoceptor 3 Proteins 0.000 abstract description 20
- 206010011224 Cough Diseases 0.000 abstract description 9
- 230000036592 analgesia Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 74
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 63
- 239000012074 organic phase Substances 0.000 description 29
- 230000015572 biosynthetic process Effects 0.000 description 22
- 238000003786 synthesis reaction Methods 0.000 description 21
- 230000002829 reductive effect Effects 0.000 description 20
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 19
- 238000004809 thin layer chromatography Methods 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 238000005481 NMR spectroscopy Methods 0.000 description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 12
- 239000008346 aqueous phase Substances 0.000 description 11
- SWDZULZPFCEXBS-JTQLQIEISA-N CC(C)(C)OC(N1C[C@H](CCC(C(C(F)=C(C(Br)=C2)F)=C2F)=O)OCC1)=O Chemical compound CC(C)(C)OC(N1C[C@H](CCC(C(C(F)=C(C(Br)=C2)F)=C2F)=O)OCC1)=O SWDZULZPFCEXBS-JTQLQIEISA-N 0.000 description 10
- HEDRZPFGACZZDS-MICDWDOJSA-N deuterated chloroform Substances [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 10
- CDRSBPYJKRZQAY-UHFFFAOYSA-N methyl morpholine-4-carboxylate Chemical compound COC(=O)N1CCOCC1 CDRSBPYJKRZQAY-UHFFFAOYSA-N 0.000 description 10
- 238000010898 silica gel chromatography Methods 0.000 description 10
- 238000006646 Dess-Martin oxidation reaction Methods 0.000 description 9
- NKLCNNUWBJBICK-UHFFFAOYSA-N dess–martin periodinane Chemical compound C1=CC=C2I(OC(=O)C)(OC(C)=O)(OC(C)=O)OC(=O)C2=C1 NKLCNNUWBJBICK-UHFFFAOYSA-N 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000001590 oxidative effect Effects 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 7
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 description 6
- FLKLGKIBOHXQNE-ZDUSSCGKSA-N CC(C)(C)OC(C1=CC(F)=C(C(CC[C@@H](C2)OCCN2C(OC(C)(C)C)=O)=O)C(F)=C1F)=O Chemical compound CC(C)(C)OC(C1=CC(F)=C(C(CC[C@@H](C2)OCCN2C(OC(C)(C)C)=O)=O)C(F)=C1F)=O FLKLGKIBOHXQNE-ZDUSSCGKSA-N 0.000 description 6
- LSWCKOKKEGAWQN-JTQLQIEISA-N CC(C)(C)OC(N1C[C@H](CCC(C(C(F)=CC(C(O)=O)=C2F)=C2F)=O)OCC1)=O Chemical compound CC(C)(C)OC(N1C[C@H](CCC(C(C(F)=CC(C(O)=O)=C2F)=C2F)=O)OCC1)=O LSWCKOKKEGAWQN-JTQLQIEISA-N 0.000 description 6
- MNRGOGXLDDZLSR-QMMMGPOBSA-N COC(N1C[C@H](CCC(C(C(F)=CC(C(O)=O)=C2F)=C2F)=O)OCC1)=O Chemical compound COC(N1C[C@H](CCC(C(C(F)=CC(C(O)=O)=C2F)=C2F)=O)OCC1)=O MNRGOGXLDDZLSR-QMMMGPOBSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- QXIAGKWWKMKVLE-VIFPVBQESA-N 3-[(2S)-4-[(2-methylpropan-2-yl)oxycarbonyl]morpholin-2-yl]propanoic acid Chemical compound C(C)(C)(C)OC(=O)N1C[C@@H](OCC1)CCC(=O)O QXIAGKWWKMKVLE-VIFPVBQESA-N 0.000 description 5
- AZBCKLJDJXXDAU-JTQLQIEISA-N CC(C)(C)OC(N1C[C@H](CCC(OC)=O)OCC1)=O Chemical compound CC(C)(C)OC(N1C[C@H](CCC(OC)=O)OCC1)=O AZBCKLJDJXXDAU-JTQLQIEISA-N 0.000 description 5
- 239000005557 antagonist Substances 0.000 description 5
- 125000004429 atom Chemical group 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- JUFSKIUHKINDQZ-LBPRGKRZSA-N methyl (2S)-2-[[7-chloro-2-[2,3,6-trifluoro-4-(methylcarbamoyl)phenyl]imidazo[1,2-a]pyridin-3-yl]methyl]morpholine-4-carboxylate Chemical compound CNC(C1=CC(F)=C(C2=C(C[C@@H](C3)OCCN3C(OC)=O)N(C=CC(Cl)=C3)C3=N2)C(F)=C1F)=O JUFSKIUHKINDQZ-LBPRGKRZSA-N 0.000 description 5
- QRGSJVYWRQGVHG-ZDUSSCGKSA-N methyl (2S)-2-[[7-methyl-2-[2,3,6-trifluoro-4-(methylcarbamoyl)phenyl]imidazo[1,2-a]pyridin-3-yl]methyl]morpholine-4-carboxylate Chemical compound CC1=CC2=NC(C(C(F)=CC(C(NC)=O)=C3F)=C3F)=C(C[C@@H](C3)OCCN3C(OC)=O)N2C=C1 QRGSJVYWRQGVHG-ZDUSSCGKSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- LWKMTSRRGUVABD-MRVPVSSYSA-N tert-butyl (2r)-2-formylmorpholine-4-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCO[C@@H](C=O)C1 LWKMTSRRGUVABD-MRVPVSSYSA-N 0.000 description 5
- INELTYBDBBEEFJ-JTQLQIEISA-N CC(C)(C)OC(N1C[C@H](C=CC(OC)=O)OCC1)=O Chemical compound CC(C)(C)OC(N1C[C@H](C=CC(OC)=O)OCC1)=O INELTYBDBBEEFJ-JTQLQIEISA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- STUHQDIOZQUPGP-UHFFFAOYSA-N morpholin-4-ium-4-carboxylate Chemical compound OC(=O)N1CCOCC1 STUHQDIOZQUPGP-UHFFFAOYSA-N 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 4
- 239000007818 Grignard reagent Substances 0.000 description 3
- 206010020751 Hypersensitivity Diseases 0.000 description 3
- 102100040479 P2X purinoceptor 2 Human genes 0.000 description 3
- 101710189968 P2X purinoceptor 2 Proteins 0.000 description 3
- 208000002193 Pain Diseases 0.000 description 3
- 102000002294 Purinergic P2X Receptors Human genes 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 208000026935 allergic disease Diseases 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 239000012230 colorless oil Substances 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 230000009610 hypersensitivity Effects 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 102000005962 receptors Human genes 0.000 description 3
- 108020003175 receptors Proteins 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- XSMLLZPSNLQCQU-UHFFFAOYSA-N 1-bromo-2,3,5-trifluorobenzene Chemical compound FC1=CC(F)=C(F)C(Br)=C1 XSMLLZPSNLQCQU-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- OIYYFIMQXZWXLY-VIFPVBQESA-N COC(C1=CC(F)=C(C(CC[C@@H](C2)OCCN2C(OC)=O)=O)C(F)=C1F)=O Chemical compound COC(C1=CC(F)=C(C(CC[C@@H](C2)OCCN2C(OC)=O)=O)C(F)=C1F)=O OIYYFIMQXZWXLY-VIFPVBQESA-N 0.000 description 2
- OKKJLVBELUTLKV-MZCSYVLQSA-N Deuterated methanol Chemical compound [2H]OC([2H])([2H])[2H] OKKJLVBELUTLKV-MZCSYVLQSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- 208000004454 Hyperalgesia Diseases 0.000 description 2
- 208000035154 Hyperesthesia Diseases 0.000 description 2
- 206010020853 Hypertonic bladder Diseases 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- UJWHQSMIRRYWEP-NSHDSACASA-N O(C(C)(C)C)C(=O)N1C[C@@H](OCC1)CCC(=O)N(C)OC Chemical compound O(C(C)(C)C)C(=O)N1C[C@@H](OCC1)CCC(=O)N(C)OC UJWHQSMIRRYWEP-NSHDSACASA-N 0.000 description 2
- 208000009722 Overactive Urinary Bladder Diseases 0.000 description 2
- 101710189973 P2X purinoceptor 1 Proteins 0.000 description 2
- 102100040444 P2X purinoceptor 1 Human genes 0.000 description 2
- 102100037601 P2X purinoceptor 4 Human genes 0.000 description 2
- 101710189967 P2X purinoceptor 4 Proteins 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 108010000836 Purinergic P2X Receptors Proteins 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical class [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 208000013116 chronic cough Diseases 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- QTMDXZNDVAMKGV-UHFFFAOYSA-L copper(ii) bromide Chemical compound [Cu+2].[Br-].[Br-] QTMDXZNDVAMKGV-UHFFFAOYSA-L 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 150000005232 imidazopyridines Chemical class 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 2
- 238000011813 knockout mouse model Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- XMJHPCRAQCTCFT-UHFFFAOYSA-N methyl chloroformate Chemical compound COC(Cl)=O XMJHPCRAQCTCFT-UHFFFAOYSA-N 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 208000020629 overactive bladder Diseases 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 210000002248 primary sensory neuron Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002464 receptor antagonist Substances 0.000 description 2
- 229940044551 receptor antagonist Drugs 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000020341 sensory perception of pain Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KFSWOYRRADNOEZ-NSHDSACASA-N tert-butyl (2S)-2-[3-oxo-3-(2,3,6-trifluoro-4-methoxycarbonylphenyl)propyl]morpholine-4-carboxylate Chemical compound CC(C)(C)OC(N1C[C@H](CCC(C(C(F)=C(C(C(OC)=O)=C2)F)=C2F)=O)OCC1)=O KFSWOYRRADNOEZ-NSHDSACASA-N 0.000 description 2
- FJYBLMJHXRWDAQ-MRVPVSSYSA-N tert-butyl (2r)-2-(hydroxymethyl)morpholine-4-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCO[C@@H](CO)C1 FJYBLMJHXRWDAQ-MRVPVSSYSA-N 0.000 description 2
- JDDPITNKUXPLSB-UHFFFAOYSA-N tert-butyl morpholine-4-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCOCC1 JDDPITNKUXPLSB-UHFFFAOYSA-N 0.000 description 2
- CYPYTURSJDMMMP-WVCUSYJESA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].[Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 CYPYTURSJDMMMP-WVCUSYJESA-N 0.000 description 1
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 1
- 125000005918 1,2-dimethylbutyl group Chemical group 0.000 description 1
- 125000006218 1-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- CPZROMDDCPPFOO-UHFFFAOYSA-N 2,3,5-trifluorobenzoic acid Chemical compound OC(=O)C1=CC(F)=CC(F)=C1F CPZROMDDCPPFOO-UHFFFAOYSA-N 0.000 description 1
- ZFFBIQMNKOJDJE-UHFFFAOYSA-N 2-bromo-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(Br)C(=O)C1=CC=CC=C1 ZFFBIQMNKOJDJE-UHFFFAOYSA-N 0.000 description 1
- 125000006176 2-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(C([H])([H])*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 125000005916 2-methylpentyl group Chemical group 0.000 description 1
- 125000003542 3-methylbutan-2-yl group Chemical group [H]C([H])([H])C([H])(*)C([H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- RQMWVVBHJMUJNZ-UHFFFAOYSA-N 4-chloropyridin-2-amine Chemical compound NC1=CC(Cl)=CC=N1 RQMWVVBHJMUJNZ-UHFFFAOYSA-N 0.000 description 1
- ORLGLBZRQYOWNA-UHFFFAOYSA-N 4-methylpyridin-2-amine Chemical compound CC1=CC=NC(N)=C1 ORLGLBZRQYOWNA-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- WABSFOVLEUZRQT-UHFFFAOYSA-N CC1=CC2=NC(C(C(F)=CC(C(OC)=O)=C3F)=C3F)=CN2C=C1 Chemical compound CC1=CC2=NC(C(C(F)=CC(C(OC)=O)=C3F)=C3F)=CN2C=C1 WABSFOVLEUZRQT-UHFFFAOYSA-N 0.000 description 1
- HXYRJXXFAXLEFF-LBPRGKRZSA-N COC(C(C=C(C(C1=C(C[C@@H](C2)OCCN2C(OC)=O)N(C=CC(Cl)=C2)C2=N1)=C1F)F)=C1F)=O Chemical compound COC(C(C=C(C(C1=C(C[C@@H](C2)OCCN2C(OC)=O)N(C=CC(Cl)=C2)C2=N1)=C1F)F)=C1F)=O HXYRJXXFAXLEFF-LBPRGKRZSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 1
- 208000000094 Chronic Pain Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021589 Copper(I) bromide Inorganic materials 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 229910021595 Copper(I) iodide Inorganic materials 0.000 description 1
- 229910021590 Copper(II) bromide Inorganic materials 0.000 description 1
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical class [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 206010065390 Inflammatory pain Diseases 0.000 description 1
- 108090000862 Ion Channels Proteins 0.000 description 1
- 102000004310 Ion Channels Human genes 0.000 description 1
- 102100037603 P2X purinoceptor 5 Human genes 0.000 description 1
- 101710189969 P2X purinoceptor 5 Proteins 0.000 description 1
- 102100037606 P2X purinoceptor 6 Human genes 0.000 description 1
- 101710190089 P2X purinoceptor 6 Proteins 0.000 description 1
- 101710189965 P2X purinoceptor 7 Proteins 0.000 description 1
- 102100037602 P2X purinoceptor 7 Human genes 0.000 description 1
- 108091075598 P2X receptor family Proteins 0.000 description 1
- 229910002666 PdCl2 Inorganic materials 0.000 description 1
- 101150003085 Pdcl gene Proteins 0.000 description 1
- 102000000033 Purinergic Receptors Human genes 0.000 description 1
- 108010080192 Purinergic Receptors Proteins 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical group [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 230000036982 action potential Effects 0.000 description 1
- 230000009692 acute damage Effects 0.000 description 1
