PT101654A - 3- (6-FLUORO-BENZO- (D) -ISOXAZOL-3-YL) PIPERIDIN-1-YL} -ETHYL] -2-METHYL-6,7, 8,9-TETRAHYDRO-4H-PYRIDO- {1,2-A} PYRIMIDIN-4-ONA - Google Patents
3- (6-FLUORO-BENZO- (D) -ISOXAZOL-3-YL) PIPERIDIN-1-YL} -ETHYL] -2-METHYL-6,7, 8,9-TETRAHYDRO-4H-PYRIDO- {1,2-A} PYRIMIDIN-4-ONA Download PDFInfo
- Publication number
- PT101654A PT101654A PT101654A PT10165495A PT101654A PT 101654 A PT101654 A PT 101654A PT 101654 A PT101654 A PT 101654A PT 10165495 A PT10165495 A PT 10165495A PT 101654 A PT101654 A PT 101654A
- Authority
- PT
- Portugal
- Prior art keywords
- tetrahydro
- pyrido
- pyrimidin
- methyl
- fluoro
- Prior art date
Links
- -1 6-FLUORO-BENZO- (D) -ISOXAZOL-3-YL Chemical class 0.000 title claims description 18
- RWTNPBWLLIMQHL-UHFFFAOYSA-N fexofenadine Chemical compound C1=CC(C(C)(C(O)=O)C)=CC=C1C(O)CCCN1CCC(C(O)(C=2C=CC=CC=2)C=2C=CC=CC=2)CC1 RWTNPBWLLIMQHL-UHFFFAOYSA-N 0.000 title description 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 239000002904 solvent Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- DNCYBUMDUBHIJZ-UHFFFAOYSA-N 1h-pyrimidin-6-one Chemical compound O=C1C=CN=CN1 DNCYBUMDUBHIJZ-UHFFFAOYSA-N 0.000 claims description 6
- WZDSIRHXMBFLSN-UHFFFAOYSA-N 3-(2-aminoethyl)-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one Chemical compound C1CCCN2C(=O)C(CCN)=C(C)N=C21 WZDSIRHXMBFLSN-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- MRMGJMGHPJZSAE-UHFFFAOYSA-N 6-fluoro-3-piperidin-4-yl-1,2-benzoxazole Chemical compound N=1OC2=CC(F)=CC=C2C=1C1CCNCC1 MRMGJMGHPJZSAE-UHFFFAOYSA-N 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 4
- 125000005279 aryl sulfonyloxy group Chemical group 0.000 claims description 4
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 150000007530 organic bases Chemical class 0.000 claims description 4
- RAPZEAPATHNIPO-UHFFFAOYSA-N risperidone Chemical compound FC1=CC=C2C(C3CCN(CC3)CCC=3C(=O)N4CCCCC4=NC=3C)=NOC2=C1 RAPZEAPATHNIPO-UHFFFAOYSA-N 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- 125000005278 alkyl sulfonyloxy group Chemical group 0.000 claims description 3
- 239000000543 intermediate Substances 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003880 polar aprotic solvent Substances 0.000 claims description 2
- 239000002798 polar solvent Substances 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 150000007529 inorganic bases Chemical class 0.000 claims 1
- 229910052740 iodine Inorganic materials 0.000 claims 1
- 239000011630 iodine Substances 0.000 claims 1
- 125000005948 methanesulfonyloxy group Chemical group 0.000 claims 1
- 239000012048 reactive intermediate Substances 0.000 claims 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 21
- 125000003118 aryl group Chemical group 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 12
- 239000007787 solid Substances 0.000 description 11
- 238000000921 elemental analysis Methods 0.000 description 7
- 150000002923 oximes Chemical class 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- UEMGWPRHOOEKTA-UHFFFAOYSA-N 1,3-difluorobenzene Chemical compound FC1=CC=CC(F)=C1 UEMGWPRHOOEKTA-UHFFFAOYSA-N 0.000 description 3
- GPDOZSHECSIMHF-UHFFFAOYSA-N 6-fluoro-3-(oxan-4-yl)-1,2-benzoxazole Chemical compound FC1=CC2=C(C(=NO2)C2CCOCC2)C=C1 GPDOZSHECSIMHF-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 238000007363 ring formation reaction Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- OKBFNYBPFFVWPZ-UHFFFAOYSA-N (2,4-difluorophenyl)-(oxan-4-yl)methanone Chemical compound FC1=CC(F)=CC=C1C(=O)C1CCOCC1 OKBFNYBPFFVWPZ-UHFFFAOYSA-N 0.000 description 2
- WLNBMPZUVDTASE-HXIISURNSA-N (2r,3r,4s,5r)-2-amino-3,4,5,6-tetrahydroxyhexanal;sulfuric acid Chemical compound [O-]S([O-])(=O)=O.O=C[C@H]([NH3+])[C@@H](O)[C@H](O)[C@H](O)CO.O=C[C@H]([NH3+])[C@@H](O)[C@H](O)[C@H](O)CO WLNBMPZUVDTASE-HXIISURNSA-N 0.000 description 2
- IAAQUOVTPAMQCR-UHFFFAOYSA-N 1h-pyrido[3,2-d]pyrimidin-2-one Chemical compound C1=CC=C2NC(=O)N=CC2=N1 IAAQUOVTPAMQCR-UHFFFAOYSA-N 0.000 description 2
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 2
- CMWCQQUYLPYOMY-UHFFFAOYSA-N 3-(2-chloroethyl)-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one Chemical compound C1CCCN2C(=O)C(CCCl)=C(C)N=C21 CMWCQQUYLPYOMY-UHFFFAOYSA-N 0.000 description 2
- ZRNQNJYYORHCCH-UHFFFAOYSA-N 3-(6-fluoro-1,2-benzoxazol-3-yl)-5-iodopentan-1-ol Chemical compound FC1=CC2=C(C(=NO2)C(CCO)CCI)C=C1 ZRNQNJYYORHCCH-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BWLUMTFWVZZZND-UHFFFAOYSA-N Dibenzylamine Chemical compound C=1C=CC=CC=1CNCC1=CC=CC=C1 BWLUMTFWVZZZND-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000012359 Methanesulfonyl chloride Substances 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 150000003944 halohydrins Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 2
- JERPSZXASXLQGT-UHFFFAOYSA-N n-[(2,4-difluorophenyl)-(oxan-4-yl)methylidene]hydroxylamine Chemical class C=1C=C(F)C=C(F)C=1C(=NO)C1CCOCC1 JERPSZXASXLQGT-UHFFFAOYSA-N 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 1
- HUHXLHLWASNVDB-UHFFFAOYSA-N 2-(oxan-2-yloxy)oxane Chemical compound O1CCCCC1OC1OCCCC1 HUHXLHLWASNVDB-UHFFFAOYSA-N 0.000 description 1
- 125000001340 2-chloroethyl group Chemical group [H]C([H])(Cl)C([H])([H])* 0.000 description 1
- KFOPEQAUAZUOIF-UHFFFAOYSA-N 3-[2-(dibenzylamino)ethyl]-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one Chemical compound C(C1=CC=CC=C1)N(CCC1=C(N=C2N(C1=O)CCCC2)C)CC1=CC=CC=C1 KFOPEQAUAZUOIF-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 238000007126 N-alkylation reaction Methods 0.000 description 1
- PHSPJQZRQAJPPF-UHFFFAOYSA-N N-alpha-Methylhistamine Chemical compound CNCCC1=CN=CN1 PHSPJQZRQAJPPF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- GPWHDDKQSYOYBF-UHFFFAOYSA-N ac1l2u0q Chemical compound Br[Br-]Br GPWHDDKQSYOYBF-UHFFFAOYSA-N 0.000 description 1
- FXXACINHVKSMDR-UHFFFAOYSA-N acetyl bromide Chemical compound CC(Br)=O FXXACINHVKSMDR-UHFFFAOYSA-N 0.000 description 1
- LEKJTGQWLAUGQA-UHFFFAOYSA-N acetyl iodide Chemical compound CC(I)=O LEKJTGQWLAUGQA-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 1
