WO2012169474A1 - イミニウム塩を経由する二環性化合物の製造方法 - Google Patents
イミニウム塩を経由する二環性化合物の製造方法 Download PDFInfo
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- WO2012169474A1 WO2012169474A1 PCT/JP2012/064415 JP2012064415W WO2012169474A1 WO 2012169474 A1 WO2012169474 A1 WO 2012169474A1 JP 2012064415 W JP2012064415 W JP 2012064415W WO 2012169474 A1 WO2012169474 A1 WO 2012169474A1
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- Prior art keywords
- compound
- general formula
- alkyl group
- producing
- mixture
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- -1 bicyclic compound Chemical class 0.000 title claims description 20
- 150000007975 iminium salts Chemical class 0.000 title abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 59
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims abstract description 22
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical group CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 14
- 125000001424 substituent group Chemical group 0.000 claims description 14
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 claims description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 8
- BHELZAPQIKSEDF-UHFFFAOYSA-N allyl bromide Chemical compound BrCC=C BHELZAPQIKSEDF-UHFFFAOYSA-N 0.000 claims description 8
- 125000005843 halogen group Chemical group 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 7
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 6
- 150000003512 tertiary amines Chemical class 0.000 claims description 6
- 150000008065 acid anhydrides Chemical class 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 239000003446 ligand Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 30
- 238000006243 chemical reaction Methods 0.000 description 23
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- 239000000243 solution Substances 0.000 description 18
- 239000002904 solvent Substances 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 239000012044 organic layer Substances 0.000 description 11
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 7
- CFXVYUTXMBQOBF-BQYQJAHWSA-N (e)-n,n-bis(2-methylpropyl)but-1-en-1-amine Chemical compound CC\C=C\N(CC(C)C)CC(C)C CFXVYUTXMBQOBF-BQYQJAHWSA-N 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000012230 colorless oil Substances 0.000 description 6
- 239000012299 nitrogen atmosphere Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000010898 silica gel chromatography Methods 0.000 description 4
- HKJUCKFBSKKODW-VOTSOKGWSA-N (2e)-4-ethylhepta-2,6-dienoic acid Chemical compound C=CCC(CC)\C=C\C(O)=O HKJUCKFBSKKODW-VOTSOKGWSA-N 0.000 description 3
- 0 *C(C[C@]1C2)=C[C@]1C2=O Chemical compound *C(C[C@]1C2)=C[C@]1C2=O 0.000 description 3
- FTBQORVNHOIASH-UHFFFAOYSA-N 2-[6-(aminomethyl)-3-ethyl-6-bicyclo[3.2.0]hept-3-enyl]acetic acid Chemical compound C1C(CC)=CC2C(CC(O)=O)(CN)CC21 FTBQORVNHOIASH-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 3
- 125000002619 bicyclic group Chemical group 0.000 description 3
- 239000002198 insoluble material Substances 0.000 description 3
- 208000004296 neuralgia Diseases 0.000 description 3
- 208000021722 neuropathic pain Diseases 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000007106 1,2-cycloaddition reaction Methods 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 2
- FTBQORVNHOIASH-CKYFFXLPSA-N 2-[(1r,5s,6s)-6-(aminomethyl)-3-ethyl-6-bicyclo[3.2.0]hept-3-enyl]acetic acid Chemical compound C1C(CC)=C[C@H]2[C@](CC(O)=O)(CN)C[C@H]21 FTBQORVNHOIASH-CKYFFXLPSA-N 0.000 description 2
- NJBCRXCAPCODGX-UHFFFAOYSA-N 2-methyl-n-(2-methylpropyl)propan-1-amine Chemical compound CC(C)CNCC(C)C NJBCRXCAPCODGX-UHFFFAOYSA-N 0.000 description 2
- QEGONAXSXKFDLY-UHFFFAOYSA-N 3-ethylbicyclo[3.2.0]hept-3-en-6-one Chemical compound C1C(CC)=CC2C(=O)CC21 QEGONAXSXKFDLY-UHFFFAOYSA-N 0.000 description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- UGJMXCAKCUNAIE-UHFFFAOYSA-N Gabapentin Chemical compound OC(=O)CC1(CN)CCCCC1 UGJMXCAKCUNAIE-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 239000012279 sodium borohydride Substances 0.000 description 2
- 229910000033 sodium borohydride Inorganic materials 0.000 description 2
- 239000012312 sodium hydride Substances 0.000 description 2
- 229910000104 sodium hydride Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 102000038650 voltage-gated calcium channel activity Human genes 0.000 description 2
- 108091023044 voltage-gated calcium channel activity Proteins 0.000 description 2
- IWYDHOAUDWTVEP-SSDOTTSWSA-M (R)-mandelate Chemical compound [O-]C(=O)[C@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-SSDOTTSWSA-M 0.000 description 1
- IWYDHOAUDWTVEP-SSDOTTSWSA-N (R)-mandelic acid Chemical compound OC(=O)[C@H](O)C1=CC=CC=C1 IWYDHOAUDWTVEP-SSDOTTSWSA-N 0.000 description 1