- 210000003626 afferent pathway Anatomy 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229950011175 aminopicoline Drugs 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000006907 apoptotic process Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940125782 compound 2 Drugs 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- GPAYUJZHTULNBE-UHFFFAOYSA-N diphenylphosphine Chemical compound C=1C=CC=CC=1PC1=CC=CC=C1 GPAYUJZHTULNBE-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000004795 grignard reagents Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 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 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- AFRJJFRNGGLMDW-UHFFFAOYSA-N lithium amide Chemical compound [Li+].[NH2-] AFRJJFRNGGLMDW-UHFFFAOYSA-N 0.000 description 1
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 description 1
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 1
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 1
- NRUBUZBAZRTHHX-UHFFFAOYSA-N lithium;propan-2-ylazanide Chemical compound [Li+].CC(C)[NH-] NRUBUZBAZRTHHX-UHFFFAOYSA-N 0.000 description 1
- CNOXNGAZMFFQSR-UHFFFAOYSA-N lithium;propylazanide Chemical compound [Li+].CCC[NH-] CNOXNGAZMFFQSR-UHFFFAOYSA-N 0.000 description 1
- 210000002540 macrophage Anatomy 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- CEAJFNBWKBTRQE-UHFFFAOYSA-N methanamine;methanol Chemical compound NC.OC CEAJFNBWKBTRQE-UHFFFAOYSA-N 0.000 description 1
- YVWMLRYTULEDLS-ZDUSSCGKSA-N methyl (2S)-2-[[7-methyl-2-(2,3,6-trifluoro-4-methoxycarbonylphenyl)imidazo[1,2-a]pyridin-3-yl]methyl]morpholine-4-carboxylate Chemical compound CC1=CC2=NC(C(C(F)=CC(C(OC)=O)=C3F)=C3F)=C(C[C@@H](C3)OCCN3C(OC)=O)N2C=C1 YVWMLRYTULEDLS-ZDUSSCGKSA-N 0.000 description 1
- NTNUDYROPUKXNA-UHFFFAOYSA-N methyl 2-(triphenyl-$l^{5}-phosphanylidene)acetate Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(=CC(=O)OC)C1=CC=CC=C1 NTNUDYROPUKXNA-UHFFFAOYSA-N 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- KRKPYFLIYNGWTE-UHFFFAOYSA-N n,o-dimethylhydroxylamine Chemical compound CNOC KRKPYFLIYNGWTE-UHFFFAOYSA-N 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000001640 nerve ending Anatomy 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000008050 pain signaling Effects 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 210000002243 primary neuron Anatomy 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 208000005069 pulmonary fibrosis Diseases 0.000 description 1
- 208000002815 pulmonary hypertension Diseases 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000003594 spinal ganglia Anatomy 0.000 description 1
- 208000010110 spontaneous platelet aggregation Diseases 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- NYGJBYLNENTKTE-UHFFFAOYSA-N tert-butyl 2,3,5-trifluorobenzoate Chemical compound CC(C)(C)OC(=O)c1cc(F)cc(F)c1F NYGJBYLNENTKTE-UHFFFAOYSA-N 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical group C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 230000036318 urination frequency Effects 0.000 description 1
- 210000001177 vas deferen Anatomy 0.000 description 1
- 230000006442 vascular tone Effects 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D265/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
- C07D265/28—1,4-Oxazines; Hydrogenated 1,4-oxazines
- C07D265/30—1,4-Oxazines; Hydrogenated 1,4-oxazines not condensed with other rings
Definitions
- the present invention relates to a preparation method of imidazopyridine compounds and intermediates thereof.
- P2X receptors are non-selective ATP-gated ion channel receptors, purinergic receptors, that bind to extracellular ATP, mainly from damaged or inflamed tissues.
- the receptor is widely expressed in the nervous, immune, cardiovascular, skeletal, gastrointestinal, respiratory, endocrine and other systems, and is involved in the regulation of cardiac rhythm and contractility, regulation of vascular tone, regulation of nociception, especially chronic pain, and contraction of the vas deferens during ejaculation , bladder contraction during urination, platelet aggregation, activation of macrophages, apoptosis, and neuron-glial interactions and other physiological processes.
- P2X receptors include seven homologous receptors: P2X1, P2X2, P2X3, P2X4, P2X5, P2X6 and P2X7, and three heterologous receptors: P2X2/3, P2X4/6, P2X1/5.
- P2X3 is a subtype of the P2X receptor family and is selectively expressed in dorsal root ganglia, spinal cord, and brain neurons of nerve endings, ie, primary sensory neurons of medium and small diameter.
- P2X3 and P2X2/3 expressed in primary sensory neurons plays an important role in acute injury, hyperalgesia, and hypersensitivity in rodents.
- Many studies have shown that the up-regulation of P2X3 receptor expression can lead to the formation of hyperalgesia, which is involved in pain signaling.
- P2X3 knockout mice exhibited reduced pain responses, and P2X3 receptor antagonists were shown to reduce nociception in models of pain and inflammatory pain.
- P2X3 is distributed in primary afferent nerves around the airways and is capable of regulating cough.
- Studies have shown that ATP released from damaged or inflamed tissue in the airway acts on P2X3 receptors in primary neurons, triggering depolarization and action potentials that transmit the impulse to cough, triggering coughing.
- Preclinical and clinical data strongly demonstrate that P2X3 receptors play an important role in cough reflex hypersensitivity, leading to chronic cough. By antagonizing binding to P2X3 receptors, the hypersensitivity of the cough reflex can be suppressed, thereby suppressing excessive coughing in patients with chronic cough.
- P2X3 is involved in the afferent pathway that controls the bladder volume reflex, and P2X3 knockout mice have significantly reduced urination frequency and significantly increased bladder capacity.
- P2X3 antagonists may be potential drugs for the treatment of overactive bladder and other related diseases.
- P2X3 antagonists can treat chronic obstructive pulmonary disease, pulmonary fibrosis, pulmonary hypertension or asthma, so P2X3 antagonists are also expected to become new drugs for the treatment of these diseases.
- P2X3 antagonists have shown great promise in multiple disease areas, therefore, the development of P2X3 antagonists is of great clinical significance.
- the invention provides a preparation method of imidazopyridine compounds and an intermediate thereof.
- the preparation method of the invention has mild conditions, stable process and simple operation, and is suitable for scale-up and industrial production.
- the present invention provides an intermediate as shown in formula I, formula II or formula III:
- the R 1 is selected from PG 1 or
- the R 2 is selected from halogen, carboxyl or
- the R 2a is selected from C 1 -C 6 alkyl or benzyl
- the R is selected from methyl or chlorine
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- the X is selected from H or Br.
- the halogen is Br or I, preferably Br.
- the R 2a is C 1 -C 6 alkyl; preferably, the R 2a is methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl or tert-butyl.
- the aforementioned intermediate represented by formula II is selected from any of the following intermediates:
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- the R 2 is selected from halogen, carboxyl or
- Said R 2a has the previously described definition.
- the present invention also provides a preparation method of the intermediate as shown in formula II-1, which comprises the following steps:
- Step 1 under the action of a metal amide compound or a metal alkyl compound, the intermediate shown in the formula II-1 is prepared by reacting the intermediate shown in the formula I-3 with the compound shown in 1;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- the R 2 is selected from halogen, carboxyl or
- Said R 2a has the previously described definition.
- the amino metal compound is lithium diisopropylamide, lithium bistrimethylsilylamide, potassium bistrimethylsilylamide, sodium bistrimethylsilylamide, preferably It is lithium diisopropylamide or bistrimethylsilylamino.
- the alkyl metal compound is methyl Grignard reagent, ethyl Grignard reagent, isopropyl Grignard reagent or alkyl lithium compound, preferably methyl lithium or n-butyl lithium .
- step 1 when the R 2 is halogen, the reaction is carried out under the action of a metal amide compound.
- step 1 when described R 2 is carboxyl or , the reaction is carried out under the action of a metal amide compound or a metal alkyl compound.
- the reaction can be carried out in a conventional organic solvent in the art
- the organic solvent includes but is not limited to diethyl ether, dichloromethane, toluene, 2-methyltetrahydrofuran or tetrahydrofuran, preferably Tetrahydrofuran.
- the reaction temperature of the reaction is -80 ⁇ 0°C, preferably -10 ⁇ 0°C or -80 ⁇ -60°C.
- the molar ratio of the compound represented by formula I to the compound represented by formula 1 is 1:1-1:1.6, preferably 1:1-1.2 or 1:1.5 ⁇ 1:1.6, more preferably 1:1.2 or 1:1.5.
- the reaction time of the reaction is 2-4 hours, preferably 2.5 hours.
- the reaction described in the step 1 when the reaction is carried out under the action of an alkyl lithium compound, the reaction described in the step 1 further includes a stabilizer, and the stabilizer is N,N,N',N'-tetramethyl Ethylenediamine.
- the present invention also provides a preparation method of the intermediate shown in formula I, and the preparation method of the intermediate shown in formula I comprises the following steps;
- Step 2 under the action of an organic base and a condensing agent, the intermediate shown in formula I is prepared by reacting the intermediate shown in formula I-2 with the compound shown in formula 2;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl.
- the reaction temperature of the reaction is 20-25°C.
- the organic base is selected from N,N-diisopropylethylamine.
- the condensing agent is 1-propyl phosphoric anhydride.
- the molar ratio of the intermediate represented by the formula I-2 to the compound represented by the formula 2 is 1:1 to 1:2, preferably 1:1.2.
- the molar ratio of the intermediate shown in formula I-2 to the compound of the organic base is 1:2 ⁇ 1:4, preferably 1:2.8 ⁇ 1:3.2, more preferably The ground is 1:3.
- the molar ratio of the intermediate represented by formula I-2 to the condensing agent is 1:1 to 1:2, preferably 1:1.5.
- the reaction time of the reaction is 14-18 hours, preferably 16 hours.
- the reaction is carried out in dichloromethane.
- the preparation method of the intermediate shown in the formula I further includes the preparation method of the intermediate shown in the formula I-2.
- the preparation method includes the following steps:
- Step 3 prepare the intermediate shown in formula I-1 by subjecting the compound shown in formula 3 to reduction reaction;
- Step 4 under the action of inorganic base, prepare the intermediate shown in formula I-2 by hydrolyzing the intermediate shown in formula I-1;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl.
- the reaction further includes hydrogen.
- the reaction also includes palladium on carbon.
- the reaction temperature of the reaction is 20-25°C.
- the pressure of the hydrogen in the reaction is 0.8-1.2 atm, preferably 1 atm.
- the mass ratio of the palladium carbon to the compound 3 is 1:18 ⁇ 1:22, preferably 1:20.
- the reaction time of the reaction is 22-26 hours, preferably 24 hours.
- the inorganic base is selected from lithium hydroxide, sodium hydroxide or potassium hydroxide, preferably lithium hydroxide.