- 150000008046 alkali metal hydrides Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000004390 alkyl sulfonyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000561 anti-psychotic effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KDPAWGWELVVRCH-UHFFFAOYSA-M bromoacetate Chemical compound [O-]C(=O)CBr KDPAWGWELVVRCH-UHFFFAOYSA-M 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005906 dihydroxylation reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- CUILPNURFADTPE-UHFFFAOYSA-N hypobromous acid Chemical compound BrO CUILPNURFADTPE-UHFFFAOYSA-N 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- JDNTWHVOXJZDSN-UHFFFAOYSA-N iodoacetic acid Chemical compound OC(=O)CI JDNTWHVOXJZDSN-UHFFFAOYSA-N 0.000 description 1
- 125000000842 isoxazolyl group Chemical group 0.000 description 1
- OTCKOJUMXQWKQG-UHFFFAOYSA-L magnesium bromide Chemical compound [Mg+2].[Br-].[Br-] OTCKOJUMXQWKQG-UHFFFAOYSA-L 0.000 description 1
- 229910001623 magnesium bromide Inorganic materials 0.000 description 1
- OHZZTXYKLXZFSZ-UHFFFAOYSA-I manganese(3+) 5,10,15-tris(1-methylpyridin-1-ium-4-yl)-20-(1-methylpyridin-4-ylidene)porphyrin-22-ide pentachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mn+3].C1=CN(C)C=CC1=C1C(C=C2)=NC2=C(C=2C=C[N+](C)=CC=2)C([N-]2)=CC=C2C(C=2C=C[N+](C)=CC=2)=C(C=C2)N=C2C(C=2C=C[N+](C)=CC=2)=C2N=C1C=C2 OHZZTXYKLXZFSZ-UHFFFAOYSA-I 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- BWESROVQGZSBRX-UHFFFAOYSA-N pyrido[3,2-d]pyrimidine Chemical compound C1=NC=NC2=CC=CN=C21 BWESROVQGZSBRX-UHFFFAOYSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- KEAYESYHFKHZAL-OUBTZVSYSA-N sodium-24 Chemical compound [24Na] KEAYESYHFKHZAL-OUBTZVSYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- NYBWUHOMYZZKOR-UHFFFAOYSA-N tes-adt Chemical class C1=C2C(C#C[Si](CC)(CC)CC)=C(C=C3C(SC=C3)=C3)C3=C(C#C[Si](CC)(CC)CC)C2=CC2=C1SC=C2 NYBWUHOMYZZKOR-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Description
DESCRIÇÃO "PROCESSO PARA A OBTENÇÃO DE 3-{2-[4-(6-FLUORO-BENZO-[d] ISOXAZOIi-3-IL) PIPERIDIN-l-IL] -ETIl·}-2-METIL--6,7,8,9-TETRA-HIDRO-4H-PIRIDO-[1, 2-a]PIRIMI-DIN-4-0NA E SEUS INTERMEDIÁRIOS"PROCESS FOR THE OBTAINATION OF 3- {2- [4- (6-FLUORO-BENZO- [d] ISOXAZOYI-3-YL) PIPERIDIN-1-YL] -ETIl} -2-METHYL- 7,8,9-TETRAHYDRO-4H-PYRIDO- [1,2-a] PYRIMI-DIN-4-N AND ITS INTERMEDIARIES "
O presente invento diz respeito a um processo para a obtenção de 3-{2-[4-(6-fluoro-benzo[d]isoxazol-3-il)-piperidin-l-il]-etil}-2-metil-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]pirimidin-4-ona da fórmula geral I N-0The present invention relates to a process for the preparation of 3- {2- [4- (6-fluoro-benzo [d] isoxazol-3-yl) -piperidin-1-yl] -ethyl} -2- 6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one of general formula I
I composto que tem aplicações farmacêuticas pelas suas propriedades antipsicóticas. São também objecto do presente invento 3-(2-aminoetil)-2-metil-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]pirimidin-4-ona da fórmula II e os produtos da fórmula geral III, em que Y e Z são grupos separáveis, tais como halogénio ou um grupo alquil- ou arilsulfoniloxi, podendo Y e Z ser iguais ou distintos entre si. Ambos os produtos são os intermediários reagentes no processo atrás mencionado. 2 2I compound which has pharmaceutical applications for its antipsychotic properties. 3- (2-aminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one of the formula II and the products of general formula III, wherein Y and Z are leaving groups, such as halogen or an alkyl- or arylsulfonyloxy group, where Y and Z may be the same or different from one another. Both products are the reagent intermediates in the above-mentioned process. 2 2
Os produtos II e III, assim como alguns dos seus precursores, não foram descritos anteriormente.Products II and III, as well as some of their precursors, have not been described above.
ANTECEDENTES DO INVENTOBACKGROUND OF THE INVENTION
Na patente EP 196132 descrevem-se quatro processos distintos para a obtenção da 3-{2-[4-(6-fluoro-benzo[d]iso-xazol-3-il)-piperidin-l-il]-etil}-2-metil-6,7,8,9-tetra-hi-dro-4H-pirido[l,2-a]pirimidin-4-ona. Três deles consistem na formação do sistema de 2-metil-6,7,8,9-tetra-hidro-4H-piri-do[l,2-a]pirimidin-4-ona por meio de processos distintos de condensação e ciclização. O quarto processo consiste na reacção de N-alquilação de 6-fluoro-3-(4-piperidinil)]-ben-zo[d]isoxazole com a 3-(2-cloroetil)-2-metil-6,7,8,9-tetra--hidro-4H-pirido[l,2-a]pirimidin-4-ona ou análogos com grupos separáveis distintos.In EP 196132 there are described four distinct processes for the preparation of 3- {2- [4- (6-fluoro-benzo [d] isoxazol-3-yl) -piperidin-1-yl] -ethyl} - 2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one. Three of them consist of the formation of the 2-methyl-6,7,8,9-tetrahydro-4H-pyrrolo [1,2-a] pyrimidin-4-one system by means of distinct processes of condensation and cyclization . The fourth process is the reaction of N-alkylation of 6-fluoro-3- (4-piperidinyl) benzo [d] isoxazole with 3- (2-chloroethyl) -2-methyl-6,7,8 , 9-tetrahydro-4 H -pyrido [1,2-a] pyrimidin-4-one or analogs with distinct separable groups.
Nas patentes ES 2006888 e ES 2006889 descrevem-se processos que consistem em tipos distintos de ciclização final do anel de isoxazole. A preparação de N-alquil- ou N-aril-piperidinas, em que se fundamenta o presente invento, encontra-se descrita na literatura química, tanto por reacção de 1,5-di-halo-pentanos com aminas primárias (J. von Braun, Chem. Ber., 37. 3210 (1904); 32, 4351 (1906); 40 3914 e 3930 (1907);42, 2048 r 3In the patents ES 2006888 and ES 2006889 processes are described which consist of distinct types of final cyclization of the isoxazole ring. The preparation of N-alkyl- or N-arylpiperidines, on which the present invention is based, is described in the chemical literature, both by reaction of 1,5-dihalo-pentanes with primary amines (J. von Braun, Chem. Ber., 37, 3210 (1904), 32, 4351 (1906), 403914 and 3930 (1907);
e 2052 (1909), como por reacção de 1,5-bis-alquil- ou aril sulfoniloxipentanos e aminas primárias (K. Reynolds, J. Aaer. Chem. Soc., 72, 1597 (1950)).and 2052 (1909), or by reaction of 1,5-bis-alkyl- or arylsulfonyloxypentanes and primary amines (K. Reynolds, J.A.Chem.Soc., 72, 1597 (1950)).