- 125000005918 1,2-dimethylbutyl group Chemical group 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-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
- VXIWCCNFMVKMTK-UHFFFAOYSA-M 2-ethylpent-4-enylidene-bis(2-methylpropyl)azanium;bromide Chemical compound [Br-].C=CCC(CC)C=[N+](CC(C)C)CC(C)C VXIWCCNFMVKMTK-UHFFFAOYSA-M 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
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- OSDWBNJEKMUWAV-UHFFFAOYSA-N Allyl chloride Chemical compound ClCC=C OSDWBNJEKMUWAV-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- PQSSQAHRYZBXEX-UHFFFAOYSA-N C(C)C(C(CC(=O)OCC)O)CC=C.C(C)C(C(CC(=O)O)O)CC=C Chemical compound C(C)C(C(CC(=O)OCC)O)CC=C.C(C)C(C(CC(=O)O)O)CC=C PQSSQAHRYZBXEX-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- HFEHLDPGIKPNKL-UHFFFAOYSA-N allyl iodide Chemical compound ICC=C HFEHLDPGIKPNKL-UHFFFAOYSA-N 0.000 description 1
- 238000005937 allylation reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- YHASWHZGWUONAO-UHFFFAOYSA-N butanoyl butanoate Chemical compound CCCC(=O)OC(=O)CCC YHASWHZGWUONAO-UHFFFAOYSA-N 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
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 208000015114 central nervous system disease Diseases 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- KQWWVLVLVYYYDT-UHFFFAOYSA-N ethyl 3-oxohexanoate Chemical compound CCCC(=O)CC(=O)OCC KQWWVLVLVYYYDT-UHFFFAOYSA-N 0.000 description 1
- MVEAAGBEUOMFRX-UHFFFAOYSA-N ethyl acetate;hydrochloride Chemical compound Cl.CCOC(C)=O MVEAAGBEUOMFRX-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229960002870 gabapentin Drugs 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
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 229910052740 iodine Inorganic materials 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
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 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
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000003287 optical effect 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
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- AYXYPKUFHZROOJ-ZETCQYMHSA-N pregabalin Chemical compound CC(C)C[C@H](CN)CC(O)=O AYXYPKUFHZROOJ-ZETCQYMHSA-N 0.000 description 1
- 229960001233 pregabalin Drugs 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- SAZYDWOWLRDDRQ-UHFFFAOYSA-N tert-butyl 2-dimethoxyphosphorylacetate Chemical compound COP(=O)(OC)CC(=O)OC(C)(C)C SAZYDWOWLRDDRQ-UHFFFAOYSA-N 0.000 description 1
- WMOVHXAZOJBABW-UHFFFAOYSA-N tert-butyl acetate Chemical compound CC(=O)OC(C)(C)C WMOVHXAZOJBABW-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/30—Preparation of optical isomers
- C07C227/34—Preparation of optical isomers by separation of optical isomers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/48—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation involving decarboxylation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/41—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrogenolysis or reduction of carboxylic groups or functional derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/62—Quaternary ammonium compounds
- C07C211/63—Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
- C07C227/18—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/22—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement
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- C—CHEMISTRY; METALLURGY
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- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/32—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated and containing rings other than six-membered aromatic rings
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- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/30—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having nitrogen atoms of imino groups quaternised
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- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/52—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition by dehydration and rearrangement involving two hydroxy groups in the same molecule
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- C07C49/427—Saturated compounds containing a keto group being part of a ring polycyclic a keto group being part of a condensed ring system having two rings
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Definitions
- the present invention relates to a bicyclic ⁇ -amino acid derivative or a pharmacologically acceptable salt thereof, particularly a compound having activity as an ⁇ 2 ⁇ ligand and a method for producing an intermediate thereof.