- the reaction temperature of the reaction is 20-25°C.
- the molar ratio of the intermediate shown in formula I-1 to the inorganic base is 1:1 to 1:4, preferably 1:2.
- the reaction time of the reaction is 14-18 hours, preferably 16 hours.
- the reaction is carried out in methanol.
- the present invention also provides a method for preparing the intermediate shown in formula II-1A, wherein the intermediate shown in formula II-1A is prepared from the intermediate shown in formula II-1, and the The preparation method of the intermediate shown in formula II-1A comprises the following steps;
- Step 5 under the action of a catalyst and an organic base, the intermediate shown in formula II-1A is obtained by reacting the intermediate shown in formula II-1 with carbon monoxide and the compound shown in formula 4;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- the R 2 is halogen
- Said R 2a has the previously described definition.
- the catalyst transition metal catalyst includes palladium metal catalyst, ruthenium metal catalyst, iron metal catalyst, cobalt metal catalyst, nickel metal catalyst, rhodium metal catalyst, preferably palladium metal catalyst metal catalyst;
- the palladium catalyst comprises tetrakis(triphenylphosphine) palladium, palladium acetate, bistriphenylphosphonium palladium dichloride, 1,1-bis(diphenylphosphonium)ferrocene palladium chloride, [ 1,1'-bis(diphenylphosphine)ferrocene]dichloropalladium dichloromethane complex, tris(dibenzylideneacetone)dipalladium, bis(dibenzylideneacetone)palladium, 1, 4-bis(diphenylphosphinobutane) palladium dichloride, more preferably, the palladium metal catalyst is 1,1-bis(diphenylphosphonium)ferrocene palladium chloride.
- the organic base includes but is not limited to triethylamine or N,N-diisopropylethylamine, preferably triethylamine.
- the reaction is carried out in pressurized carbon monoxide, and the pressure of the carbon monoxide is 40-50 psi, preferably 45 psi.
- the reaction temperature of the reaction is 55-65°C.
- the reaction time of the reaction is 22-26 hours, preferably 24 hours.
- the present invention also provides a method for preparing the intermediate shown in formula II-1A, wherein the intermediate shown in formula II-1A is prepared from the intermediate shown in formula II-1, and the The preparation method of the intermediate shown in formula II-1A comprises the following steps;
- Step 6 under the action of a base, the intermediate shown in formula II-1A is obtained by reacting the intermediate shown in formula II-1 with the compound shown in formula 5;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- R 2 is carboxyl
- Said R 2a has the previously described definition.
- the molar ratio of the intermediate represented by the formula II-1 to the compound represented by the formula 5 is 1:1 to 1:2, preferably 1:1.5.
- the reaction temperature of the reaction is 20-25°C.
- the alkali is sodium bicarbonate.
- step 6 the reaction is carried out in N,N-dimethylformamide.
- the reaction time is 22-26 hours, preferably 24 hours.
- the present invention also provides a preparation method of the intermediate shown in formula II-2, and the preparation method of the intermediate shown in formula II-2 comprises the following steps:
- Step 7 Removing the intermediate protecting group PG 1 shown in formula II-1A to obtain a deprotected product; the deprotected product is reacted with the compound shown in formula 6 under the action of a base, Obtain the intermediate as shown in formula II-2;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl;
- Said R 2a has the previously described definition.
- the molar ratio of the intermediate represented by the formula II-1A to the compound represented by the formula 6 is 1:1 to 1:2, preferably 1:1.5.
- step 7 the removal of the intermediate protecting group PG 1 shown in formula II-1A is carried out under the action of hydrochloric acid.
- step 7 the removal of the intermediate protecting group PG 1 shown in formula II-1A is carried out under the reaction with hydrogen.
- the reaction temperature of the reaction is 20-25°C.
- the base includes but is not limited to triethylamine or N,N-diisopropylethylamine, preferably triethylamine.
- step 7 the deprotection reaction is carried out in 1,4-dioxane.
- the reaction time of the deprotection group is 2 to 4 hours, preferably 3 hours.
- step 7 the reaction of the deprotected product with the compound shown in formula 6 is carried out in dichloromethane under the action of a base.
- the reaction time of the reaction of the deprotected product with the compound shown in formula 6 under the action of a base is 10-14 hours, preferably 12 hours.
- the present invention also provides a method for preparing the intermediate shown in formula II-3, wherein the intermediate shown in formula II-3 is prepared from the intermediate shown in formula II-2, and the The preparation method of the intermediate shown in formula II-3 comprises the following steps:
- Step 8 react the intermediate shown in formula II-2 with a bromination reagent to obtain the intermediate shown in formula II-3;
- R 2a has the definition as previously described.
- the bromination reagent includes N-bromosuccinimide, dibromohydantoin, pyridine tribromide, liquid copper bromide or liquid bromide, preferably liquid bromine.
- the molar ratio of the intermediate shown in formula II-2 to the bromination reagent is 1:1 to 1:3, preferably 1:1.2.
- the reaction is carried out in dichloromethane.
- the reaction temperature of the reaction is 20-25°C.
- the reaction time of the reaction is 0.5 to 2 hours, preferably 1 hour.
- the present invention also provides a method for preparing the intermediate shown in formula III, the intermediate shown in formula III is prepared from the intermediate shown in formula II-3, and the intermediate shown in formula III is prepared
- the preparation method of the intermediate shown comprises the following steps:
- Step 9 by reacting the intermediate shown in formula II-3 with the compound shown in formula 7 to obtain the intermediate shown in formula III;
- Said R 2a has the above-mentioned definition
- the R3 is selected from methyl or chlorine.
- the molar ratio of the intermediate represented by the formula II-3 and the compound represented by the formula 7 in the reaction is 1:1 to 1:3, preferably 1:2.
- the reaction can be carried out in a conventional organic solvent in the art
- the organic solvent includes but is not limited to acetonitrile, dimethyl sulfoxide, ethanol, N,N-dimethylacetamide, N,N-dimethylformamide, N-methylpyrrolidone, 1,4-dioxane, n-propanol or n-butanol, preferably acetonitrile.
- the reaction temperature of the reaction is 110-130°C, preferably 120°C.
- the reaction time of the reaction is 22-26 hours, preferably 24 hours.
- the present invention also provides a preparation method of the imidazopyridine compound shown in formula IV, and the preparation method of the imidazopyridine compound shown in formula IV comprises the following steps:
- Step 10 react the intermediate shown in formula III with methylamine to obtain the compound shown in formula IV;
- Said R 2a has the above-mentioned definition
- the R3 is selected from methyl or chlorine.
- the molar ratio of the intermediate shown in formula III to methylamine is 1:4 to 1:6, preferably 1:5.
- the reaction temperature of the reaction is 20-25°C.
- the reaction is carried out in methanol.
- the reaction time of the reaction is 4 to 6 hours, preferably 5 hours.
- the present invention also provides a preparation method of the intermediate shown in formula 3, and the preparation method of the intermediate shown in formula 3 comprises the following steps;
- Step 11 The intermediate shown in formula 3-1 is reacted with Dess-Martin oxidant to obtain the intermediate shown in formula 3-2; the intermediate shown in formula 3-2 is shown in formula 8 The compound is reacted to obtain the intermediate shown in formula 3;
- the PG 1 is selected from tert-butoxycarbonyl, benzyloxycarbonyl or benzyl.
- the molar ratio of the intermediate shown in formula 3-1 to the Dess-Martin oxidant is 1:1.2.
- the reaction temperature of the intermediate represented by the formula 3-1 and the Dess-Martin oxidant is 20-25°C.
- the reaction time between the intermediate shown in formula 3-1 and the Dess-Martin oxidant is 1 to 3 hours, preferably 2 hours.
- step 11 the reaction of the intermediate shown in formula 3-1 with Dess-Martin oxidant is carried out in dichloromethane.
- the molar ratio of the intermediate shown in formula 3-2 to compound 8 is 1:1 to 1:2, preferably 1:1.1.
- reaction temperature of the intermediate represented by formula 3-1 and compound 8 is 20-25°C.
- the reaction time between the intermediate represented by formula 3-1 and compound 8 is 14-18 hours, preferably 16 hours.
- step 11 the reaction of the intermediate shown in formula 3-1 with Dess-Martin oxidant is carried out in dichloromethane.
- C 1 -C 6 alkyl is understood to mean a straight-chain or branched saturated monovalent hydrocarbon radical having 1, 2, 3, 4, 5 or 6 carbon atoms.
- the alkyl group is, for example, methyl, ethyl, propyl, butyl, pentyl, hexyl, isopropyl, isobutyl, sec-butyl, tert-butyl, isopentyl, 2-methylbutyl, 1-methylbutyl, 1-ethylpropyl, 1,2-dimethylpropyl, neopentyl, 1,1-dimethylpropyl, 4-methylpentyl, 3-methylpentyl , 2-methylpentyl, 1-methylpentyl, 2-ethylbutyl, 1-ethylbutyl, 3,3-dimethylbutyl, 2,2-dimethylbutyl, 1,1-dimethylbutyl, 2,3-dimethylbutyl, 1,3-dimethylbut
- metal alkyl compound refers to an organic compound in which a metal atom is directly bonded to an alkyl carbon atom to form a bond.
- the alkyl groups include, but are not limited to, alkyl or cycloalkyl groups, such as C1 - C6 alkyl groups.
- the metal atoms include, but are not limited to, potassium, sodium, lithium, magnesium, or aluminum.
- the alkyl metal compounds include but are not limited to Grignard reagents, alkyl lithium compounds.
- amino metal compound refers to a compound formed by the combination of a metal atom and an amino group through covalent or coordinate bonds
- amino amino group refers to primary (ie -NH 2 ), secondary (ie -NRH) and tertiary (i.e.
- the R includes but is not limited to a C 1 -C 6 alkyl, cycloalkyl or silicon group
- the metal atom includes but is not limited to potassium, sodium, lithium or magnesium
- the Amino metal compounds include but are not limited to lithium diisopropylamide, lithium bis-trimethylsilyl amide, potassium bis-trimethylsilyl amide, sodium bis-trimethylsilyl amide, sodium amide, potassium amide, Lithium amide.
- halo or halogen is fluorine, chlorine, bromine and iodine.
- catalyst refers to any substance or agent that can affect, induce, increase or promote the reactivity or reaction of a compound.
- transition metal catalyst refers to any metal having an electron in its d orbital, such as a metal selected from Groups 3-12 of the Periodic Table of the Elements or the lanthanides.
- Catalysts useful in the process of the present invention include atoms, ions, salts or complexes of transition metals from Groups 8-11 of the Periodic Table.
- Groups 3-12 of the Periodic Table means the Periodic Table groups numbered according to the IUPAC method.
- transition metals of Groups 8-11 include iron, ruthenium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver and gold.
- Such catalysts include but are not limited to CuI, CuCl, CuBr, CuBr2, Cu2Cl2 , Cu2O, Cu, Pd2 ( dba )2 , Pd/C, PdCl2 , Pd(OAc )2 , ( CH3CN ) ) 2 PdCl 2 , Pd[P(C 6 H 5 ) 3 ] 4 , NiCl 2 [P(C 6 H 5 )] 2 and Ni(COD) 2 .
- R2a -I refers to an iodine reagent containing R2a .
- the structures of the compounds of the present invention are determined by nuclear magnetic resonance (NMR) and/or mass spectrometry (MS).
- NMR nuclear magnetic resonance
- MS mass spectrometry
- the units of NMR shifts are 10-6 (ppm).
- the solvents for NMR measurement are deuterated dimethyl sulfoxide, deuterated chloroform, deuterated methanol, etc., and the internal standard is tetramethylsilane (TMS).
- M molar concentration, such as 1M hydrochloric acid means 1mol/L hydrochloric acid solution
- DIPEA can also be written as DIEA, diisopropylethylamine, that is, N,N-diisopropylethylamine
- TMEDA N,N,N',N'-Tetramethylethylenediamine
- the synthetic route of the target intermediate A is as follows:
- reaction solution was slowly poured into a saturated solution of sodium bicarbonate (1 L) and stirred for 0.5 h, and the organic phase was collected after filtration and separation. The organic phase was washed with saturated sodium bicarbonate solution (1L ⁇ 2), dried over anhydrous sodium sulfate and concentrated under reduced pressure to give (R)-tert-butyl 2-formylmorpholine-4-carboxylate (A) as a colorless oil. -2) (99 g, 100% yield).