MEMÓRIA DESCRITIVA DO INVENTO O processo para a obtenção da 3-{2-[4-(6-fluoro--benzo[d]isoxazol-3-il)-piperidin-l-il]-etil}-2-metil--6,7,8,9-tetra-hidro-4H-pirido[1,2-a]pirimidin-4-ona da fórmula I, objecto do presente invento, consiste em se fazer reagir a 3-(2-aminoetil)-2-metil-6,7,8,9-tetra-hidro-4H-pi-rido[l,2-a]pirimidin-4-ona da fórmula II com os produtos da fórmula geral III, em que Y e Z são grupos separáveis, tais como halogénio ou um grupo alquil- ou arilsulfoniloxi, podendo Y e Z ser iguais ou distintos entre si, de acordo com o seguinte esquema:The process for the preparation of 3- {2- [4- (6-fluoro-benzo [d] isoxazol-3-yl) -piperidin-1-yl] -ethyl} -2- 6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one of formula I, object of the present invention, is to react 3- (2-aminoethyl) - 2-a] pyrimidin-4-one of the formula II with the products of the general formula III, wherein Y and Z are leaving groups, such as halogen or an alkyl- or arylsulfonyloxy group, Y and Z being the same or different from each other, according to the following scheme:
I A reacção efectua-se num solvente polar, nomeadamente um álcool de baixo peso molecular, como metanol, etanol, isopropanol ou n-butanol, de preferência etanol, ou em solventes apróticos polares como acetonitrilo, N,N,-dime-tilformamida ou N-metil-pirrolidona, de preferência acetonitrilo, em presença de uma base orgânica, tal como trietil-amina, ou inorgânica, tal como um hidróxido, ura carbonato ou um bicarbonato alcalino, a uma temperatura compreendida entre 40 e 120°C, de preferência a 80°C. O produto I obtido é isolado pelos métodos convencionais e purificado por recristalização.The reaction is carried out in a polar solvent, namely a low molecular weight alcohol, such as methanol, ethanol, isopropanol or n-butanol, preferably ethanol, or in polar aprotic solvents such as acetonitrile, N, N-dimethylformamide or N methyl pyrrolidone, preferably acetonitrile, in the presence of an organic base, such as triethylamine, or inorganic, such as an alkali hydroxide, carbonate or bicarbonate, at a temperature of from 40 to 120 ° C, preferably at 80 ° C. The product I obtained is isolated by conventional methods and purified by recrystallization.
Os compostos das fórmulas II e III, necessários para o desenvolvimento do processo que se reivindica, não foram descritos anteriormente e são também objecto do presente invento. A 3-(2-aminoetil)-2-metil-6,7,8,9-tetra-hidro-4H--pirido[l,2-a]pirimidin-4-ona da fórmula II pode ser obtida de acordo com o esquema de síntese seguinte: 5 - ΛThe compounds of the formulas II and III, necessary for the development of the claimed process, have not been described above and are also the object of the present invention. The 3- (2-aminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one of formula II can be obtained according to the following scheme of synthesis: 5 - Λ
A reacção de substituição do cloro na 3-(2-cloro-etil)-2-metil-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]piri-midin-4-ona (IV) (JP 52005797; H.Fujita, Ann. Rep. Sankyo Res. Lab. 29 75-98 (1977)) por dibenzilamina para dar a 3-(2-dibenzilaminoetil)-2-roetil-6,7,8,9-tetra-hidro-4H-piri-do[l,2-a]pirimidin-4-ona (V) realiza-se num solvente apropriado, tal como acetonitrilo, Ν,Ν-dimetilformamida, N-me-tilpirrolidona ou metanol, em presença de uma base orgânica, nomeadamente um hidróxido, um carbonato ou um bicarbonato alcalino, ou de uma base orgânica, nomeadamente r trietanolamina, e a uma temperatura compreendida entre 50 e 100°C, de preferência entre 70 e 90°C. Adicionalmente, pode introduzir-se um iodeto alcalino no meio de reacção, como catalisador. A hidrogenação da 3-(2-dibenzilaminoetil)-2-metil--6,7,8,9-tetra-hidro-4H-pirido[l,2-a]pirimidin-4-ona (V) para dar a 3-(2-aminoetil)-2-metil-6,7,8,9-tetra-hidro-4H--pirido[l,2-a]pirimidin-4-ona da fórmula II realiza-se num solvente inerte, tal como metanol, etanol, isopropanol ou misturas dos referidos alcoóis com ãgua, em proporções distintas, a uma temperatura compreendida entre 20 e 60°C, de preferência entre 45 e 55°C, e a uma pressão de hidrogénio compreendida entre 1 e 20 atmosferas, de preferência a uma pressão ligeiramente superior à atmosférica, em presença de um catalisador de paladio/carbono numa proporção situada entre 5 e 15%, em peso, relativamente ao produto de partida V. Os produtos V e II isolam-se pelos métodos convencionais e não requerem posterior purificação.The chloro substitution reaction on 3- (2-chloroethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one (1977)) for dibenzylamine to give 3- (2-dibenzylaminoethyl) -2-ethyl-6,7,8-tetrahydro-1H- , 9-tetrahydro-4 H -pyrimido [1,2-a] pyrimidin-4-one (V) is carried out in a suitable solvent, such as acetonitrile, Ν, Ν-dimethylformamide, N-methylpyrrolidone or methanol in the presence of an organic base, in particular an alkali hydroxide, carbonate or bicarbonate, or an organic base, namely triethanolamine, and at a temperature of from 50 to 100 ° C, preferably from 70 to 90 ° C . In addition, an alkali iodide may be introduced into the reaction medium as a catalyst. Hydrogenation of 3- (2-dibenzylaminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one (V) to give 3- - (2-aminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one of formula II is carried out in an inert solvent, such as such as methanol, ethanol, isopropanol or mixtures of said alcohols with water, in different proportions, at a temperature in the range of 20-60 ° C, preferably 45-55 ° C, and at a hydrogen pressure of 1 to 20 atmospheres , preferably at a slightly higher pressure than atmospheric pressure, in the presence of a palladium / carbon catalyst in a proportion of 5 to 15% by weight with respect to the starting material V. Products V and II are isolated by conventional methods and do not require further purification.
Os compostos da fórmula geral III podem obter-se segundo um esquema de sintese de cinco passos. 0 cloreto de 4-tetra-hidropiranocarbonilo (VI) (J. Gibson, J. Chem. Soc., 2525 (1930)) e o 1,3-difluorobenzeno (VII) reagem em presença de tricloreto de alumínio anidro para dar o produto de acilação de Friedel-Crafts (2,4-di-fluoro-fenil)-(tetra-hidro-piran-4-il)metanona da fórmula VIII, quer seja num meio solvente adequado, tal como diclo-rometano ou 1,2-dicloroetano quer actuando como solvente em excesso do próprio 1,3-difluorobenzeno. A reacção efectua-se a uma temperatura entre 40 e 85°C, de preferência a cerca de 80°C. 0 produto isola-se pelos métodos convencionais e purifica-se por recristalização. A obtenção da oxima do composto VIII é efectuada por reacção dele mesmo com cloridrato de hidroxilamina 7 - iThe compounds of general formula III can be obtained according to a five-step synthetic scheme. The 4-tetrahydropyranocarbonyl chloride (VI) (J. Gibson, J. Chem. Soc., 2525 (1930)) and 1,3-difluorobenzene (VII) react in the presence of anhydrous aluminum trichloride to give the product (2,4-difluorophenyl) - (tetrahydro-pyran-4-yl) methanone of formula VIII, whether in a suitable solvent medium, such as dichloromethane or 1,2- dichloroethane or by acting as the solvent in excess of the 1,3-difluorobenzene itself. The reaction is carried out at a temperature between 40 and 85øC, preferably at about 80øC. The product is isolated by conventional methods and purified by recrystallization. The oxime of compound VIII is obtained by reacting it with hydroxylamine hydrochloride 7-i
segundo os processos clássicos (ver, por exemplo, "Advanced Organic Chemistry" J. March, 4» Edição, pág. 906). Obtem-se uma mistura (75:25) dos isómeros sin e anti da oxima da (2,4-difluorofenil)-(tetra-hidropiran-4-il)metanona da fórmula IX. Esta mistura de isómeros isola-se pelos métodos convencionais e, ou se pode utilizar para a reacção seguinte sem separação prévia dos referidos isómeros, ou se pode isolar a oxima sin maioritária por cromatografia de coluna sobre gel de sílica. 8according to the classical methods (see, for example, " Advanced Organic Chemistry " J. March, 4, Edition, page 906). A mixture (75:25) of the syn and anti isomers of (2,4-difluorophenyl) - (tetrahydropyran-4-yl) methanone oxime of formula IX is obtained. This mixture of isomers is isolated by conventional methods and can be used for the next reaction without prior separation of said isomers or the major oxime oxime can be isolated by column chromatography on silica gel. 8
X Ν-ΟX Ν
Ν-Ο(I.e.