- Non-Patent Document 1 Compounds that exhibit high affinity binding to the ⁇ 2 ⁇ subunit of the voltage-gated calcium channel have been shown to be effective, for example, in the treatment of neuropathic pain (eg, Non-Patent Document 1 and Non-Patent Document 1). Patent Document 2).
- ⁇ 2 ⁇ ligands are known as therapeutic agents for neuropathic pain, and examples of ⁇ 2 ⁇ ligands include gabapentin and pregabalin.
- Alpha 2 [delta] ligands such as these compounds are useful for the treatment of such epilepsy and neuropathic pain (e.g., Patent Document 1).
- Other compounds are disclosed in, for example, Patent Document 2, Patent Document 3, Patent Document 4, and the like.
- Patent Literature 5 and Patent Literature as ⁇ 2 ⁇ ligands and methods for producing the same. 6 is reported.
- An object of the present invention is to provide a method for producing a bicyclic ⁇ -amino acid derivative or a pharmacologically acceptable salt thereof, particularly a compound having activity as an ⁇ 2 ⁇ ligand and an intermediate thereof.
- Patent Document 5 or Patent Document 6 reports a production method as described in Scheme 1, and the inventors of the present application (1) improved the yield of Step1-Step4, and (2) cheaper than To make it possible to manufacture using various raw materials, and (3) to improve the reproducibility by facilitating the stirring at Step 4, to continue the earnest research, as a result to solve the problem, The present invention has been completed. [Wherein each substituent is defined as follows. R 1 : a hydrogen atom or a C1-C6 alkyl group]
- R 1 a hydrogen atom or a C1-C6 alkyl group]
- a compound having the general formula (IV) is produced by reacting a compound having the general formula (III) with an allyl halide, [Wherein each substituent is defined as follows.
- R 1 hydrogen atom or C1-C6 alkyl group
- R 2 C1-C6 alkyl group
- X halogen atom
- a compound having the general formula (V) is produced by reacting a compound having the general formula (IV) with malonic acid in the presence of a base or a base and a catalyst, [Wherein the substituents are defined as follows.
- R 1 a hydrogen atom or a C1-C6 alkyl group]
- a method for producing a compound having the general formula (I) and a compound having the general formula (II) by heating the compound having the general formula (V) in the presence of an acid anhydride and a tertiary amine.
- a bicyclic ⁇ -amino acid derivative having excellent activity as an ⁇ 2 ⁇ ligand, a production intermediate thereof, and a salt thereof can be provided.
- a target compound can be produced using only inexpensive raw materials, and it is also necessary to use a reagent with high ignition risk such as sodium hydride, n-butyllithium, sodium borohydride and the like. Absent.
- C1-C6 alkyl group refers to a linear or branched alkyl group having 1 to 6 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec -Butyl, tert-butyl, pentyl, isopentyl, 2-methylbutyl, neopentyl, 1-ethylpropyl, hexyl, isohexyl, 4-methylpentyl, 3-methylpentyl, 2-methyl Pentyl group, 1-methylpentyl group, 3,3-dimethylbutyl group, 2,2-dimethylbutyl group, 1,1-dimethylbutyl group, 1,2-dimethylbutyl group, 1,3-dimethylbutyl group, 2 , 3-dimethylbutyl group, 2-ethylbutyl group and the like.
- Halogen atom refers to a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- Scheme 2 A compound having the general formula (IV) is produced by reacting a compound having the general formula (III) with an allyl halide. [Wherein each substituent is defined as follows. R 1 : hydrogen atom or C1-C6 alkyl group, R 2 : C1-C6 alkyl group, X: halogen atom]
- the allyl halide used in this reaction is allyl chloride, allyl bromide or allyl iodide, preferably allyl bromide.
- R 1 used in this reaction a methyl group or an ethyl group is preferable.
- R 2 used in this reaction is preferably an n-propyl group, an n-butyl group or an isobutyl group, and particularly preferably an isobutyl group.
- This reaction can be performed at room temperature, but can be performed in a shorter time by heating to 60 ° C. or higher.
- acetonitrile is preferably used.
- Knovenagel type condensation reaction Doebner type reaction, Scheme 3
- the compound having the general formula (V) is produced by reacting the compound having the general formula (IV) under the conditions of the Knovenagel type condensation reaction. [Wherein each substituent is defined as follows.
- R 1 hydrogen atom or C1-C6 alkyl group
- R 2 C1-C6 alkyl group
- X halogen atom
- Preferable as the base used in this reaction is pyridine.