- reaction solution was concentrated to dryness under reduced pressure, and the residue was purified by silica gel column chromatography to give (S)-2-(3-methoxy-3-oxoprop-1-en-1-yl)morpholine- tert-Butyl 4-carboxylate (A-3) (75 g, 60.1% yield).
- the third step synthesis of (S)-2-(3-methoxy-3-oxypropyl) morpholine-4-carboxylic acid tert-butyl ester (A-4)
- the fourth step the synthesis of (S)-3-(4-(tert-butoxycarbonyl)morpholin-2-yl)propionic acid (A-5)
- Step 5 Synthesis of (S)-2-(3-(methoxy(methyl)amino)-3-oxypropyl)morpholine-4-carboxylic acid tert-butyl ester (A)
- the synthetic route of the target intermediate B is as follows:
- the synthetic route of the target intermediate B is as follows:
- the synthetic route of the target intermediate B is as follows:
- reaction solution was concentrated to dryness under reduced pressure, dichloromethane (820 mL) was added to the residue, the temperature of the reaction solution was adjusted to 0-5 ° C, triethylamine (48.1 g, 475 mmol) was slowly added dropwise, and then methyl chloroformate was added. (26.9 g, 285 mmol). Adjust the reaction temperature to 20-25 °C, the reaction solution was stirred at 20-25 °C for 12h, TLC showed that the reaction was complete.
- the first step Synthesis of (S)-2,3,5-trifluoro-4-(3-(4-(methoxycarbonyl)morpholin-2-yl)propionyl)benzoic acid (C-2)
- reaction solution was concentrated to dryness under reduced pressure, dichloromethane (72 mL) was added to the residue, the temperature of the reaction solution was adjusted to 0-5 ° C, triethylamine (6.87 g, 67.9 mmol) was slowly added dropwise, and then methyl chloroformate was added. Ester (2.36 g, 29.1 mmol). The reaction temperature was adjusted to 20-25 °C, and the reaction solution was stirred at 20-25 °C for 12 h.
- the synthetic route of the target intermediate E is as follows:
- the synthetic route of target compound 1 is as follows:
- reaction solution was concentrated to dryness under reduced pressure, and purified by silica gel column chromatography to obtain a yellow solid (S)-2-((2-(2,3,6-trifluoro-4-(methylcarbamoyl)phenyl)-7 - Methylimidazo[1,2-a]pyridin-3-yl)methyl)morpholine-4-carboxylic acid methyl ester (1) (7.7 g, 97% yield).
- the synthetic route of target compound 2 is as follows:
- reaction solution was concentrated to dryness under reduced pressure, and purified by silica gel column chromatography to obtain a yellow solid (S)-2-((2-(2,3,6-trifluoro-4-(methylcarbamoyl)phenyl)-7 -chloroimidazo[1,2-a]pyridin-3-yl)methyl)morpholine-4-carboxylic acid methyl ester (2) (27 g, 90% yield).
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
本发明提出了一种如式IV所示的咪唑并吡啶类化合物的制备方法及其如式I、式II或式III所示的中间体。所述如式IV所示的咪唑并吡啶类化合物能够拮抗P2X3受体,具有抑制咳嗽与镇痛的作用。
Description
优先权信息
本申请请求2021年01月22日向中国国家知识产权局提交的、专利申请号为202110090342.7的专利申请的优先权和权益,并且通过参照将其全文并入此处。
本发明涉及咪唑并吡啶类化合物的制备方法及其中间体。
P2X受体是一种非选择性的ATP门控离子通道受体,即嘌呤能受体,可与胞外的ATP结合,这些ATP主要来源于受损或发炎的组织。该受体广泛表达在神经、免疫、心血管、骨骼、胃肠、呼吸、内分泌等系统,并参与心律和收缩力调节、血管张力的调节、伤害感受尤其是慢性疼痛的调节、射精时输精管收缩、排尿期间膀胱的收缩、血小板的聚集、巨噬细胞的激活、细胞凋亡以及神经元-神经胶质相互作用等多种生理过程。上述P2X受体包括七种同源性受体:P2X1、P2X2、P2X3、P2X4、P2X5、P2X6和P2X7,三种异源性受体:P2X2/3、P2X4/6、P2X1/5。
P2X3是P2X受体家族的一个亚型,选择性地表达在神经末梢的背根神经节、脊髓和脑神经元中,即中小直径的初级感觉神经元中。
大量研究表明,在初级感觉神经元中表达的P2X3和P2X2/3的激活对啮齿类动物的急性损伤、痛觉过敏和超敏反应起重要作用。许多研究表明,P2X3受体表达上调可导致痛觉过敏形成,参与疼痛的信号传递。P2X3基因敲除小鼠表现出疼痛反应减轻,在疼痛和炎性疼痛模型中,P2X3受体拮抗剂显示出减轻伤害感受的作用。
P2X3分布于气道周围的初级传入神经中,能够调节咳嗽。研究表明,气道受损或发炎的组织释放的ATP作用于初级神经元的P2X3受体,触发去极化和动作电位,这些电位传递引起咳嗽冲动,引发咳嗽。临床前和临床数据有力地证明了P2X3受体在咳嗽反射超敏反应中起重要作用,从而导致慢性咳嗽。通过拮抗与P2X3受体结合,可以抑制咳嗽反射的超敏反应,从而抑制慢性咳嗽患者的过度咳嗽。
据报道,P2X3涉及控制膀胱容量反射的传入通路,P2X3基因敲除小鼠的排尿频率显著降低、膀胱容量显著增加。因此,抑制P2X3受体拮抗剂与P2X3受体结合具有治疗储尿和排尿障碍的病症,如膀胱过度活动症的作用。因此,P2X3拮抗剂可能是治疗膀胱过动症等相关疾病的潜在药物。
另外,有研究表明P2X3拮抗剂可以治疗慢性阻塞性肺病,肺纤维化,肺动脉高压或者是哮喘,因此P2X3拮抗剂也有望成为治疗上述疾病的新药物。
P2X3拮抗剂在多个疾病领域显示出巨大前景,因此,开发P2X3拮抗剂对于临床具有重要意义。
发明内容
本发明提供了一种咪唑并吡啶类化合物的制备方法及其中间体。本发明的制备方法条件温和,工艺稳定,操作简单,适合放大以及工业化生产。
本发明提供了一种如式I、式II或式III所示的中间体:
其中,
所述R
2a选自C
1-C
6烷基或苄基;
所述R
3选自甲基或氯;
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述X选自H或Br。
在本发明的一优选实施方案中,当R
2为卤素时,所述卤素为Br或I,较佳地为Br。
在本发明的一优选实施方案中,所述R
2a为C
1-C
6烷基;较佳地,所述R
2a为甲基、乙基、正丙基、异丙基、正丁基、异丁基、仲丁基或叔丁基。
在本发明的一优选实施方案中,如前文所述的如式II所示的中间体选自下列任一中间体:
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述R
2a具有前文所述的定义。
本发明还提供了一种如式II-1所示的中间体的制备方法,其包括以下步骤:
步骤1:在氨基金属化合物或烷基金属化合物的作用下,通过将如式I-3所示的中间体与如1所示的化合物进行反应制备如式II-1所示的中间体;
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述R
2a具有前文所述的定义。
所述的步骤1中,所述氨基金属化合物为二异丙基氨基锂、双三甲基硅基氨基锂、双三甲基硅基氨基钾、双三甲基硅基氨基钠,较佳地为二异丙基氨基锂或双三甲基硅基氨基。
所述的步骤1中,所述烷基金属化合物为甲基格氏试剂、乙基格氏试剂、异丙基格氏试剂或烷基锂化合物,较佳地为甲基锂或正丁基锂。
所述的步骤1中,当所述的R
2为卤素时,所述反应在氨基金属化合物的作用下进行。
所述的步骤1中,所述的反应可以在本领域常规的有机溶剂中进行,所述有机溶剂包括但不限于乙醚、二氯甲烷、甲苯、2-甲基四氢呋喃或四氢呋喃,较佳地为四氢呋喃。
所述的步骤1中,所述反应的反应温度为-80~0℃,较佳地为-10~0℃或者-80~-60℃。
所述的步骤1中,所述的如式I所示的化合物与如式1所示的化合物的摩尔比为1:1~1:1.6,较佳地为1:1~1.2或者1:1.5~1:1.6,更佳地为1:1.2或1:1.5。
所述的步骤1中,所述反应的反应时间为2~4小时,较佳地为2.5小时。
所述的步骤1中,当所述反应在烷基锂化合物作用下进行时,步骤1所述的反应还包括稳定剂,所述稳定剂为N,N,N',N'-四甲基乙二胺。
本发明还提供了一种如式I所示的中间体的制备方法,所述的如式I所示的中间体的制备方法包括以下步骤;
步骤2:在有机碱和缩合剂作用下,通过将如式I-2所示的中间体与如式2所示的化合物进行反应制备如式I所示的中间体;
其中,所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基。
所述的步骤2中,所述反应的反应温度为20~25℃。
所述的步骤2中,所述有机碱选自N,N-二异丙基乙胺。
所述的步骤2中,所述缩合剂为1-丙基磷酸酐。
所述的步骤2中,所述如式I-2所示的中间体与如式2所示的化合物的摩尔比为1:1~1:2,较佳地为1:1.2。
所述的步骤2中,所述如式I-2所示的中间体与有机碱的化合物的摩尔比为1:2~1:4,较佳地为1:2.8~1:3.2,更佳地为1:3。
所述的步骤2中,所述如式I-2所示的中间体与缩合剂的摩尔比为1:1~1:2,较佳地为1:1.5。
所述的步骤2中,所述反应的反应时间为14~18小时,较佳地为16小时。
所述的步骤2中,所述反应在二氯甲烷中进行。
根据本发明的实施例,所述的如式I所示的中间体的制备方法还包括如式I-2所示中间体的制备方法,所述的如式I-2所示的中间体的制备方法包括以下步骤:
步骤3:通过将如式3所示的化合物进行还原反应制备如式I-1所示的中间体;
步骤4:在无机碱的作用下,通过将如式I-1所示的中间体水解制备如式I-2所示的中间体;
其中,所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基。
所述的步骤3中,所述反应还包括氢气。
所述的步骤3中,所述反应还包括钯碳。
所述的步骤3中,所述反应的反应温度为20~25℃。
所述的步骤3中,所述反应中氢气的压力为0.8~1.2个大气压,较佳地为1个大气压。
所述的步骤3中,所述钯碳与化合物3的质量比为1:18~1:22,较佳地为1:20。
所述的步骤3中,所述反应的反应时间为22~26小时,较佳地为24小时。
所述的步骤4中,所述无机碱选自氢氧化锂、氢氧化钠或氢氧化钾,较佳地为氢氧化锂。
所述的步骤4中,所述反应的反应温度为20~25℃。
所述的步骤4中,所述如式I-1所示的中间体与无机碱的摩尔比为1:1~1:4,较佳地为1:2。