Υ, Ζ = Cl, Br, I, CH3-S03-, p-CH3-C6H4-S03-Υ e Ζ iguais ou distintos entre si r A ciclização da mistura de oximas IX ou do correspondente isómero sin ao 6-fluoro-3-(tetra-hidropiran-4-il)-benzo[d]isoxazole da fórmula X realiza-se num solvente e em presença de uma base adequada, como metanol, etanol e um hidróxido, carbonato ou bicarbonato alcalino ou então tetra-hidrofurano ou dioxano e um hidreto ou alcõxido alcalino. De preferência, utiliza-se metanol e hidróxido de potássio. A reacção efectua-se a temperaturas entre 50 e 100°C, de preferência à temperatura de ebulição da mistura de reacção. 0 produto X é isolado pelos métodos convencionais. Deve-se separar do isómero não reagente da oxima IX de partida por cromatografia de coluna sobre gel de sílica, em caso de se ter utilizado, como produto de partida, a mistura de oximas. A abertura do éter tetra-hidropiranílico no 6-fluoro-3-(tetra-hidropiran-4-il)benzo[d]isoxazole (X) efectua-se utilizando-se uma série de reagentes segundo a natureza dos grupos X e Z que se pretendam nos compostos da fórmula geral III.The cyclization of the mixture of oximes IX or the corresponding sin isomer to 6-fluoro-3-pyridazin-3-yl, - (tetrahydropyran-4-yl) benzo [d] isoxazole of formula X is carried out in a solvent and in the presence of a suitable base, such as methanol, ethanol and an alkali hydroxide, carbonate or bicarbonate or tetrahydrofuran or dioxane and an alkali metal hydride or alkoxide. Preferably, methanol and potassium hydroxide are used. The reaction is carried out at temperatures between 50 and 100 ° C, preferably at the boiling temperature of the reaction mixture. The product X is isolated by conventional methods. The starting oxime IX should be separated from the non-reactive isomer of the starting oxime IX by column chromatography on silica gel, if the mixture of oximes is used as the starting material. The opening of the tetrahydropyranyl ether in 6-fluoro-3- (tetrahydropyran-4-yl) benzo [d] isoxazole (X) is carried out using a series of reagents according to the nature of the groups X and Z which are desired in the compounds of the general formula III.
Assim, por exemplo, o tribrometo de fósforo em presença de ácido bromídrico ou ácido fosfórico a 140°C (P. Volynskii, Izv. Akad. Nauk. SSSR Ser. Khim. 11, 2528 (1979), C.A. 92., 128341 (1980)) proporciona directamente III (Y=Z=Br). 0 tratamento de X, quer seja com brometo de acetilo em presença de cloreto de zinco como catalisador (V. N. Odinov, Khim Prir. Soedin.(2), 272-6 (1989)), quer com brometo magnésico anidro em anidrido acético (D.J. Goldsmith, J. Org. Chem. Chem. 40, 3571 (1975)), seguido de saponificação do bromo-acetato obtido com carbonato de potássio em metanol à temperatura ambiente, proporciona o bromo-álcool XI (Y=Br). Analogamente, obtem-se XI (Y=I) por tratamento de X com iodeto de acetilo em acetonitrilo a refluxo (A. Oku, Tetrahedron Lett. 23., 681 (1982)), seguido por saponificação do iodo-acetato intermediário obtido.Thus, for example, phosphorus tribromide in the presence of hydrobromic acid or phosphoric acid at 140Â ° C (P. Volynskii, Izv. Akad, Nauk SSSR Ser., 11, 2528 (1979), CA 92, 128341 1980)) directly provides III (Y = Z = Br). Treatment of X with either acetyl bromide in the presence of zinc chloride as catalyst (VN Odinov, Khim Prir. Soedin. (2), 272-6 (1989)) or with anhydrous magnesium bromide in acetic anhydride (DJ Goldsmith, J. Org. Chem., 40, 3571 (1975)), followed by saponification of the bromoacetate obtained with potassium carbonate in methanol at room temperature affords bromo-alcohol XI (Y = Br). Analogously, XI (Y = I) is obtained by treatment of X with acetyl iodide in refluxing acetonitrile (A. Oku, Tetrahedron Lett., 23, 681 (1982)), followed by saponification of the obtained intermediate iodoacetate.
Os halo-alcoóis da fórmula geral XI transformam-se nos produtos da fórmula geral III di-halogenados por tratamento com os reagentes clássicos de halo-desidroxilação de alcoóis tais como cloreto de tionilo, tri- e pentacloreto de fósforo, oxitricloreto de fósforo e tribrometo de fósforo (ver, por exemplo, "Advanced Organic Chemistry", J. March, 4a Edição, pág. 433). Do mesmo modo, o tratamento dos halo-alcoóis XI com um haleto de alquil- ou aril-sulfonilo, tal como cloreto de metano-sulfonilo ou de p-tolueno-sulfo-nilo, proporciona os correspondentes halo-metano-sulfonatos ou halo-p-tolueno-sulfonatos III. PARTE EXPERIMENTAL Exemplo 1 3-(2-dibenzilaminoetil)-2-metil-6.7.8.9-tetra-hidro-4H-pjri-doΓ1.2-alpjrimidin-4-ona (V). A uma solução de 25 g (0,1104 mol) de 3-(2-cloro-etil)-2-meti1-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]piri-midin-4-ona em 125 ml de acetonitrilo adicionam-se 14 g (0,1666 mol) de bicarbonato de sódio e 24 g (0,1218 mol) de dibenzilamina. A mistura reflui durante 16 h. Reduz-se a temperatura para 5°C e agita-se durante 30 minutos a essa temperatura. Filtra-se por sucção, o sólido é suspenso em 125 ml de água e a mistura é aquecida a 60°C com agitação durante 1 h. Deixa-se arrefecer a suspensão à temperatura ambiente e agita-se durante 30 min. Filtra-se o sólido por sucção e seca-se sob vácuo a 40°C. Obtem-se 35,7 g de sólido branco.The halo alcohols of the general formula XI are converted into the dihalogenated general formula III products by treatment with the conventional halo-dehydroxylation reagents of alcohols such as thionyl chloride, phosphorus tri- and pentachloride, phosphorus oxychloride and tribromide of phosphorus (see, for example, " Advanced Organic Chemistry ", J. March, 4th Edition, page 433). Likewise, treatment of the halo alcohols XI with an alkyl- or arylsulfonyl halide, such as methanesulfonyl chloride or p-toluenesulphonyl, affords the corresponding halo-methanesulphonates or halo- p-toluenesulfonates III. EXPERIMENTAL EXAMPLE 1 3- (2-Dibenzylaminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrrolo [2,1-a] pyrimidin-4-one (V). To a solution of 25 g (0.1104 mol) of 3- (2-chloro-ethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2- a] pyr 4-one in 125 ml of acetonitrile is added 14 g (0.1666 mol) of sodium bicarbonate and 24 g (0.1218 mol) of dibenzylamine. The mixture was refluxed for 16 h. The temperature is reduced to 5øC and stirred for 30 minutes at that temperature. Filtration by suction, the solid is suspended in 125 ml of water and the mixture is heated at 60 ° C with stirring for 1 h. The suspension is allowed to cool to room temperature and stirred for 30 min. The solid is filtered off under suction and dried under vacuum at 40 ° C. 35.7 g of white solid are obtained.
Rdto.: 84%.Yield: 84%.
111°C111 ° C
Ponto de fusão: 110 11 - ΛMelting point: 110 11 - Λ
IR (KBr), cm1 : 3020, 2980-2800, 1655, 1588, 1533, 1444, 1188, 744, 694. RMN, (CDCL3), S(ppm) dona) dona) 7,40-7,15 (sc, 10H; aromáticos) 3,80 (t J-6, 2H; ch2 piridopirimi- 3,65 (s, 4H; CH2 benzilo) 2,85 (t J—6, 2H; CH2 piridopirimi- 2,70 (sc, 2H; CH2 etileno) 2,60 (sc, 2H; CH2 etileno) 2,10 (s, 3H; CH3) 1,90 (sc, 4H; CH2 piridopirimido- na) .IR (KBr), cm -1: 3020, 2980-2800, 1655, 1588, 1533, 1444, 1188, 744, 694. NMR (CDCl3), δ (ppm) dona) dona) 7.40-7.15 (sc , 2.60 (t, J = 6.4 Hz, 2H), 2.25 (s, 2H, aromatic) 2H, CH2 ethylene), 2.60 (sc, 2H, CH2 ethylene), 2.10 (s, 3H, CH3), 1.90 (sc, 4H, CH2 pyridopyrimidone).