- the reaction can be smoothly renewed by adding piperidine or morpholine as a catalyst. Although this reaction proceeds by heating, it is preferably heating at 70 ° C. or higher.
- the solvent used in this reaction is preferably pyridine, acetonitrile or toluene.
- [2 + 2] Cycloaddition Reaction The compound having the general formula (I) and the general formula (V) are reacted with the compound having the general formula (V) under the conditions of the [2 + 2] cycloaddition reaction.
- a compound having II) is prepared.
- R 1 a hydrogen atom or a C1-C6 alkyl group
- the acid anhydride used in this reaction is preferably acetic anhydride, propionic anhydride, or butyric anhydride, and more preferably acetic anhydride.
- the tertiary amine used in this reaction is preferably triethylamine, tripropylamine, tributylamine, N-methylmorpholine, and more preferably triethylamine.
- the solvent used in this reaction is preferably an aprotic solvent, more preferably N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, more preferably N, N-dimethylacetamide.
- This reaction proceeds by heating, but a suitable reaction temperature is 100 to 120 ° C., and the reaction time in this case is 5 to 10 hours.
- salt in the present invention means that a compound represented by the general formula (VI) forms a salt by reacting with an acid or a base when the structure has an amino group and / or a carboxyl group. So that salt.
- a compound having the general formula (VI) may be left in the air or recrystallized to absorb moisture and have adsorbed water to form a hydrate. Such hydrates are also included in the salts of the present invention.
- the compound having the general formula (VI), or a pharmacologically acceptable salt thereof shows activity as an ⁇ 2 ⁇ ligand and has an affinity for the ⁇ 2 ⁇ subunit of the voltage-gated calcium channel. It is useful as an active ingredient in pharmaceutical compositions used for the treatment and / or prevention of pain, central nervous system disorders, and other disorders.
- the aqueous layer was extracted with 3M aqueous sodium hydroxide solution (200 mL ⁇ 2 times + 100 mL ⁇ 1 time), and adjusted to pH 1 with concentrated hydrochloric acid (100 mL). After extraction with toluene (200 ml ⁇ 2 times), the organic layer was concentrated under reduced pressure. Toluene (200 mL) was added to the residue, and the insoluble material was removed by filtration. The filtrate was concentrated under reduced pressure to obtain 98.1 g of a crude product of the title compound as a colorless oil. From quantitative analysis by HPLC, the yield was 86% from (E) -but-1-enyldiisobutylamine in two steps.
- N-Butyllithium (1.58 M hexane solution, 34.8 mL, 55 mmol) was added dropwise to the reaction solution, and the mixture was further stirred for 10 minutes under ice cooling, then allyl bromide (4.7 mL, 55 mmol) was added, and After stirring for an hour, the mixture was further stirred at room temperature for 4 hours.
- 1N Hydrochloric acid and saturated aqueous ammonium chloride solution were added to the reaction mixture, and the mixture was extracted with n-pentane. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure.
- the aqueous layer was extracted with ethyl acetate, and the organic layers were combined, washed with saturated brine, and dried over anhydrous magnesium sulfate.
- the solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography to obtain the desired product as a pale yellow oily substance (1.32 g, 31%, E / Z mixture).