所述的步骤4中,所述反应的反应时间为14~18小时,较佳地为16小时。
所述的步骤4中,所述反应在甲醇中进行。
本发明还提供了一种如式II-1A所示的中间体的制备方法,所述的如式II-1A所示的中间体由如式II-1所示的中间体制备得到,所述的如式II-1A所示的中间体的制备方法包括以下步骤;
步骤5:在催化剂和有机碱的作用下,通过将如式II-1所示的中间体与一氧化碳和式4所示的化合物进行反应得到如式II-1A所示的中间体;
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述R
2为卤素;
所述R
2a具有前文所述的定义。
所述的步骤5中,所述的催化剂过渡金属催化剂,所述过渡金属催化剂包括钯金属催化剂、钌金属催化剂、铁金属催化剂、钴金属催化剂、镍金属催化剂、铑金属催化剂,较佳地为钯金属催化剂;
较佳地,所述钯催化剂包括四(三苯基膦)钯、醋酸钯、双三苯基磷二氯化钯、1,1-双(二苯基磷)二茂铁氯化钯、[1,1'-双(二苯基膦)二茂铁]二氯化钯二氯甲烷络合物、三(二亚苄基丙酮)二钯、双(二亚芐基丙酮)钯、1,4-双(二苯基膦丁烷)二氯化钯,更佳地所述钯金属催化剂为1,1-双(二苯基磷)二茂铁氯化钯。
所述的步骤5中,所述有机碱包括但不限于三乙胺或N,N-二异丙基乙胺,较佳地为三乙胺。
所述的步骤5中,所述反应在加压的一氧化碳中进行,所述一氧化碳的压力为40~50psi,较佳地为45psi。
所述的步骤5中,所述反应的反应温度为55-65℃。
所述的步骤5中,所述反应的反应时间为22~26小时,较佳地为24小时。
本发明还提供了一种如式II-1A所示的中间体的制备方法,所述的如式II-1A所示的中间体由如式II-1所示的中间体制备得到,所述的如式II-1A所示的中间体的制备方法包括以下步骤;
步骤6:在碱的作用下,通过将如式II-1所示的中间体与式5所示的化合物进行反应得到如式II-1A所示的中间体;
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述R
2为羧基;
所述R
2a具有前文所述的定义。
所述的步骤6中,所述如式II-1所示的中间体与如式5所示的化合物的摩尔比为1:1~1:2,较佳地为1:1.5。
所述的步骤6中,所述反应的反应温度为20~25℃。
所述的步骤6中,所述碱为碳酸氢钠。
所述的步骤6中,所述反应在N,N-二甲基甲酰胺中进行。
所述的步骤6中,所述的反应时间为22~26小时,较佳地为24小时。
本发明还提供了一种如式II-2所示的中间体的制备方法,所述的如式II-2所示的中间体的制备方法包括以下步骤:
步骤7:脱去如式II-1A所示的中间体保护基PG
1,得到脱保护基的产物;所述脱保护基的产物在碱的作用下与如式6所示的化合物进行反应,得到如式II-2所示的中间体;
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基;
所述R
2a具有前文所述的定义。
所述的步骤7中,所述如式II-1A所示的中间体与如式6所示的化合物的摩尔比为1:1~1:2,较佳地为1:1.5。
所述的步骤7中,所述脱去如式II-1A所示的中间体保护基PG
1在盐酸的作用下进行。
所述的步骤7中,所述脱去如式II-1A所示的中间体保护基PG
1在与氢气的反应下进行。
所述的步骤7中,所述反应的反应温度为20~25℃。
所述的步骤7中,所述的碱包括但不限于三乙胺或N,N-二异丙基乙胺,较佳地为三乙胺。
所述的步骤7中,所述的脱保护基的反应在1,4-二氧六环中进行。
所述的步骤7中,所述的脱保护基的反应时间为2~4小时,较佳地为3小时。
所述的步骤7中,所述的脱保护基的产物在碱的作用下与如式6所示的化合物的反应在二氯甲烷中进行。
所述的步骤7中,所述的脱保护基的产物在碱的作用下与如式6所示的化合物的反应的反应时间为10~14小时,较佳地为12小时。
本发明还提供了一种如式II-3所示的中间体的制备方法,所述的如式II-3所示的中间体由如式II-2所示的中间体制备得到,所述的如式II-3所示的中间体的制备方法包括以下步骤:
步骤8:将如式II-2所示的中间体与溴化试剂反应,得到如式II-3所示的中间体;
其中,R
2a具有如前文所述的定义。
所述的步骤8中,所述的溴化试剂包括N-溴代丁二酰亚胺、二溴海因、三溴化吡啶、液溴化铜或液溴,较佳地为液溴。
所述的步骤8中,所述如式II-2所示的中间体与溴化试剂的摩尔比为1:1~1:3,较佳地为1:1.2。
所述的步骤8中,所述的反应在二氯甲烷中进行。
所述的步骤8中,所述反应的反应温度为20~25℃。
所述的步骤8中,所述反应的反应时间为0.5~2小时,较佳地为1小时。
本发明还提供了一种如式III所示的中间体的制备方法,所述的如式III所示的中间体由如式II-3所示的中间体制备得到,所述的如式III所示的中间体的制备方法包括以下步骤:
步骤9:通过将如式II-3所示的中间体与如式7所示的化合物进行反应得到如式III所示的中间体;
其中,
所述R
2a具有前文所述的定义;
所述R
3选自甲基或氯。
所述的步骤9中,所述反应中如式II-3所示的中间体与所述如式7所示的化合物摩尔比为1:1~1:3,较佳地为1:2。
所述的步骤9中,所述的反应可以在本领域常规的有机溶剂中进行,所述有机溶剂包括但 不限于乙腈、二甲基亚砜、乙醇、N,N-二甲基乙酰胺、N,N-二甲基甲酰胺、N-甲基吡咯烷酮、1,4-二氧六环、正丙醇或正丁醇,较佳地为乙腈。
所述的步骤9中,所述反应的反应温度为110~130℃,较佳地为120℃。
所述的步骤9中,所述反应的反应时间为22~26小时,较佳地为24小时。
本发明还提供了一种如式IV所示的咪唑并吡啶化合物的制备方法,所述的如式IV所示的咪唑并吡啶化合物的制备方法包括以下步骤:
步骤10:将如式III所示的中间体与甲胺进行反应,得到如式IV所示的化合物;
其中,
所述R
2a具有前文所述的定义;
所述R
3选自甲基或氯。
所述的步骤10中,所述如式III所示的中间体与甲胺的摩尔比为1:4~1:6,较佳地为1:5。
所述的步骤10中,所述反应的反应温度为20~25℃。
所述的步骤10中,所述反应在甲醇中进行。
所述的步骤10中,所属反应的反应时间为4~6小时,较佳地为5小时。
本发明还提供了一种如式3所示的中间体的制备方法,所述的如式3的中间体的制备方法包括以下步骤;
步骤11:将如式3-1所示的中间体与戴斯-马丁氧化剂反应,得到如式3-2所示的中间体;将如式3-2所示的中间体与式8所示的化合物进行反应,得到如式3所示的中间体;
其中,
所述PG
1选自叔丁氧基羰基、苄氧基羰基或苄基。
所述的步骤11中,所述如式3-1所示的中间体与戴斯-马丁氧化剂的摩尔比为1:1.2。
所述的步骤11中,所述如式3-1所示的中间体与戴斯-马丁氧化剂的反应温度为20-25℃。
所述的步骤11中,所述如式3-1所示的中间体与戴斯-马丁氧化剂的反应时间为1~3小时,较佳地为2小时。
所述的步骤11中,所述如式3-1所示的中间体与戴斯-马丁氧化剂反应在二氯甲烷中进行。
所述的步骤11中,所述如式3-2所示的中间体与化合物8的摩尔比为1:1~1:2,较佳地为1:1.1。
所述的步骤11中,所述如式3-1所示的中间体与化合物8的反应温度为20-25℃。
所述的步骤11中,所述如式3-1所示的中间体与化合物8的反应时间为14~18小时,较佳地为16小时。
所述的步骤11中,所述如式3-1所示的中间体与戴斯-马丁氧化剂反应在二氯甲烷中进行。
术语和定义
除非另有说明,用于本发明申请,包括本申请说明书和权利要求书中记载的术语和定义如下。
术语“C
1-C
6烷基”应理解为表示具有1、2、3、4、5或6个碳原子的直链或支链饱和一价烃基。所述烷基是例如甲基、乙基、丙基、丁基、戊基、己基、异丙基、异丁基、仲丁基、叔丁基、异戊基、2-甲基丁基、1-甲基丁基、1-乙基丙基、1,2-二甲基丙基、新戊基、1,1-二甲基丙基、4-甲基戊基、3-甲基戊基、2-甲基戊基、1-甲基戊基、2-乙基丁基、1-乙基丁基、3,3-二甲基丁基、2,2-二甲基丁基、1,1-二甲基丁基、2,3-二甲基丁基、1,3-二甲基丁基或1,2-二甲基丁基等或它们的异构体。特别地,所述基团具有1、2或3个碳原子(“C
1-C
3烷基”),例如甲基、乙基、正丙基或异丙基。
术语“烷基金属化合物”,是指金属原子与烷基碳原子直接相连成键而形成的有机化合物。所述烷基包括但不限于烷基或环烷基,例如C
1-C
6烷基。所述金属原子包括但不限于钾、钠、锂、镁或铝。所述烷基金属化合物包括但不限于格氏试剂、烷基锂化合物。
术语“氨基金属化合物”,是指金属原子与氨基基团通过共价键或配位键结合形成的化合物,所述“氨基”氨基是指伯(即–NH
2)、仲(即–NRH)和叔(即–NRR)胺,所述R包括但不限于 C
1-C
6的烷基、环烷基或硅基,所述金属原子包括但不限于钾、钠、锂或镁,所述氨基金属化合物包括但不限于二异丙基氨基锂、双三甲基硅基胺基锂、双三甲基硅基胺基钾、双三甲基硅基胺基钠、氨基钠、氨基钾、氨基锂。
术语“卤代基”或“卤素”为氟、氯、溴和碘。
术语“催化剂”是指可以影响,诱导,增加或促进化合物反应性或反应的任何物质或试剂。
术语“过渡金属催化剂”是指在其d轨道上具有电子的任何金属,例如选自元素周期表的3-12族或镧系元素的金属。可用于本发明方法的催化剂包括来自周期表第8-11族的过渡金属的原子,离子,盐或配合物。“元素周期表的3-12族”是指根据IUPAC方法编号的周期表族。因此,第8-11族的过渡金属包括铁、钌、钴、铑、铱、镍、钯、铂、铜,银和金。这种催化剂包括不限于CuI、CuCl、CuBr、CuBr
2、Cu
2Cl
2、Cu
2O、Cu、Pd
2(dba)
2、Pd/C、PdCl
2、Pd(OAc)
2、(CH
3CN)
2PdCl
2、Pd[P(C
6H
5)
3]
4、NiCl
2[P(C
6H
5)]
2和Ni(COD)
2。
术语“R
2a-I”,是指含有R
2a的碘试剂。
在本申请中,“任选的”或“任选地”表示随后描述的事件或状况可能发生也可能不发生,且该描述同时包括该事件或状况发生和不发生的情况。例如,“任选地被取代的芳基”表示芳基被取代或未被取代,且该描述同时包括被取代的芳基与未被取代的芳基。
下面将结合实施例对本发明的方案进行解释。本领域技术人员将会理解,下面的实施例仅用于说明本发明,而不应视为限定本发明的范围。实施例中未注明具体技术或条件的,按照本领域内的文献所描述的技术或条件或者按照产品说明书进行。所用试剂或仪器未注明生产厂商者,均为可以通过市购获得的常规产品。
如无特别说明,本发明的化合物均是通过核磁共振(NMR)和/或质谱(MS)来确定其结构的。NMR位移的单位为10
-6(ppm)。NMR测定的溶剂为氘代二甲基亚砜、氘代氯仿、氘代甲醇等,内标为四甲基硅烷(TMS)。
本发明的缩写定义如下:
M:摩尔浓度,如1M盐酸表示1mol/L盐酸溶液
DIPEA:也可写为DIEA,二异丙基乙胺,亦即N,N-二异丙基乙胺
DMF:N,N-二甲基甲酰胺
DCM:二氯甲烷
Et
3N:三乙胺
Dess-Martin:戴斯-马丁氧化剂
T
3P:1-丙基磷酸酐
LDA:二异丙基氨基锂
n-BuLi:正丁基锂
TMEDA:N,N,N',N'-四甲基乙二胺
NaHCO
3:碳酸氢钠
THF:四氢呋喃
Pd(dppf)Cl
2:1,1-双(二苯基磷)二茂铁氯化钯
LC-MS:液质联用色谱
TLC:薄层色谱
制备1:中间体(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)的制备
目标中间体A的合成路线如下所示:
第一步:(R)-2-甲酰基吗啉-4-羧酸叔丁酯(A-2)的合成
在2L三口瓶中加入(R)-2-羟甲基吗啉-4-甲酸叔丁酯(A-1)(100g,460mmol)、二氯甲烷(1L)。调节反应温度至0-5℃,缓慢分批加入戴斯-马丁氧化剂(234g,552mmol)同时将反应温度维持在0-5℃,反应继续在0-5℃下搅拌0.5h。将反应温度调节至20-25℃并且继续搅拌2h, TLC显示原料反应完全。将反应液缓慢倒入饱和溶液碳酸氢钠(1L)中并且搅拌0.5h,过滤、分液后收集有机相。有机相用饱和碳酸氢钠溶液(1L×2)洗涤,经过无水硫酸钠干燥并且减压下浓缩得到无色油状(R)-2-甲酰基吗啉-4-羧酸叔丁酯(A-2)(99g,产率100%)。
第二步:(S)-2-(3-甲氧基-3-氧代丙-1-烯-1-基)吗啉-4-羧酸叔丁酯(A-3)的合成
在2L三口瓶中加入(R)-2-甲酰基吗啉-4-羧酸叔丁酯(A-2)(99g,460mmol)、二氯甲烷(1L)。调节反应温度至20-25℃,缓慢分批加入甲氧甲酰基亚甲基三苯基膦(154g,460mmol)同时将反应温度维持在20-25℃,反应继续在20-25℃下搅拌16h,TLC显示原料反应完全。反应液在减压下浓缩干,残余物经过硅胶柱色谱纯化得到无色油状(S)-2-(3-甲氧基-3-氧代丙-1-烯-1-基)吗啉-4-羧酸叔丁酯(A-3)(75g,产率60.1%)。
1H NMR(400MHz,Chloroform-d)δ6.83(ddd,J=15.9,4.2,1.0Hz,0.76H),6.16–6.07(m,1H),5.87(dt,J=11.8,1.2Hz,0.24H),4.18–3.80(m,4H),3.74(s,1.0Hz,3H),3.64–3.53(m,1H),3.05–2.85(m,1H),2.75–2.55(m,1H),1.47(t,J=1.6Hz,9H).