Anâlise elementar: % Calculada: % Encontrada: C25H29N3° (Ρ'Μ·: 387'53> C-77,49 H-7,54 N-10,84 C-77,36 H-7,59 N-10,77Elemental analysis:% Calc'd:% Found: C 25 H 29 N 3 O (Ρ'Μ ·: 387.53> C-77.49 H-7.54 N-10.84 C-77.36 H-7.59 N- 77
Exemplo 2 3-(2-aminoetil)-2-meti1-6,7,8,9-tetra-hidro-4H-piridor1.-2-alpirimidin-4-ona (II). A uma suspensão de 20g (0,0517 mol) de 3-(2-diben-zil-amino-etil)-2-metil-6,7,8,9-tetra-hidro-4H-pirido[-1,2-a]pirimidin-4-ona em 100 ml de etanol adicionam-se 2 g de Pd/C a 10% e com 50% de humidade. A mistura hidrogena-se a 45—50°C até absorção de aproximadamente 2,7 1 de hidrogénio. Deixa-se arrefecer ã temperatura ambiente, filtra-se o catalisador através de decalite e elimina-se o solvente sob vácuo obtendo-se um resíduo oleoso que cristaliza por tratamento com heptano. Seca-se sob vazio à temperatura ambiente, obtendo-se 9,3 g de sólido branco.Example 2 3- (2-Aminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido1,2-appyrimidin-4-one (II). To a suspension of 20 g (0.0517 mol) of 3- (2-dienenyl-amino-ethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [ -one] pyrimidin-4-one in 100 ml of ethanol is added 2 g of 10% Pd / C and 50% moisture. The mixture is hydrogenated at 45-50øC until up to about 2.7 l of hydrogen is absorbed. The reaction mixture is allowed to cool to room temperature, the catalyst is filtered through decalite and the solvent is removed under vacuum to give an oily residue which crystallizes by treatment with heptane. Dry under vacuum at room temperature to give 9.3 g of white solid.
Rdto.; 88%.Rdto .; 88%.
Ponto de fusão: 126°C IR (KBr), cm1 : 3322, 2944, 1655, 1588, 1527, 1322, 1194 RMN, (CDCL3), δ(ppm) dona) dona e € ƒâ € ƒâ € ƒMelting point: 126 ° C IR (KBr), cm -1: 3322, 2944, 1655, 1588, 1527, 1322, 1194 NMR, (CDCl3), δ (ppm)
Análise elementar: % Calculada: % Encontrada: 3.90 (t J=6, 2H; CH2 piridopirimi-2,85 (t J=7, 4H; CH2 piridopirimi-CH2 etileno) 2.70 (t, J=7, 2H; CH2 etileno) 2,30 (s, 3H; CH3) 1.90 (sc, 4H; CH2 piridopirimidona) 1.70 (sa, 2H; NH2, deut.). C11 H17 N3 ° 207,28) C-63,74 H-8,27 N-20,27 C-63,69 H-8,26 N-20,35Elemental analysis:% Calc'd:% Found: 3.90 (t J = 6, 2H; CH2 pyridopyrim-2.85 (t J = 7.4H, CH2 pyridopyrimi-CH2 ethylene) 2.70 (t, J = 7, 2H, CH2 ethylene ) 2.30 (s, 3H, CH3) 1.90 (sc, 4H; CH2 pyridopyrimidone) 1.70 (s, 2H, NH2, deut.) C11 H17 N3 O 207.28) C, 63.74; H, 8.27 N, 20.27. C, 63.69; H, 8.26, N, 20.35.
Exemplo 3 (2.4—difluorofenil)-(tetra-hidropiran-4-iH-metanona (VIII). A uma suspensão agitada de 61,3 g (0,460 mol) de tricloreto de alumínio anidro em 113 rol de 1,3-difluoroben-zeno, adiciona-se, gota-a-gota, 34,1 g (0,229 mol) de cloreto de 4-tetra-hidropira-nocarbonilo. A mistura reflui durante 20 h, deixa-se arrefecer à temperatura ambiente e a mistura de reacção é vertida sobre 500 g de gelo e 50 ml de ácido clorídrico concentrado. Extrai-se três vezes com 200 ml de diclorometano. As fases orgânicas reunidas são lavadas com solução aquosa saturada de sal e secas sobre sulfato de sódio anidro. Evapora-se o solvente sob vácuo obtendo-se um óleo que cristaliza. Recristaliza-se com heptano, obtendo-se 41,4 g de sólido branco.To a stirred suspension of 61.3 g (0.460 mol) of anhydrous aluminum trichloride (113.3 g) of 1,3-difluorobenzen- benzene, 34.1 g (0.229 mol) of 4-tetrahydropyranocarbonyl chloride are added dropwise. The mixture is refluxed for 20 h, cooled to room temperature and the reaction mixture is poured into 500 g of ice and 50 ml of concentrated hydrochloric acid, extracted three times with 200 ml of dichloromethane.The combined organic phases are washed with brine and dried over anhydrous sodium sulfate. solvent in vacuo to give an oil which crystallizes. It is recrystallized from heptane to give 41.4 g of white solid.
Rdto.: 80%.Yield: 80%.
Ponto de fusão: 50 - 5l°C IR (KBr), cm1 : 3054, 2964, 1093. RMN, (CDCL3), í(ppm) : 7,85 6,90 4,05 3,50 3,30 1,85 Análise elementar: C12 % Calculada: C—63 % Encontrada: C-63 2845, 1680, 1605, 1485, 1421, (ddd, 1H; aromático) (m, 2H; aromático) (dt, 2H; H-eq-a-O-THP) (m, 2H; H-ax-or-O-THP) (m, 1H; CH-C=0) (sc, 4H; THP). H12 F2 02 (P.M.: 226,22) 71 H-5,35 F-16,80 65 H-5,38 F-16,75IR (KBr), cm -1: 3054, 2964, 1093. NMR (CDCl3): δ (ppm): 7.85 6.90 4.05 3.50 3.30 1, Elemental analysis: C12% Calculated: C-63% Found: C-632845, 1680, 1605, 1485, 1421, (ddd, 1H, aromatic) (m, 2H, aromatic) (dt, 2H, H-eq- (m, 2H, H-ax-or-O-THP) (m, 1H, CH-C = O) (sc, 4H; THP). H 12 F 2 O 2 (M.P .: 226.22) 71 H-5.35 F-16.80 65 H-5.38 F-16.75
Exemplo 4Example 4
Oxima da (2.4-difluorofenil)-(tetra-hidropiran-4-il^-metano-na ΠΧΪ. A uma solução de 31 g (0,137 mol de (2,4-difluoro-fenil)-(tetra-hidropiran-4-il)-metanona em 100 ml de etanol adiciona-se 10 g (0,144 mol) de cloridrato de hidroxilamina dissolvidos em 50 ml de água e 20 g (0,147 mol) de tri-hi-drato de acetato de sódio. A solução resultante reflui durante 10 h. Deixa-se arrefecer a mistura e evapora-se o etanol sob vácuo. Adiciona-se 100 ml de água, deixa-se arrefecer a suspensão resultante a 5°C e filtra-se o sólido, que se lava com água gelada e se seca a 40°C. Obtem-se 32,24 g de um sólido branco que é uma mistura (3:1) de oximas sin/anti.To a solution of 31 g (0.137 mol of (2,4-difluorophenyl) - (tetrahydro-pyran-4-yl) -methanone) yl) -methanone in 100 ml of ethanol is added 10 g (0.144 mol) of hydroxylamine hydrochloride dissolved in 50 ml of water and 20 g (0.147 mol) of sodium acetate trihydrate. The mixture is allowed to cool and the ethanol is evaporated under vacuum 100 ml of water is added, the resulting suspension is allowed to cool to 5øC and the solid is filtered, washed with water cooled and dried at 40 DEG C. 32.24 g of a white solid which is a mixture (3: 1) of sin / anti oximes is obtained.