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Abstract
Description
また、出願人は、これまでにα2δリガンド及びその製造方法として、特許文献5及び特許文献6を報告している。
特許文献5又は特許文献6には、Scheme1に記載のような製造方法が報告されているところ、本出願の発明者らは、(1)Step1-Step4の収率の改善、(2)より安価な原料を使用して製造できるようにすること、(3)Step4での撹拌を容易にして再現性を向上させること、を課題として取り上げて鋭意研究を継続し、その結果として課題を解決し、本発明を完成させた。
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
[1] 一般式(I)を有する化合物及び一般式(II)を有する化合物を製造する方法であり、
[式中、置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
(1)一般式(III)を有する化合物を、ハロゲン化アリルと反応させることにより、一般式(IV)を有する化合物を製造し、
[式中、各置換基は以下のように定義される。
R1:水素原子またはC1-C6アルキル基、R2:C1-C6アルキル基、X:ハロゲン原子]
(2)一般式(IV)を有する化合物を、塩基又は、塩基及び触媒の存在下、マロン酸と反応させることにより、一般式(V)を有する化合物を製造し、
[式中、置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
(3)一般式(V)を有する化合物を酸無水物及び3級アミンの存在下、加熱することにより、一般式(I)を有する化合物及び一般式(II)を有する化合物を製造する方法。
[2] R1が、メチル基又はエチル基である、[1]に記載の方法。
[3] R2が、イソブチル基である、[1]又は[2]に記載の方法。
[4] (1)で用いるハロゲン化アリルがアリルブロミドである、[1]-[3]のいずれか1項に記載の方法。
[5] (2)で用いる塩基がピリジンである、[1]-[4]のいずれか1項に記載の方法。
[6] (2)で用いる触媒がピペリジン又はモルホリンである、[1]-[5]のいずれか1項に記載の方法。
[7] (3)で用いる酸無水物が無水酢酸で、3級アミンがトリエチルアミンである、[1]-[6]のいずれか1項に記載の方法。
[8] 一般式(VI)を有する化合物またはその塩を製造する方法であり、
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
[1]に記載の製造する方法により一般式(I)を有する化合物及び一般式(II)を有する化合物を製造した後、
その一般式(I)を有する化合物及び一般式(II)を有する化合物を用いて、一般式(VI)を有する化合物またはその塩を製造する方法。
[9] 一般式(IV)を有する化合物。
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基、R2:C1-C6アルキル基、X:ハロゲン原子]
本発明によれば、安価な原料のみを使用して目的とする化合物を製造することができ、水素化ナトリウムやn-ブチルリチウムや水素化ホウ素ナトリウム等の発火危険性が高い試薬を用いる必要もない。また、イミニウム塩(IV)を単離することなく、連続的に製造工程を行うことが可能であり、効率良く目的とする化合物を製造することができる。
「ハロゲン原子」とは、フッ素原子、塩素原子、臭素原子又はヨウ素原子をいう。
(1)アリル化反応(Scheme 2)
一般式(III)を有する化合物に対して、ハロゲン化アリルを反応させることにより、一般式(IV)を有する化合物を製造する。
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基、R2:C1-C6アルキル基、X:ハロゲン原子]
本反応に用いるハロゲン化アリルとしては、アリルクロリド、アリルブロミド又はアリルヨージドであるが、好適には、アリルブロミドである。
本反応に用いるR1としては、メチル基又はエチル基が好適である。
本反応に用いるR2としては、n-プロピル基、n-ブチル基又はイソブチル基が好適であり、特に好適には、イソブチル基である。
本反応は、室温でも行うことができるが、60℃以上に加熱することによってより短時間で行うことができる。
本反応の溶媒として、好適には、アセトニトリルが用いられる。
(2)Knovenagel型縮合反応(Doebner型反応、Scheme 3)
一般式(IV)を有する化合物に対して、Knovenagel型縮合反応の条件で反応を行うことにより、一般式(V)を有する化合物を製造する。
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基、R2:C1-C6アルキル基、X:ハロゲン原子]
本反応に用いられる塩基として、好適には、ピリジンであり。触媒としてピペリジン又はモルホリン等を加えることによって反応を円滑に新させることができる。
本反応は、加熱することによって反応が進行するが、好適には、70℃以上の加熱である。
本反応に用いられる溶媒として、好適には、ピリジン、アセトニトリル又はトルエンである。