第三步:(S)-2-(3-甲氧基-3-氧丙基)吗啉-4-羧酸叔丁酯(A-4)的合成
在2L单口瓶中加入(S)-2-(3-甲氧基-3-氧代丙-1-烯-1-基)吗啉-4-羧酸叔丁酯(A-3)(75g,276mmol)、甲醇(750mL),反应体系置换氮气3次,加入Pd/C(3.75g),反应体系用氢气置换3次,调节反应温度至20-25℃并在1atm氢气氛围下搅拌24h,TLC显示原料反应完全。反应体系置换氮气3次,过滤得到(S)-2-(3-甲氧基-3-氧丙基)吗啉-4-羧酸叔丁酯(A-4)(76g,产率100%)的甲醇溶液直接用于下一步。
1H NMR(400MHz,Chloroform-d)δ3.90–3.65(m,3H),3.59(s,3H),3.44–3.33(m,1H),3.33–3.22(m,1H),2.83(t,J=13.2Hz,1H),2.50(t,J=22.0Hz,1H),2.45–2.24(m,2H),1.78–1.61(m,2H),1.40–1.36(m,9H)。
第四步:(S)-3-(4-(叔丁氧基羰基)吗啉-2-基)丙酸(A-5)的合成
在2L三口瓶中加入(S)-2-(3-甲氧基-3-氧丙基)吗啉-4-羧酸叔丁酯(A-4)(76g,278mmol)的甲醇(750mL)溶液,加入75mL水,调节反应温度至20-25℃,缓慢加入一水合氢氧化锂(23.3g,556mmol)同时保持反应温度在20-25℃,反应继续在20-25℃下搅拌16h。减压下浓缩干甲醇,加入400mL水,水相用乙酸乙酯(200mL×2)洗涤,收集水相,调节水相温度至0-5℃,搅拌下用4M盐酸水溶液调节pH至4-5,用二氯甲烷(400mL×3)萃取水相,合并有机相用无水硫酸钠干燥并在减压下浓缩得到无色油状(S)-3-(4-(叔丁氧基羰基)吗啉-2-基)丙酸(A-5)(72g,产率99.8%)。
1H NMR(400MHz,Chloroform-d)δ3.97–3.69(m,3H),3.46(td,J=11.7,2.8Hz,1H),3.41–3.32(m,1H),2.97-2.81(m,1H),2.67–2.38(m,J=21.0,16.7,9.5Hz,3H),1.76(qd,J=9.9,8.6,6.1Hz,2H),1.44(s,9H).
第五步:(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)的合成
在2L三口瓶中加入(S)-3-(4-(叔丁氧基羰基)吗啉-2-基)丙酸(A-5)(72g,278mmol)、N,O-二甲基羟胺盐酸盐(32.5g,333mmol)和二氯甲烷(720mL),将反应温度调节至0-5℃。向反应液中缓慢滴加DIEA(108g,833mmol)、1-丙基磷酸酐(50%的DMF溶液,265g,417mmol)。调节反应内温至20-25℃并且搅拌16h。将500mL饱和NaHCO
3溶液缓慢滴加至反应液中,分液并收集有机相。有机相用500mL饱和碳酸氢钠溶液洗涤并在减压下浓缩干。向残留物中加入360mL乙酸乙酯,用饱和的氯化铵洗涤(300mL×3),有机相在减压下浓缩干得到无色油状(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)(71g,产率85%)。
1H NMR(400MHz,Chloroform-d)δ3.96–3.74(m,3H),3.67(s,3H),3.46(td,J=11.7,2.9Hz,1H),3.36(td,J=7.9,6.8,4.2Hz,1H),3.16(s,3H),2.98–2.83(m,1H),2.55(dd,J=13.8,6.6Hz,3H),1.87–1.70(m,2H),1.44(s,9H)。
制备2:中间体(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B) 的制备
目标中间体B的合成路线如下所示:
第一步:(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-1)的合成
在氮气氛围下,向2L三口瓶中加入2,3,5-三氟溴苯(74.3g,352mmol)、无水四氢呋喃(710mL),调节反应温度至-10~0℃,缓慢滴加二异丙基氨基锂(176mL,352mmol,2mol/L的四氢呋喃溶液)同时维持反应温度在-10~0℃,反应液继续搅拌1h后,缓慢向溶液中滴加(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)(71g,235mmol)的四氢呋喃(140mL)溶液,反应继续在-10~0℃搅拌2h,TLC显示反应完全。向反应液中缓慢滴加饱和氯化铵溶液(500mL),反应液升至室温,加入500mL乙酸乙酯稀释,分液并且用500mL乙酸乙酯萃取水相,合并有机相用饱和氯化铵(1L)洗涤,收集的有机相经无水硫酸钠干燥、减压浓缩,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:5)纯化得到白色固体(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-1)(91g,产率86%)。
1H NMR(400MHz,Chloroform-d)δ7.22–7.15(m,1H),3.85–3.78(m,3H),3.44(td,J=11.7,2.8Hz,1H),3.36(ddt,J=12.8,10.2,3.1Hz,1H),3.07–2.80(m,3H),2.68–2.54(s,1H),1.92(dtd,J=14.5,7.3,3.7Hz,1H),1.81(tq,J=14.0,8.0,6.8Hz,1H),1.45(s,9H).
LC-MS,M/Z:352.1[M+H]
+
第二步:(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)的合成
将(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-1)(91.0g,201mmol)溶解在甲醇(1L)中,加入三乙胺(60g,603mmol)和1,1-双(二苯基磷)二茂铁氯化钯(5.90g,8.05mmol),抽真空,氮气置换三次,一氧化碳置换三次,然后在一氧化碳(45psi)条件下,55-65℃反应24小时。TLC显示反应完全,将反应液浓缩干,然后加入水(1L),用柠檬酸调至中性,然后用乙酸乙酯(800mL×2)萃取,有机相合并,用无水硫酸钠干燥,过滤,浓缩得到棕色油状化合物(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)(82g,产率93.5%)。
1H NMR(400MHz,Chloroform-d)δ7.52–7.27(m,1H),3.98(s,3H),3.85–3.82(m,3H),3.46–3.38(m,2H),3.05–2.90(m,2H),2.90–2.77(m,1H),2.75–2.51(m,1H),1.96–1.82(m,2H),1.47(s,9H).
LC-MS,M/Z:332.2[M+H]
+。
制备3:中间体(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)的制备
目标中间体B的合成路线如下所示:
第一步:(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-2)的合成
在氮气氛围下,向500mL三口瓶中加入2,3,5-三氟溴苯(10.5g,50mmol)、无水四氢呋喃(100mL),调节反应温度至-80~-60℃,缓慢滴加二异丙基氨基锂(25mL,50mmol,2mol/L的四氢呋喃溶液)同时维持反应温度在-80~-60℃,反应液继续搅拌1h后,缓慢向溶液中滴加 (S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)(10g,33mmol)的四氢呋喃(20mL)溶液,继续在-80~-60℃搅拌2h,TLC显示反应完全。向反应液中缓慢滴加饱和氯化铵溶液(100mL),反应液升至室温,加入100mL乙酸乙酯稀释,分液并且用100mL乙酸乙酯萃取水相,合并有机相用饱和氯化铵(200mL)洗涤,收集的有机相经无水硫酸钠干燥、减压浓缩,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:5)纯化得到白色固体(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-2)(9.3g,产率62%)。
LC-MS,M/Z:352.1[M+H]
+
第二步:(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)的合成
将(S)-2-(3-(4-溴-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-2)(9.3g,20.5mmol)溶解在甲醇(93mL)中,加入三乙胺(6.12g,61.5mmol)和1,1-双(二苯基磷)二茂铁氯化钯(0.6g,0.82mmol),抽真空,氮气置换三次,一氧化碳置换三次,然后在一氧化碳(45psi)条件下,55-65℃反应24小时。TLC显示反应完全,将反应液浓缩干,然后加入水(100mL),用柠檬酸调至中性,然后用乙酸乙酯(100mL×2)萃取,有机相合并,用无水硫酸钠干燥,过滤,浓缩得到棕色油状化合物(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)(8g,产率91%)。
LC-MS,M/Z:332.2[M+H]
+。
制备4:中间体(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)的制备
目标中间体B的合成路线如下所示:
第一步:(S)-4-(3-(4-(叔丁氧基羰基)吗啉-2-基)丙酰基)-2,3,5-三氟苯甲酸(B-3)的合成
在氮气氛围下,向250mL三口瓶中加入2,3,5-三氟苯甲酸(7.0g,40mmol)、TMEDA(10.2g,88mmol)、无水四氢呋喃(100mL),调节反应温度至-10~0℃,缓慢滴加正丁基锂(35.2mL,88mmol,2.5mol/L的正己烷溶液)同时维持反应温度在-10~0℃,反应液继续搅拌0.5h后,缓慢向溶液中滴加(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)(10g,33mmol)的四氢呋喃(20mL)溶液,继续在-10~0℃搅拌2h,TLC显示反应完全。向反应液中缓慢滴加水(100mL),反应液升至室温,用1M盐酸水溶液调节水相pH至4-5,加入100mL乙酸乙酯稀释,分液并且用100mL乙酸乙酯萃取水相,合并有机相,收集的有机相经无水硫酸钠干燥、减压浓缩,得到白色固体(S)-4-(3-(4-(叔丁氧基羰基)吗啉-2-基)丙酰基)-2,3,5-三氟苯甲酸(B-3)(7.6g,产率55%)。
LC-MS,M/Z:318.1[M+H]
+
第二步:(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)的合成
将(S)-4-(3-(4-(叔丁氧基羰基)吗啉-2-基)丙酰基)-2,3,5-三氟苯甲酸(B-3)(7.6g,18.2mmol)溶解在N,N-二甲基甲酰胺(76mL)中,加入碳酸氢钠(3.06g,36.4mmol)和碘甲烷(3.87g,27.3mmol),反应在20-25℃反应24小时。TLC显示反应完全,向反应液中加入水(100mL),然后用乙酸乙酯(100mL×2)萃取,合并有机相,用饱和的碳酸氢钠溶液(300mL×2)以及饱和的氯化钠溶液(300mL)洗涤,无水硫酸钠干燥,过滤,浓缩得到棕色油状化合物(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)(7.2g,产率91%)。
LC-MS,M/Z:332.2[M+H]
+。
制备5:中间体(S)-2-(3-(4-(叔丁氧羰基)-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-Bu)的制备
目标中间体B-Bu的合成路线如下所示:
第一步:(S)-2-(3-(4-(叔丁氧羰基)-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-Bu)的合成
在氮气氛围下,向250mL三口瓶中加入2,3,5-三氟苯甲酸叔丁酯(11.5g,49.5mmol)、无水四氢呋喃(100mL),调节反应温度至-10~0℃,缓慢滴加二异丙基氨基锂(24.8mL,49.5mmol,2mol/L的正己烷溶液)同时维持反应温度在-10~0℃,反应液继续搅拌1h后,缓慢向溶液中滴加(S)-2-(3-(甲氧基(甲基)氨基)-3-氧丙基)吗啉-4-羧酸叔丁酯(A)(10g,33mmol)的四氢呋喃(20mL)溶液,继续在-10~0℃搅拌3h,TLC显示反应完全。向反应液中缓慢滴加饱和氯化铵溶液(100mL),反应液升至室温,加入100mL乙酸乙酯稀释,分液并且用100mL乙酸乙酯萃取水相,合并有机相用饱和氯化铵(200mL)洗涤,收集的有机相经无水硫酸钠干燥、减压浓缩,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:5)纯化得到白色固体(S)-2-(3-(4-(叔丁氧羰基)-2,3,6-三氟苯基)-3-氧丙基)吗啉-4-羧酸叔丁酯(B-Bu)(9.2g,产率59%)。
LC-MS,M/Z:374.1[M+H]
+。
制备6:中间体(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)的制备
目标中间体C的合成路线如下所示:
第一步:(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C-1)的合成
在氮气氛围下,向2L三口瓶中加入(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸叔丁酯(B)(82g,190mmol)和1,4-二氧六环(200mL),调节反应温度至20-25℃。缓慢向溶液中加入盐酸的1,4-二氧六环溶液(143mL,4mol/L),保持反应温度在20-25℃,反应继续搅拌3h,LC-MS显示反应完全。反应液在减压下浓缩干,向残留物中加入二氯甲烷(820mL),调节反应液温度至0-5℃,缓慢滴加三乙胺(48.1g,475mmol),然后加入氯甲酸甲酯(26.9g,285mmol)。调节反应温度至20-25℃,反应液在20-25℃搅拌12h,TLC显示反应完全。向反应液中加入400mL饱和氯化钠溶液,分液并收集有机相,有机相用1L饱和氯化铵洗涤,有机相浓缩干得到棕色油状(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C-1)(71g,产率96%)。
LC-MS,M/Z:390.1[M+H]
+
第二步:(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)的合成
向2L三口烧瓶中加入(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲 酯(C-1)(71g,182mmol),二氯甲烷(710mL)和33%的溴化氢醋酸溶液(2.24g,9.12mmol)。调节反应温度至20-25℃,向反应液中缓慢滴入液溴(35g,219mmol),反应在20-25℃下继续搅拌1h,TLC显示反应完全。向反应体系中加入300mL饱和亚硫酸氢钠溶液,以及800mL饱和碳酸氢钠溶液。分液并收集有机相,有机相用800mL饱和碳酸氢钠溶液洗涤,收集的有机相经无水硫酸钠干燥、减压浓缩,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:3)纯化得到棕色油状(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)(76g,产率89%)。
1H NMR(400MHz,Chloroform-d)δ7.51(ddd,J=9.3,4.7,2.2Hz,1H),5.16–5.11(m,1H),3.97–3.83(d,J=0.7Hz,6H),3.71(s,3H),3.69–3.36(m,2H),2.98–2.95(m,1H),2.76–2.68(m,1H),2.59–2.29(m,1H),2.24–2.07(m,1H).