Rdto.: 98%. 14 A oxima siri desejada separa-se do seu isómero por cromatografia sobre gel de sílica, utilizando-se hetano/acetato de etilo (7:3) como eluente.Diethyl .: 98%. The desired sine oxime is separated from its isomer by chromatography on silica gel using hexane / ethyl acetate (7: 3) as the eluent.
Ponto de fusão: 115 - H6°c IR (KBr), cm1 : 3323, 2936, 2850, 1617, 1505, 1421, 1110, 969, 845. RMN, (CDCL3), δ(ppm)IR (KBr), cm -1: 3323, 2936, 2850, 1617, 1505, 1421, 1110, 969, 845. NMR, (CDCl3), δ (ppm)
Análise elementar: % Calculada: % Encontrada: 8,10 (s, 1H; N-OH, deut.) 7,15 (ddd, 1H; aromático) 6,95 (m, 2H; aromático) 4,00 (dt, 2H; H-eq-a-O-THP) 3,40 (m, 2H; H-ax-a-O-THP) 2.70 (m, 1H; CH-C=0) 1.70 (sc, 4H; THP). C12H13F2N°2 <P'M*: 241'63> C-59,65 H-5,42 F-13,24 N-5,80 C-59,61 H-5,48 F-13,19 N-5,82Elemental analysis:% Calculated:% Found: 8.10 (s, 1H, N-OH, deuter.) 7.15 (ddd, 1H, aromatic) 6.95 (m, 2H, aromatic) 4.00 (dt, 2H, H-eq-a0-THP) 3.40 (m, 2H; H-ax-aO-THP) 2.70 (m, 1H, CH-C = O) 1.70 (sc, 4H; THP). C12H13F2NO2 < P'M *: 241'63 > C-59.65 H-5.42 F-13.24 N-5.80 C-59.61 H-5.48 F-13.19 N-5.82
Exemplo 5 6-fluoro-3-(tetra-hidropiran-4-il^-benzordlisoxazole (ΧΪ.Example 5 6-fluoro-3- (tetrahydropyran-4-yl) -benzordisoisoxazole (ΧΪ.
Adiciona-se 10 g (0,0415 mol) da oxima sin da (2,4-difluorofenil)-(tetra-hidropiran-4-il)-metanona a uma solução de 3 g (0,0454 mol) de hidróxido de potássio a 85% em 100 ml de metanol. A mistura reflui durante 1 h. Deixa-se arrefecer à temperatura ambiente e evapora-se o solvente até à secura. Adiciona-se 50 ml de água. A suspensão resultante é agitada durante 15 minutos e filtra-se o sólido, que é bem lavado com água. O sólido branco obtido é seco sob vazio a 40°C. Obtem-se 9,0 g de 6-fluoro-3-(tetra-hidropiran-4-il)--benzo[d]isoxazole.To a solution of 3 g (0.0454 mol) of potassium hydroxide (10 g, 0.0415 mol) of the (2, 4-difluorophenyl) - (tetrahydropyran-4-yl) -methanone oxime to 85% in 100 ml of methanol. The mixture was refluxed for 1 h. Allow to cool to room temperature and evaporate the solvent to dryness. 50 ml of water is added. The resulting suspension is stirred for 15 minutes and the solid is filtered, which is washed well with water. The white solid obtained is dried under vacuum at 40 ° C. 9.0 g of 6-fluoro-3- (tetrahydropyran-4-yl) benzo [d] isoxazole is obtained.
Rdto.: 98%.Diethyl .: 98%.
Ponto de fusão: 86 - 87°C IR (KBr), cm1 : 2956, 2858, 1612, 1498, 1240, 1123, 840. RMN, (CDCL3), S(ppm) : 7,65 (dd, 1H; aromático) 7,25 (dd, 1H; aromático) 7,05 (ddd, 1H; aromático) 4,10 (dt, 2H; H-eq-a-O-THP) 3,60 (ddd, 2H; H-ax-e-O-THP) 3,35 (m, 1H; CH-C=N) 2,10 (sc, 4H; THP). Análise elementar: C12H12FN°2 221,23) % Calculada: C-65,15 H—5,47 F-8,59 N-6,33 % Encontrada: C-65,22 H-5,52 F-8,65 N-6,29Melting point: 86-87Â ° C IR (KBr), cm -1: 2956, 2858, 1612, 1498, 1240, 1123, 840. NMR (CDCl3), Î'(ppm): 7.65 (dd, 1H, aromatic ) 7.25 (dd, 1H, aromatic) 7.05 (ddd, 1H, aromatic) 4.10 (dt, 2H, H-eq-a0-THP) 3.60 (ddd, 2H, H-ax-eO -THP) 3.35 (m, 1H; CH-C = N) 2.10 (sc, 4H; THP). Elemental analysis: C 12 H 12 FN 2 221.23)% Calculated: C-65.15 H-5.47 F-8.59 N-6.33% Found: C 65.22 H 5.52 F 8, 65 N-6.29
Exemplo 6 3-(6-fluoro-benzordlisoxazol-3-iH-5-iodopentan-l-ol_f XI.Example 6 3- (6-fluoro-benzisoxazol-3-yl) -5-iodopentan-1-ol.
X=IU A 3,4 g (0,0154 mol de 6-fluoro-3-(tetra-hidropi-ran-4-il)-benzo[d]isoxazole dissolvidos em 20 ml de acetoni-trilo seco adiciona-se sucessivamente 8,147 g (0,054 mol) de iodeto de sódio e 3,3 ml (0,0462 mol) de cloreto de acetilo, A mistura reflui sob atmosfera azoto seco durante 8 h. A mistura de reacção deixa-se arrefecer à temperatura ambiente e é vertida sobre uma solução de 20 g de metabissulfito de sódio em 60 ml de água. Evapora-se o acetonitrilo sob vácuo e extrai-se três vezes com 50 ml de diclorometano. As fases orgânicas reunidas são lavadas com 50 ml de solução aquosa saturada de sal e são secas sobre sulfato de sódio anidro. Evapora-se o solvente sobre vacuo e o resíduo oleoso é dissolvido em 20 ml de metanol. Adiciona-se 2,13 g (0,0154 Λ3.4 g (0.0154 mol of 6-fluoro-3- (tetrahydropyran-4-yl) benzo [d] isoxazole dissolved in 20 ml of dry acetonitrile is added successively The mixture was refluxed under nitrogen and dried over anhydrous magnesium sulfate solution. The reaction mixture was allowed to cool to room temperature and was cooled to -78 ° C. poured into a solution of 20 g of sodium metabisulfite in 60 ml of water.The acetonitrile was evaporated under vacuum and extracted three times with 50 ml of dichloromethane.The combined organic phases were washed with 50 ml of saturated aqueous solution of The solvent is evaporated in vacuo and the oily residue is dissolved in 20 ml of methanol 2.13 g (0.0154 mol) of
mol) de carbonato de potássio anidro e a mistura é agitada à temperatura ambiente durante 30 minutos. Adiciona-se 7,8 ml de ácido clorídrico 3N, evapora-se o metanol sob vácuo e o resíduo é repartido entre 20 ml de água e 20 ml de dicloro-metano. Separa-se a fase orgânica, que é seca sobre sulfato de sódio anidro e evapora-se o solvente até à secura, sob vácuo. Obtem-ae 3,54 g de um óleo dc 3-(6-fluoro-benzo[d]— isoxazol-3-il)-5-iodopentan-l-ol.mol) of anhydrous potassium carbonate and the mixture is stirred at room temperature for 30 minutes. 7.8 ml of 3N hydrochloric acid are added, the methanol is evaporated under vacuum and the residue is partitioned between 20 ml of water and 20 ml of dichloromethane. The organic phase is separated, which is dried over anhydrous sodium sulfate and the solvent is evaporated to dryness under vacuum. There is obtained 3.54 g of a 3- (6-fluoro-benzo [d] -isoxazol-3-yl) -5-iodopentan-1-ol oil.
Rdto.: 66%.Diethyl .: 66%.
O produto pode ser purificado por cromatografia de coluna sobre gel de sílica, utilizando-se heptano/acetato de etilo (7:3) como eluente.The product can be purified by silica gel column chromatography using heptane / ethyl acetate (7: 3) as the eluent.