(3)[2+2]付加環化反応
一般式(V)を有する化合物に対して、[2+2]付加環化反応の条件で反応を行うことにより、一般式(I)を有する化合物及び一般式(II)を有する化合物を製造する。
[式中、各置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
本反応に用いられる酸無水物としては、好適には、無水酢酸、無水プロピオン酸、無水酪酸であり、より好適には、無水酢酸である。
本反応に用いられる3級アミンとしては、好適には、トリエチルアミン、トリプロピルアミン、トリブチルアミン、N-メチルモルホリンであり、より好適には、トリエチルアミンである。
本反応に用いられる溶媒は、好適には、非プロトン性の溶媒であり、より好適には、N,N-ジメチルホルムアミド、N,N-ジメチルアセトアミド、ジメチルスルホキシド、N-メチル-2-ピロリドン、1,3-ジメチル-2-イミダゾリジノンであり、さらに好適には、N,N-ジメチルアセトアミドである。
本反応は、加熱することによって進行するが、好適な反応温度は、100-120℃であり、その場合の反応時間は5-10時間である。
一般式(VI)を有する化合物、または、その薬理学的に許容される塩は、α2δリガンドとして活性を示し、電位依存性カルシウムチャンネルのα2δサブユニットに対して親和性があり、痛み、中枢神経性障害、およびその他の障害の治療および/または予防に使用される医薬組成物の有効成分として有用である。
(1-a-1)(E)-ブタ-1-エニルジイソブチルアミン(脱水還流法)
窒素雰囲気下、室温にてジイソブチルアミン(87mL、0.50mol)のトルエン(100mL)溶液にブタナール(68mL、0.75mol)を20分かけて滴下した。Dean-Stark管を装着後、130℃まで加温、還流し、水を含む留出液を50mLずつ2回抜き取った。反応混合物を室温まで冷却後、減圧下蒸留(0.25mmHg,51~55℃)を行い標記化合物67.67g(収率74%)を無色油状物として得た。
(1-a-2)(E)-ブタ-1-エニルジイソブチルアミン(脱水剤添加法)
窒素雰囲気下、ジイソブチルアミン(17.5mL、0.10mol)に炭酸カリウム(4.8g、35mmol)を加えた後、-7℃まで冷却し、ブタナール(9.0mL、0.10mol)を10分かけて滴下した。反応混合物を室温まで徐々に昇温し、19時間撹拌した。ろ過により不溶物を除去後、ろ液を減圧下濃縮し、標記化合物13.6g(収率74%)を無色油状物として得た。
1H NMR (400 MHz, CDCl3) d 0.82-0.94 (m, 15H), 1.83-1.97 (m, 4H), 2.70 (d, 4H, J=7.0 Hz), 4.02 (dt, 1H, J=7.0, 14.0 Hz), 5.92 (dd, 1H, J=1.0, 14.0 Hz).
(1-b)N,N-ジイソブチル-2-エチルペンタ-4-エン-1-イミニウムブロミド
窒素雰囲気下、室温にて(E)-ブタ-1-エニルジイソブチルアミン(1.83g、10mmol)とアセトニトリル(5.5mL)の混合物にアリルブロミド(1.30mL、15mmol)を加えた後、外温60℃にて15時間撹拌した。室温まで冷却後、減圧濃縮し、標記化合物(2.79g、92%)を赤紫色固体として得た。
1H NMR (400 MHz, CDCl3) δ0.91-0.98 (m, 15H), 1.60-1.76 (m, 2H), 2.10-2.19 (m, 2H), 2.50-2.35 (m, 2H), 3.00-3.09 (m, 1H), 3.60-3.82 (m, 4H), 5.07-5.11 (m, 1H), 5.16-5.22 (m, 1H), 5.73-5.84 (m, 1H), 8.65 (d, 1H, J=10.5 Hz).
(1-c-1)(2E)-4-エチルヘプタ-2,6-ジエン酸
窒素雰囲気下、室温にて(E)-ブタ-1-エニルジイソブチルアミン(10.0g、54.5mmol)とアセトニトリル(30mL)の混合物にアリルブロミド(7.1mL、81.8mmol)を加えた後、外温70℃にて17時間撹拌した。反応混合物を室温まで冷却後、減圧濃縮し、イミニウム塩を赤紫色固体として得た。得られたイミニウム塩をピリジン(100mL)に溶解後、マロン酸(11.3g、109.0mmol)およびピペリジン(0.81mL、8.2mmol)を順次加えた。反応混合物を外温100℃にて17時間撹拌後、室温まで冷却した。ピリジンを留去後、残渣に酢酸エチルと1M塩酸を加え分液した。有機層を飽和食塩水で洗浄後、無水硫酸ナトリウムで乾燥した。溶媒留去後、残渣をシリカゲルクロマトグラフィー(n-ヘキサン:酢酸エチル=5:1~1:1)で精製し、標記化合物(6.96g、収率83%)を無色油状物として得た。
1H NMR (400 MHz, CDCl3) δ0.88 (t, 3H, J=7.4 Hz), 1.32-1.42 (m, 1H), 1.50-1.60 (m, 1H), 2.12-2.25 (m, 3H), 5.00-5.06 (m, 2H), 5.65-5.76 (m, 1H), 5.80 (d, 1H, J=15.8 Hz), 6.90 (dd, 1H, J=8.4, 15.8 Hz).