LC-MS,M/Z:468.0[M+H]
+。
制备7:中间体(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)的制备
目标中间体C的合成路线如下所示:
第一步:(S)-2,3,5-三氟-4-(3-(4-(甲氧基羰基)吗啉-2-基)丙酰基)苯甲酸(C-2)的合成
在氮气氛围下,向250mL三口瓶中加入(S)-2-(3-(4-(叔丁氧羰基)-2,3,6-三氟苯基)-3-氧丙 基)吗啉-4-羧酸叔丁酯(B-Bu)(9.2g,19.4mmol)和1,4-二氧六环(20mL),调节反应温度至20-25℃。缓慢向溶液中加入盐酸的1,4-二氧六环溶液(20.0mL,4mol/L),保持反应温度在20-25℃,反应继续搅拌15h。反应液在减压下浓缩干,向残留物中加入二氯甲烷(72mL),调节反应液温度至0-5℃,缓慢滴加三乙胺(6.87g,67.9mmol),然后加入氯甲酸甲酯(2.36g,29.1mmol)。调节反应温度至20-25℃,反应液在20-25℃搅拌12h。向反应液中加入100mL水,用5M的盐酸溶液调节水相的pH至4-5,分液并收集有机相,水相用二氯甲烷萃取(100mL×2),合并的有机相浓缩干得到白色固体(S)-2,3,5-三氟-4-(3-(4-(甲氧基羰基)吗啉-2-基)丙酰基)苯甲酸(C-2)(6.0g,产率83%)。
LC-MS,M/Z:376.1[M+H]
+
第二步:(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C-1)的合成
将(S)-2,3,5-三氟-4-(3-(4-(甲氧基羰基)吗啉-2-基)丙酰基)苯甲酸(C-2)(6.0g,16.0mmol)溶解在N,N-二甲基甲酰胺(60mL)中,碳酸氢钠(2.69g,32.0mmol)和碘甲烷(3.40g,24mmol),反应在20-25℃反应24小时。TLC显示反应完全,向反应液中加入水(100mL),然后用乙酸乙酯(100mL×2)萃取,有机相合并,饱和的碳酸氢钠溶液(300mL×2)以及饱和的氯化钠溶液(300mL)洗涤,无水硫酸钠干燥,过滤,浓缩得到白色油状化合物(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C-1)(4.67g,产率75%)。
LC-MS,M/Z:390.1[M+H]
+
第三步:(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)的合成
向100mL三口烧瓶中加入(S)-2-(3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C-1)(4.67g,12.0mmol)、二氯甲烷(50mL)和33%的溴化氢醋酸溶液(0.15g,0.61mmol)。调节反应温度至20-25℃,向反应液中缓慢滴入液溴(2.3g,14.4mmol),反应在20-25℃下继续搅拌1h,TLC显示反应完全。向反应体系中加入30mL饱和亚硫酸氢钠溶液,以及50mL饱和碳酸氢钠溶液。分液并收集有机相,有机相用50mL饱和碳酸氢钠溶液洗涤,收 集的有机相经无水硫酸钠干燥、减压浓缩,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:3)纯化得到棕色油状(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)(5.3g,产率95%)。
LC-MS,M/Z:468.0[M+H]
+。
制备8:中间体(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(D)的制备
目标中间体D的合成路线如下所示:
第一步:(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(D)的合成
向350mL反应瓶中加入(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)(15g,31.4mmol)、2-氨基-4-甲基吡啶(6.93g,62.8mmol)和乙腈(150mL),将反应瓶封闭,调节反应温度为120℃并搅拌24h,冷却至室温下过滤,滤液在减压下浓缩干,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:1)纯化得到黄色固体(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(D)(8g,产率52%)
LC-MS,M/Z:478.2[M+H]
+。
制备9:中间体(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(E)的制备
目标中间体E的合成路线如下所示:
第一步:(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(E)的合成
向1L反应瓶中加入(2S)-2-(2-溴-3-氧代-3-(2,3,6-三氟-4-(甲氧羰基)苯基)丙基)吗啉-4-羧酸甲酯(C)(60g,128mmol)、2-氨基-4-氯吡啶(32.9g,256mmol)和乙腈(600mL)。反应瓶在120℃下搅拌24h,冷却至室温下过滤,滤液在减压下浓缩干,最后通过硅胶柱色谱(乙酸乙酯:石油醚=1:1)纯化得到黄色固体(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(E)(30g,产率47%)。
LC-MS,M/Z:498.1[M+H]
+。
实施例1:(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(1)的制备
目标化合物1的合成路线如下所示:
第一步:(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯的制备(1)的合成
向100mL反应瓶中加入(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(D)(8g,16.7mmol)、甲醇(16mL)。向反应液中加入33%甲胺的甲醇溶液(7.8g,83mmol),调节反应温度至20-25℃并且搅拌5h。TLC显示反应结束。反应液减压浓缩干,用硅胶柱色谱纯化得到黄色固体(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-甲基咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(1)(7.7g,产率97%)。
1H NMR(400MHz,Chloroform-d)δ8.13(d,J=7.1Hz,1H),7.62(ddd,J=9.6,5.6,2.1Hz,1H),7.32(dt,J=2.0,1.1Hz,1H),7.00(s,1H),6.64(dd,J=7.1,1.7Hz,1H),3.95–3.68(m,3H),3.62(s,3H),3.54–3.47(m,1H),3.37–3.27(m,1H),3.02(d,J=4.8,0.9Hz,3H),3.00–2.78(m,3H),2.55(dd,J=13.0,10.6Hz,1H),2.37(d,J=1.1Hz,3H).
LC-MS,M/Z:477.2[M+H]
+。
实施例2:(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(2)的制备
目标化合物2的合成路线如下所示:
第一步:(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(2)的合成
向100mL反应瓶中加入(S)-2-((2-(2,3,6-三氟代-4-(甲氧羰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(E)(30g,60.3mmol)、甲醇(60mL)。向反应液中加入33%的甲胺甲醇溶液(28.4g,301mmol),调节反应温度至20-25℃并且搅拌5h。TLC显示反应结束。反应液减压浓缩干,用硅胶柱色谱纯化得到黄色固体(S)-2-((2-(2,3,6-三氟代-4-(甲基氨基甲酰基)苯基)-7-氯咪唑并[1,2-a]吡啶-3-基)甲基)吗啉-4-甲酸甲酯(2)(27g,产率90%)。
1H NMR(400MHz,Chloroform-d)δ8.27(d,J=7.4Hz,1H),7.69(ddd,J=9.6,5.6,2.1Hz,1H),7.60(dd,J=2.1,0.8Hz,1H),6.81(m,4.1Hz,2H),4.04–3.73(m,3H),3.67(s,3H),3.60–3.50(m,1H),3.35(t,J=11.7Hz,1H),3.06(dd,J=4.9,1.0Hz,3H),3.02–2.81(m,3H),2.60(t,J=11.8Hz,1H).