IR (KBr), cm 3400, 3100, 2950, 1615, 1500, 1280, 1120, 1050, 960, 840 • RMN, (CDCL3), S(ppm) : 7,75 (dd, 1H; aromático) 7,25 (sss , 1H ; aromático) 7,10 (ddd , 1H ; aromático) 3,65 (sc, 3H; CH—C=N e CH2-OH) 3,15 (m, 2H; CH2_I) 2,40 (m, 2H; ch2-ch2-oh) 2,10 (m, 2H; ch2-ch2-i) 1,70 (s, 1H; -OH, deut.) Análise elementar: C12H13FIN°2 (P.M.: 349,14) % Calculada: N-4,01 % Encontrada: N-3,95 C-41,28 H-3,75 F-5,44 1-36,35 C-41,32 H-3,82 F-5,39 1-36,24 17 17IR (KBr) cm-1: 3400, 3100, 2950, 1615, 1500, 1280, 1120, 1050, 960, 840 â € ƒâ € ƒâ € ƒNMR (CDCl3), Î'(ppm): 7.75 (dd, 1H, aromatic) 7.25 (s, 1H, aromatic) 7.10 (ddd, 1H, aromatic) 3.65 (sc, 3H, CH-C = N and CH 2 -OH) 3.15 (m, 2H, CH 2, , 2H), 2.10 (m, 2H, ch2-ch2-i), 1.70 (s, 1H, -OH, deut.) Elemental analysis: C 12 H 13 FIN 2 (MW: 349.14) % Calc'd: N-4.01% Found: N = 3.95 C-41.28 H-3.75 F-5.44 1-36.35 C-41.32 H-3.82 F- 39 1-36,24 17 17
Exemplo 7Example 7
Metanossulfato de 2-(6-fluoro-benzordiisoxazol-3-il)-4-iodo--pentilo ΠΙΙ. X=I. Y=-0-S02-CH3) A uma solução de 3,533 g (0,01 mol) de 3-(6-fluo-ro-benzo[d]isoxazol-3-il)-5-iodopentan-l-ol em 20 ml de diclorometano seco, pré-arrefecida a 0°C, adiciona-se sucessivamente 2 ml (0,0143 mol) de trietilamina e 1,1 ml (0,0143 mol) de cloreto de metanossulfonilo em 10 ml de diclorometano. A mistura é agitada a 0 - 5°C durante 1 hora. Adiciona-se 20 ml de água, decanta-se e extrai-se duas vezes a fase aquosa com 20 ml de diclorometano. As fases orgânicas reunidas são sucessivamente lavadas com 20 ml de ácido clorídrico IN com 20 ml de solução aquosa saturada de sal. Seca-se sobre sulfato de sódio anidro e evapora-se o solvente até à secura, proporcionando 3,48 g de um óleo de metanossulfato de 2-(6—fluoro-benzo[d]isoxazol—3—il)—4—iodo—penti-lo.2- (6-Fluoro-benzisoxazol-3-yl) -4-iodo-pentyl-methanesulfate. X = I. Y = -O-S02 -CH3) To a solution of 3.533 g (0.01 mol) of 3- (6-fluoro-benzo [d] isoxazol-3-yl) -5-iodopentan- 20 ml of dry dichloromethane, pre-cooled to 0Â ° C, 2 ml (0.0143 mol) of triethylamine and 1.1 ml (0.0143 mol) of methanesulfonyl chloride in 10 ml of dichloromethane are successively added. The mixture is stirred at 0-5 ° C for 1 hour. Add 20 ml of water, decant and extract the aqueous phase twice with 20 ml of dichloromethane. The combined organic phases are successively washed with 20 ml of 1N hydrochloric acid with 20 ml of saturated aqueous brine. Dry over anhydrous sodium sulfate and evaporate the solvent to dryness, yielding 3.48 g of a 2- (6-fluoro-benzo [d] isoxazol-3-yl) -4-iodo methanesulfonate oil I thought.
Rdto.: 81% . IR (KBr), cm1 : 3090, 2930, RMN, (CDCL3), δ(ppm) : 7,75 7,30 7.15 4,20 3,60 3.15 2,95 2,35 1615, 1350, 1175, 955, 820. (dd, 1H; aromático) (dd, 1H; aromático) (ddd, 1H [; aromático (m, 2H; CH2-°3s) (m, 1H; CH-C=N) (m, 2H; CH2-1) (s, 3H; CH3-S03 -) (SC, 4H; CH, CH2-CH2-°3S->Yield: 81%. IR (KBr), cm -1: 3090, 2930, NMR, (CDCl 3), δ (ppm): 7.75 7.30 7.15 4.20 3.60 3.15 2.95 2.35 1615, 1350, 1175, 955, 820. (dd, 1H, aromatic) (dd, 1H, aromatic) (ddd, 1H, aromatic (m, 2H, CH2 -o3s) (m, 1H; -1) (s, 3H; CH 3 -SO 3 -) (SC, 4H; CH, CH 2 -CH 2 -? 3S->
1818
Análise elementar: C,„H,^FINO„S (P.M.: 426,73) 13 15 4 % Calculada: C-36,59 H-3,54 F-4,45 1-29,74 N-3,28 S-7,51 % Encontrada: C-36,62 H-3,60 F-4,50 1-29,69 N-3,33 S-7,60 8 € ƒâ € ƒâ € ƒElemental Analysis: Calculated: C-36.59 H-3.54 F-4.45 1-29.74 N-3.28 (m, S-7.51% Found: C-36.62 H-3.60 F-4.50 1-29.69 N-3.33 S-7.60
ExemploExample
3 — -Γ2 — Γ4—f 6-f luoro-benzof dl isoxazol-3-ϊΙΪ -piperidin-l-ill-eti-l>-2-metil-6.7.8.9-tetra-hidro-4H-piridor12-alPÍrimidin-4--ona3 m3-piperidin-1-yl] ethyl] -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin- 4-one3 m
Dissolve-se 20 g (0,08 mol) de 3-(2-aminoetil)-2--metil-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]pirimidin-4-ona e 34,2 g (0,08 mol) de metanossulfato de 2-(6-fluoro-benzo[d]-isoxazol-3-il)-4-iodo-pentilo em 300 ml de acetonitrilo. Adiciona-se 17 g (0,2 mol) de bicarbonato de sódio e a suspensão resultante é levada a ebulição durante 6 h. Arrefece-se à temperatura ambiente e evapora-se o solvente sob vácuo. Adiciona-se 300 ml de água e a suspensão é levada a ebulição durante 30 minutos com agitação.20 g (0.08 mol) of 3- (2-aminoethyl) -2-methyl-6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4 -one and 34.2 g (0.08 mol) of 2- (6-fluoro-benzo [d] -isoxazol-3-yl) -4-iodo-pentyl methanesulfate in 300 ml of acetonitrile. 17 g (0.2 mol) of sodium bicarbonate is added and the resulting suspension is boiled for 6 h. Cool to room temperature and evaporate the solvent in vacuo. Add 300 ml of water and the suspension is boiled for 30 minutes with stirring.
Arrefece-se ã temperatura ambiente e filtra-se o sólido ocre claro, que se lava com água e se seca a 50°C. Após recristalização com etanol, obtem-se 26,3 g de 3-{2-[4--(6-fluoro-benzo[d]isoxazol-3-il)-piperidin-l-il)-etil}-2--metil-6,7,8,9-tetra-hidro-4H-pirido[1,2-a]pirimidin-4-ona, como sólido branco.Cool to room temperature and filter the light ocher solid, which is washed with water and dried at 50 ° C. After recrystallization from ethanol, 26.3 g of 3- {2- [4- (6-fluoro-benzo [d] isoxazol-3-yl) -piperidin-1-yl) -ethyl} -2- 6,7,8,9-tetrahydro-4H-pyrido [1,2-a] pyrimidin-4-one as a white solid.
Rdto.: 80%.Yield: 80%.