(1-c-2)(2E)-4-エチルヘプタ-2,6-ジエン酸(ワンポット法)
窒素雰囲気下、室温にて(E)-ブタ-1-エニルジイソブチルアミン122g(0.665mol)とアセトニトリル(370mL)の混合物にアリルブロミド(75mL、0.865mol)を10分かけて滴下後、20分間撹拌した。反応混合物を加熱し、外温70℃にて17時間撹拌後、Dean-Stark管を取り付けた。外温115℃とし、留出液約120mLを抜き取った後、アセトニトリル(360mL)を加えた。再度留出液約120mLを抜き取った後、室温まで冷却した。得られた反応混合物にピリジン(108mL、1.33mol)、ピペリジン(10mL、0.1mol)およびマロン酸(104g、0.998mol)を順次加えた後、外温100℃にて17時間撹拌した。室温まで冷却後、約430mLの溶媒を減圧下で留去した。6M塩酸(200mL)を加えpH 1とした後、トルエン(250mL×2回、120mL×1回)で抽出した。3M水酸化ナトリウム水溶液(200mL×2回+100mL×1回)で水層へ抽出後、濃塩酸(100mL)でpH 1とした。トルエン(200ml×2回)で抽出後、有機層を減圧濃縮した。残渣にトルエン(200mL)を加えた後、不溶物を濾過で除去した。ろ液を減圧下濃縮し、標記化合物98.1gの粗生成物を無色油状物として得た。HPLCによる定量分析より、収率は、(E)-ブタ-1-エニルジイソブチルアミンから2工程で86%であった。
(1-d)3-エチルビシクロ[3.2.0]ヘプタ-3-エン-6オン
窒素雰囲気下、 (2E)-4-エチルヘプタ-2,6-ジエン酸(34.0g、純度90.7%)をN,N-ジメチルアセトアミド(100mL)に溶解し、無水酢酸(37.8mL、0.40mol)、トリエチルアミン(28mL、0.20mol)を加えた。反応混合物を加温し、105~115℃で6.5時間攪拌した。反応混合物を室温まで冷却し、水(200mL)を加え、n-ヘキサンで4回抽出した(150mLで2回、50mLで2回)。抽出した有機層を全て合わせた後、飽和重曹水(50mL)、水(50mL)で順次洗浄した。得られた有機層を減圧下濃縮し、残渣を減圧蒸留(93-102℃、約25mmHg)することにより、標記化合物(22.06g、無色油状物)を得た。(収率81%)
1H NMR (400 MHz, CDCl3) δ 1.07 (t, 3H, J=7.4 Hz), 2.14 (q, 2H, J=7.4 Hz), 2.28-2.34 (m, 1H), 2.75-2.86 (m, 3H), 3.16-3.25 (m, 1H), 4.16-4.22 (m, 1H), 5.20-5.24 (m, 1H).
(1-a)4-エチル-3-ヒドロキシヘプタ-6-エン酸エチル
3-オキソヘキサン酸エチル(7.91g、50mmol)のテトラヒドロフラン溶液(50mL)に水素化ナトリウム(>63%油性、2.09g、55mmol)を氷冷下加え、そのまま10分攪拌した。反応液にn-ブチルリチウム(1.58Mヘキサン溶液、34.8mL、55mmol)を滴下し、さらに氷冷下で10分攪拌した後、臭化アリル(4.7mL、55mmol)を加え、そのまま1時間攪拌した後、室温でさらに4時間攪拌した。反応液に1N塩酸、飽和塩化アンモニウム水溶液を加えた後、n-ペンタンで抽出した。飽和食塩水で有機層を洗浄、無水硫酸マグネシウムで乾燥し、溶媒を減圧留去した。得られた残渣をエタノール(80mL)に溶解させ、氷冷下で水素化ホウ素ナトリウム(1.51g、40mmol)を加え、そのまま2時間攪拌した。1N塩酸(50mL)を加えて30分攪拌した後、飽和食塩水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、溶媒を減圧留去した。残渣をシリカゲルカラムクロマトグラフィーにより精製し、目的物を淡黄色油状物質として得た(3.64g、37%、ジアステレオマーの混合物)。
1H-NMR(400MHz、CDCl3):δ ppm: 0.91 (3H, t, J=7.5Hz), 1.28 (3H, t, J=7.2Hz), 1.43-1.55 (2H, m), 1.98-2.28 (2H, m), 2.45-2.48 (2H, m), 2.88-2.93 (1H, m), 4.07-4.10 (1H, m), 4.10-4.20 (2H, m), 5.01-5.09 (2H, m), 5.75-5.86 (1H, m).