LC-MS,M/Z:497.2[M+H]
+。
Claims (37)
- 根据权利要求1所述的如式II所示的中间体,其特征在于,当R 2为卤素时,所述卤素为Br或I;和/或,所述R 2a为C 1-C 6烷基。
- 根据权利要求1所述的如式II所示的中间体,其特征在于,当R 2为卤素时,所述卤素为Br;和/或,所述R 2a为甲基、乙基、正丙基、异丙基、正丁基、异丁基、仲丁基或叔丁基。
- 根据权利要求5所述的如式II-1所示的中间体的制备方法,其特征在于,所述步骤1中,所述氨基金属化合物为二异丙基氨基锂、双三甲基硅基胺基锂、双三甲基硅基胺基钾、双三甲基硅基胺基钠;所述烷基金属化合物为甲基格氏试剂、乙基格氏试剂、异丙基格氏试剂、烷基锂化合物;当所述的R 2为卤素时,所述反应在氨基金属化合物的作用下进行;所述反应的反应温度为-80~0℃;所述反应中如式I所示的中间体与如式1所示的化合物的摩尔比为1:1~1:1.6;所述反应在有机溶剂中进行,所述有机溶剂包括乙醚、二氯甲烷、甲苯、2-甲基四氢呋 喃或四氢呋喃;所述反应的反应时间为2~4小时;当所述有机金属化合物为烷基锂化合物时,所述反应还包括稳定剂,所述稳定剂为N,N,N',N'-四甲基乙二胺。
- 根据权利要求5所述的如式II-1所示的中间体的制备方法,其特征在于,所述步骤1中,所述反应中如式I所示的中间体与如式1所示的化合物的摩尔比为1:1.2或1:1.5。
- 根据权利要求6所述的如式I所示的中间体的制备方法,其特征在于,所述步骤2中,所述如式I-2所示的中间体与如式2所示的化合物的摩尔比为1:1~1:2;所述如式I-2所示的中间体与有机碱的化合物的摩尔比为1:2~1:4;所述如式I-2所示的中间体与缩合剂的摩尔比为1:1~1:2;所述有机碱为N,N-二异丙基乙胺;所述反应的反应温度为20~25℃;所述缩合剂为1-丙基磷酸酐;所述反应在二氯甲烷中进行;所述反应的反应时间为14~18小时。
- 根据权利要求6所述的如式I所示的中间体的制备方法,其特征在于,所述步骤2中,所述如式I-2所示的中间体与如式2所示的化合物的摩尔比为1:1.2;所述如式I-2所示的中间体与有机碱的化合物的摩尔比为1:2.8~1:3.2;所述如式I-2所示的中间体与缩合剂的摩尔比为1:1.5;所述反应的反应时间为16小时。
- 根据权利要求6所述的如式I所示的中间体的制备方法,其特征在于,所述步骤2中,所述如式I-2所示的中间体与有机碱的化合物的摩尔比为1:3。
- 根据权利要求7所述的如式I所示的中间体的制备方法,其特征在于,所述步骤3中,所述反应还包括氢气;所述反应还包括钯碳;所述反应的反应温度为20~25℃;所述反应中氢气的压力为0.8~1.2个大气压;所述钯碳与化合物3的质量比为1:18~1:22;所述反应的反应时间为22~26小时。
- 根据权利要求7所述的如式I所示的中间体的制备方法,其特征在于,所述步骤3中,所述反应中氢气的压力为1个大气压;所述钯碳与化合物3的质量比为1:20;所述反应的反应时间为24小时。
- 根据权利要求7所述的如式I所示的中间体的制备方法,其特征在于,所述步骤4中,所述无机碱选自氢氧化锂、氢氧化钠或氢氧化钾;所述反应的反应温度为20~25℃;所述如式I-1所示的中间体与无机碱的摩尔比为1:1~1:4;所述反应在甲醇中进行;所述反应的反应时间为14~18小时。
- 根据权利要求7所述的如式I所示的中间体的制备方法,其特征在于,所述步骤4中,所述无机碱选自氢氧化锂;所述如式I-1所示的中间体与无机碱的摩尔比为1:2;所述反应的反应时间为16小时。
- 根据权利要求8所述的如式II-1A所示的中间体的制备方法,其特征在于,所述步骤5中,所述催化剂为过渡金属催化剂,所述过渡金属催化剂包括钯金属催化剂、钌金属催化剂、铁金属催化剂、钴金属催化剂、镍金属催化剂、铑金属催化剂;所述有机碱为三乙胺或N,N-二异丙基乙胺;所述反应在加压的一氧化碳中进行,所述一氧化碳的压力为40~50psi;所述反应的反应温度为55~65℃;所述反应的反应时间为22~26小时。
- 根据权利要求8所述的如式II-1A所示的中间体的制备方法,其特征在于,所述步骤5中,所述催化剂为过渡金属催化剂,所述过渡金属催化剂为钯金属催化剂;所述有机碱为三乙胺;所述反应在加压的一氧化碳中进行,所述一氧化碳的压力为45psi;所述反应的反应温度为55~65℃;所述反应的反应时间为24小时。
- 根据权利要求25所述的如式II-1A所示的中间体的制备方法,其特征在于,所述钯金属催化剂为四(三苯基膦)钯、醋酸钯、双三苯基磷二氯化钯、1,1-双(二苯基磷)二茂铁氯化钯、[1,1'-双(二苯基膦)二茂铁]二氯化钯二氯甲烷络合物、三(二亚苄基丙酮)二钯、双(二亚芐基丙酮)钯、1,4-双(二苯基膦丁烷)二氯化钯。
- 根据权利要求25所述的如式II-1A所示的中间体的制备方法,其特征在于,所述钯金属催化剂为1,1-双(二苯基磷)二茂铁氯化钯。
- 根据权利要求9所述的如式II-1A所示的中间体的制备方法,其特征在于,所述步骤6中,所述如式II-1A所示的中间体与如式5所示的化合物的摩尔比为1:1~1:2;所述反应的反应温度为20~25℃;所述碱为碳酸氢钠;所述反应在N,N-二甲基甲酰胺中进行;所述反应的反应时间为22~26小时。
- 根据权利要求9所述的如式II-1A所示的中间体的制备方法,其特征在于,所述步骤6中,所述如式II-1A所示的中间体与如式5所示的化合物的摩尔比为1:1.5;所述反应的反应时间为24小时。
- 根据权利要求10所述的如式II-2所示的中间体的制备方法,其特征在于,所述步骤7中,所述如式II-1A所示的中间体与如式6所示的化合物的摩尔比为1:1~1:2;所述脱去如式II-1A所示的中间体保护基PG 1在盐酸的作用下进行;所述脱去如式II-1A所示的中间体保护基PG 1在与氢气的反应下进行;所述反应的反应温度为20~25℃;所述碱为三乙胺或N,N-二异丙基乙胺;所述的脱保护基的反应在1,4-二氧六环中进行;所述的脱保护基的反应时间为2~4小时;所述的脱保护基的产物在碱的作用下与如式6所示的化合物的反应在二氯甲烷中进行;所述的脱保护基的产物在碱的作用下与如式6所示的化合物的反应的反应时间为10~14小时。
- 根据权利要求10所述的如式II-2所示的中间体的制备方法,其特征在于,所述步骤7中,所述如式II-1A所示的中间体与如式6所示的化合物的摩尔比为1:1.5;所述碱为三乙胺;所述的脱保护基的反应时间为3小时;所述的脱保护基的产物在碱的作用下与如式6所示的化合物的反应的反应时间为12小时。
- 根据权利要求11所述的如式II-3所示的中间体的制备方法,其特征在于,所述步骤8中,所述溴化试剂为N-溴代丁二酰亚胺、二溴海因、三溴化吡啶、溴化铜或液溴;所述如式II-2所示的中间体与溴化试剂的摩尔比为1:1~1:3;所述反应在二氯甲烷中进行;所述反应的反应温度为20~25℃;所述反应的反应时间为0.5~2小时。
- 根据权利要求11所述的如式II-3所示的中间体的制备方法,其特征在于,所述步骤8中,所述溴化试剂为液溴;所述如式II-2所示的中间体与溴化试剂的摩尔比为1:1.2;所述反应的反应时间为1小时。
- 根据权利要求12所述的如式III所示的中间体的制备方法,其特征在于,所述步骤9中,所述反应中如式II-3所示的中间体与所述如式7所示的化合物摩尔比为1:1~1:3;所述反应在有机溶剂中进行,所述有机溶剂包括乙腈、二甲基亚砜、乙醇、N,N-二甲基乙酰胺、N,N-二甲基甲酰胺、N-甲基吡咯烷酮、1,4-二氧六环、正丙醇或正丁醇;所述反应的反应温度为110~130℃;所述反应的反应时间为22~26小时。
- 根据权利要求12所述的如式III所示的中间体的制备方法,其特征在于,所述步骤9中,所述反应中如式II-3所示的中间体与所述如式7所示的化合物摩尔比为1:2;所述反应在有机溶剂中进行,所述有机溶剂为乙腈;所述反应的反应温度为120℃;所述反应的反应时间为24小时。
- 根据权利要求13所述的如式IV所示的化合物的制备方法,其特征在于,所述步骤10中,所述如式III所示的中间体与甲胺的摩尔比为1:4~1:6;所述反应的反应温度为20~25℃;所述反应在甲醇中进行;所述反应的反应时间为4~6小时。
- 根据权利要求13所述的如式IV所示的化合物的制备方法,其特征在于,所述步骤10中,所述如式III所示的中间体与甲胺的摩尔比为1:5;所述反应的反应时间为5小时。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110090342 | 2021-01-22 | ||
CN202110090342.7 | 2021-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022156783A1 true WO2022156783A1 (zh) | 2022-07-28 |
Family
ID=82527683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2022/073298 WO2022156783A1 (zh) | 2021-01-22 | 2022-01-21 | 咪唑并吡啶类化合物的制备方法及其中间体 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN114805340A (zh) |
WO (1) | WO2022156783A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117924279B (zh) * | 2024-03-18 | 2024-07-16 | 中山大学 | 一种melk抑制剂及其应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105246888A (zh) * | 2013-01-31 | 2016-01-13 | 尼奥迈德研究所 | 咪唑并吡啶化合物及其用途 |
CN111377917A (zh) * | 2018-12-29 | 2020-07-07 | 武汉朗来科技发展有限公司 | 杂环类化合物、中间体、其制备方法及应用 |
WO2021161109A1 (en) * | 2020-02-14 | 2021-08-19 | Bellus Health Cough Inc. | Preparation of a p2x3 antagonist |
WO2021161105A1 (en) * | 2020-02-14 | 2021-08-19 | Bellus Health Cough Inc. | P2x3 modulators |
CN113549068A (zh) * | 2020-04-24 | 2021-10-26 | 上海拓界生物医药科技有限公司 | 一类新型咪唑并吡啶化合物、其制备方法及其在医药上的应用 |
CN113754654A (zh) * | 2020-06-05 | 2021-12-07 | 武汉人福创新药物研发中心有限公司 | 咪唑并吡啶类化合物及其用途 |
-
2022
- 2022-01-21 WO PCT/CN2022/073298 patent/WO2022156783A1/zh active Application Filing
- 2022-01-21 CN CN202210072873.8A patent/CN114805340A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105246888A (zh) * | 2013-01-31 | 2016-01-13 | 尼奥迈德研究所 | 咪唑并吡啶化合物及其用途 |
CN111377917A (zh) * | 2018-12-29 | 2020-07-07 | 武汉朗来科技发展有限公司 | 杂环类化合物、中间体、其制备方法及应用 |
WO2021161109A1 (en) * | 2020-02-14 | 2021-08-19 | Bellus Health Cough Inc. | Preparation of a p2x3 antagonist |
WO2021161105A1 (en) * | 2020-02-14 | 2021-08-19 | Bellus Health Cough Inc. | P2x3 modulators |
CN113549068A (zh) * | 2020-04-24 | 2021-10-26 | 上海拓界生物医药科技有限公司 | 一类新型咪唑并吡啶化合物、其制备方法及其在医药上的应用 |
CN113754654A (zh) * | 2020-06-05 | 2021-12-07 | 武汉人福创新药物研发中心有限公司 | 咪唑并吡啶类化合物及其用途 |
Also Published As
Publication number | Publication date |
---|---|
CN114805340A (zh) | 2022-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2453951T3 (es) | Derivado de cicloalquilamina | |
JP2546470B2 (ja) | ピラゾロピリジン化合物およびその製造方法 | |
JP5851053B2 (ja) | 抗腫瘍性アザベンゾ[f]アズレン誘導体およびその製造方法 | |
ES2355600T3 (es) | Trialquilsililbencilaminocarboxiindoles, indazoles e indolinas y su empleo en el tratamiento de trastornos mediados por cetp. | |
JP2004506611A5 (zh) | ||
JP2022534067A (ja) | Retキナーゼ阻害剤としての化合物およびその使用 | |
WO2022156783A1 (zh) | 咪唑并吡啶类化合物的制备方法及其中间体 | |
WO2008128431A1 (fr) | Dérivés de l-stépholidine (l-spd), leurs procédés de préparation et d'utilisation | |
CZ324292A3 (en) | Quinoline derivatives, process of their preparation and pharmaceutical compositions in which said derivatives are comprised | |
KR20010042307A (ko) | 피롤로[1,2-a]피라진 sPLA2 억제제 | |
CN109476609A (zh) | 吡唑-酰胺化合物的制造方法 | |
JP3231775B2 (ja) | 心循環器系に作用する2−アミノ−1,2,3,4−テトラヒドロナフタレン誘導体、それらを製造する方法、及びそれらを含む医薬組成物 | |
WO2023241507A1 (zh) | 一种炔基吡啶类化合物的晶型及其制备方法 | |
CN110467601B (zh) | 一种吡唑联吡啶酮类化合物、中间体及其制备方法及应用 | |
WO2022156784A1 (zh) | 杂环类化合物的制备方法及其中间体 | |
US7465799B2 (en) | Methods and compositions for selectin inhibition | |
WO2022171088A1 (zh) | 吡唑并[3,4-d]嘧啶-3-酮衍生物 | |
JPH0952895A (ja) | 新規アミノフェニルホスホン酸化合物、その製造方法、及びそれを含有する医薬組成物 | |
WO2021238965A1 (zh) | (s)-2-氨基-3-(4-(2,3-二甲基吡啶-4-基)苯基丙酸甲酯及其盐的制备方法 | |
US5432283A (en) | Quinoline derivatives | |
JP2008069144A (ja) | ピラゾロン誘導体及びそれらを有効成分とするpde阻害剤 | |
US5821245A (en) | Use of naphthalene derivatives in treating lung carcinoma | |
JP2009249355A (ja) | フッ素化されたフルオレン誘導体およびその製造方法 | |
JPH04334358A (ja) | 縮合ベンゼンオキシ酢酸誘導体 | |
ES2715348T3 (es) | Compuestos que contienen anillos de nitrógeno fusionados para su uso como antagonistas de CRTH2 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22742262 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22742262 Country of ref document: EP Kind code of ref document: A1 |