Ponto de fusão: 170°C 19 IR (KBr), cm1 : 3060, 2944, 2800, 1650, 1527, 1122. RMN, (CDCL3), δ(ppm) : 7,75 7,25 7,05 3,95 3,15 2,85 2,75 2,55 2,30 2,10 1,90 (dd, 1H; aromático) (dd, 1H; aromático) (ddd, 1H; aromático) (t, 2H; CH2 piridopirimidina) (sc, 3H; piper.) (t, 2H; CH2 piridopirimidina) (sc, 2H; etileno) (sc, 2H; etileno) (s, 3H; CH3) (sc, 4H; piper.,piridopirim.) (sc, 6H; piper.,piridopirim.)Melting point: 170 ° C IR (KBr), cm -1: 3060, 2944, 2800, 1650, 1527, 1122. NMR, (CDCl 3), δ (ppm): 7.75 7.25 7.05 3.95 3.15 2.85 2.75 2.55 2.30 2.10 1.90 (dd, 1H, aromatic) (dd, 1H, aromatic) (ddd, 1H, aromatic) (t, 2H, CH2 pyridopyrimidine) (sc, 3H, CH 3) (sc, 4H, piper, pyridopyrim) (sc, 2H); , 6H, piper, pyridopyrim)
Análise elementar: C23H2?FN402 (P.M.: 410,49) % Calculada: % Encontrada: H-6,63 H-6,70 C—67,30 C-67,16 F—4,63 F—4,57 N—13,65 N-13,72Elemental analysis: C 23 H 22 FN 402 (MW: 410.49)% Calculated:% Found: H-6.63 H-6.70 C-67.30 C-67.16 F-4.63 F-4.57 N -13.65 N-13.72
Lisboa, 9 de Fevereiro de 1995Lisbon, 9 February 1995
JORGE CRUZJORGE CRUZ
Agente Oficial da Propriedade industrial RUA VICTOfi CQRDON, 10 - A 3a 1200 USBOAOfficial Agent of Industrial Property RUA VICTOfi CQRDON, 10 - A 3a 1200 USBOA
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| ES09400252A ES2074966B1 (en) | 1994-02-11 | 1994-02-11 | PROCEDURE FOR OBTAINING 3- (2- (4- (6-FLUORO-BENZO (D) ISOXAZOL-3-IL) PIPERIDIN-1-IL) -ETIL) -2-METHYL-6,7,8,9- TETRAHIDRO-4H-PIRIDO- (1,2-A) PIRIMIDIN-4-ONA. |
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| PT101654A PT101654B (en) | 1994-02-11 | 1995-02-09 | 3- (6-FLUORO-BENZO- (D) -ISOXAZOL-3-YL) PIPERIDIN-1-YL} -ETHYL] -2-METHYL-6,7, 8,9-TETRAHYDRO-4H-PYRIDO- {1,2-A} PYRIMIDIN-4-ONA |
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| ES2101646B1 (en) * | 1995-04-12 | 1998-04-01 | Ferrer Int | NEW COMPOUND DERIVED FROM CHROMENE. |
| ES2144355B1 (en) * | 1997-12-30 | 2001-01-01 | Ferrer Int | COMPOUNDS DERIVED FROM THE CHROME. |
| ATE264329T1 (en) * | 2000-05-05 | 2004-04-15 | Rpg Life Sciences Ltd | METHOD FOR PRODUCING ANTIPSYCHOTIC 3-(2-(4-(6-FLUORO-1,2-BENZISOXAZOLE-3-YL)-1- |
| ATE401313T1 (en) | 2000-08-14 | 2008-08-15 | Teva Pharma | PRODUCTION OF RISPERIDONE |
| ES2197801B1 (en) * | 2002-03-05 | 2005-03-16 | Ferrer Internacional,S.A | PROCEDURE FOR OBTAINING THE 3- (2- (4- (6-FLUORO-BENZO (D) ISOXAZOL-3-IL) PIPERIDIN-1-IL) -ETIL) -2-METHYL-6,7,8,9- TETRAHIDRO-4H-PIRIDO- (1,2-A) PIRIMIDIN-4-ONA. |
| KR20040034996A (en) | 2002-10-18 | 2004-04-29 | 한미약품 주식회사 | Improved method for the preparation of risperidone |
| EP1560814A1 (en) | 2002-11-13 | 2005-08-10 | Synthon B.V. | Process for making risperidone and intermediates therefor |
| RU2310653C1 (en) * | 2006-07-17 | 2007-11-20 | Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУВПО "КубГТУ") | METHOD FOR PREPARING DERIVATIVES OF 2-METHYL-5-(5-METHYL-2-FURYL)-4,10-DIHYDRO-3H-PYRIDAZINO[1,6-b]ISOQUINOLINE-10-ONE (VARIANTS) |
| US8314110B2 (en) * | 2007-04-19 | 2012-11-20 | Youxin Li | Compounds for treating mental disorders, and preparation and uses thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT327199B (en) * | 1971-10-14 | 1976-01-26 | Sumitomo Chemical Co | PROCESS FOR PRODUCING NEW NITROCHINAZOLINONES |
| US4352811A (en) * | 1981-11-12 | 1982-10-05 | Hoechst-Roussel Pharmaceuticals Inc. | 3-(1-Substituted-4-piperidyl)-1,2-benzisoxazoles |
| US4485107A (en) * | 1982-11-01 | 1984-11-27 | Janssen Pharmaceutica N.V. | [[Bis(aryl)methylene]-1-piperidinyl]alkyl-pyrimidinones |
| US4804663A (en) * | 1985-03-27 | 1989-02-14 | Janssen Pharmaceutica N.V. | 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles |
| US4980365A (en) * | 1987-07-13 | 1990-12-25 | Hoechst-Roussel Pharmaceuticals Inc. | N-substituted-5,6-dimethoxy-1,2-benzisoxazole-3-propanamine and related compounds as analgesic and hypotensive agents |
-
1994
- 1994-02-11 ES ES09400252A patent/ES2074966B1/en not_active Expired - Fee Related
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1995
- 1995-02-01 GR GR950100035A patent/GR1002344B/en not_active IP Right Cessation
- 1995-02-07 SK SK156-95A patent/SK281752B6/en not_active IP Right Cessation
- 1995-02-08 CZ CZ1995329A patent/CZ286398B6/en not_active IP Right Cessation
- 1995-02-08 IS IS4259A patent/IS1766B/en unknown
- 1995-02-09 NO NO950501A patent/NO306022B1/en not_active IP Right Cessation
- 1995-02-09 EG EG11595A patent/EG20877A/en active
- 1995-02-09 PT PT101654A patent/PT101654B/en active IP Right Grant
- 1995-02-10 HU HU9500418A patent/HU222110B1/en not_active IP Right Cessation
- 1995-02-10 RU RU95101859/04A patent/RU2123004C1/en not_active IP Right Cessation
- 1995-02-10 FI FI950579A patent/FI110000B/en not_active IP Right Cessation
- 1995-02-10 PL PL95307200A patent/PL181420B1/en not_active IP Right Cessation
- 1995-02-10 AT AT0024995A patent/AT405401B/en not_active IP Right Cessation
- 1995-02-11 KR KR1019950002516A patent/KR100221108B1/en not_active Expired - Fee Related
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|---|---|
| FI950579A0 (en) | 1995-02-10 |
| HUT70169A (en) | 1995-09-28 |
| IS4259A (en) | 1995-08-12 |
| PT101654B (en) | 2002-01-30 |
| KR950032196A (en) | 1995-12-20 |
| CZ32995A3 (en) | 1995-09-13 |
| HU9500418D0 (en) | 1995-03-28 |
| ES2074966B1 (en) | 1996-06-16 |
| FI110000B (en) | 2002-11-15 |
| NO950501L (en) | 1995-08-14 |
| PL307200A1 (en) | 1995-08-21 |
| KR100221108B1 (en) | 1999-09-15 |
| RU2123004C1 (en) | 1998-12-10 |
| IS1766B (en) | 2001-03-15 |
| NO306022B1 (en) | 1999-09-06 |
| FI950579L (en) | 1995-08-12 |
| RU95101859A (en) | 1997-03-20 |
| SK15695A3 (en) | 1995-10-11 |
| ATA24995A (en) | 1998-12-15 |
| HU222110B1 (en) | 2003-04-28 |
| GR1002344B (en) | 1996-05-24 |
| CZ286398B6 (en) | 2000-04-12 |
| EG20877A (en) | 2000-05-31 |
| SK281752B6 (en) | 2001-07-10 |
| ES2074966A1 (en) | 1995-09-16 |
| PL181420B1 (en) | 2001-07-31 |
| AT405401B (en) | 1999-08-25 |
| NO950501D0 (en) | 1995-02-09 |
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