4-エチル-3-ヒドロキシヘプタ-6-エン酸エチル(3.64g、18.2mmol)を2N水酸化カリウム メタノール溶液(120mL)に溶解させ、室温で一晩攪拌した。反応液の溶媒を減圧留去した後、1N水酸化ナトリウム水溶液(200mL)を加え、ジエチルエーテルで抽出した。水層を氷冷下にて濃塩酸を加えて酸性にした後、再びジエチルエーテルで抽出した。有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した後、溶媒を減圧留去し、目的物を淡黄色油状物質として得た(3.14g、<100%、ジアステレオマーの混合物)。
1H-NMR(400MHz、CDCl3):δ ppm: 0.91-0.96 (3H, m), 1.39-1.52 (3H, m), 2.01-2.28 (2H, m), 2.52-2.55 (2H, m), 4.05-4.15 (2H, m), 5.03-5.10 (2H, m), 5.74-5.86 (1H, m).
4-エチル-3-ヒドロキシへプタ-6-エン酸(3.13g、18.2mmol)を無水酢酸(15mL)に溶解し、酢酸カリウム(4.27g、43.6mmol)を加え室温で1時間40分攪拌した。反応液を加熱還流し3時間半攪拌して、反応液中に「3-エチルビシクロ[3.2.0]ヘプタ-6-エン-6-オン」を生成させた後、反応液に氷水、トルエンを加えそのまま室温で一晩攪拌した。飽和食塩水(50mL)、トルエン(20mL)を加え分液後、有機層を1N水酸化ナトリウム水溶液、飽和食塩水で順次洗浄し無水硫酸マグネシウムで乾燥して、ろ過した。このろ液を、ジメトキシホスホリル酢酸tert-ブチル(4.48g、20mmol)のテトラヒドロフラン溶液(50mL)に氷冷下で水素化ナトリウム(>65%油性、761.9mg、20mmol)を加えて調製した反応液に加え、さらに1時間攪拌した。反応液に飽和塩化アンモニウム水溶液、飽和食塩水を加え分液した。水層を酢酸エチルで抽出し、有機層を併せて飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥した。溶媒を減圧留去し、残渣をシリカゲルカラムクロマトグラフィーにより精製し、目的物を淡黄色油状物質として得た(1.32g、31%、E/Z体混合物)。
1H-NMR(400MHz、CDCl3):δ ppm:
Major isomer: 1.06 (3H, t, J=7.4Hz), 1.45 (9H, s), 2.07-2.22 (3H, m), 2.59-2.70 (2H, m), 2.87-2.96 (1H, m), 3.30 (1H, ddt, J=8.6, 18.4, 2.7Hz), 3.86-3.88 (1H, m), 5.22-5.23 (1H, m), 5.45-5.47 (1H, m).
Minor isomer: 1.08 (3H, t, J=7.3Hz), 1.49 (9H, s), 2.07-2.21 (3H, m), 2.43-2.47 (1H, m), 2.59-2.70 (1H, m), 2.75-2.85 (1H, m), 2.87-2.96 (1H, m), 4.28-4.31 (1H, m), 5.35-5.38 (1H, m), 5.45-5.47 (1H, m).
[3-エチルビシクロ[3.2.0]へプタ-3-エン-6-イリデン酢酸tert-ブチル(1.32g、5.63mmol)をニトロメタン(7mL)に溶解し、1,8-ジアザビシクロ[5.4.0]ウンデカ-7-エン(1.2mL、7.3mmol)を加え、50-60℃で7時間加熱攪拌した。放冷後、飽和リン酸二水素カリウム水溶液を加え、酢酸エチルで抽出後、無水硫酸マグネシウムで乾燥、溶媒を減圧留去した。残渣をシリカゲルカラムクロマトグラフィーで精製し、目的物を無色油状物質として得た(1.39g、84%)。
1H-NMR(400MHz、CDCl3):δ ppm: 1.09 (3H, t, J=7.4Hz), 1.46 (9H, s), 1.52 (1H, dd, J=7.6, 13.2Hz), 2.06(1H,d, 16.6Hz), 2.14 (2H, q, J=7.4Hz), 2.30 (1H, ddd, J=2.4, 7.6, 13.2Hz), 2.47 (2H, s), 2.49 (1H, dd, J=7.6,16.6Hz), 2.86 (1H, quint, J=7.6Hz), 3.21-3.22 (1H, m), 4.75 (1H, d, J=11.7Hz), 4.84 (1H, d, J=11.7Hz), 5.27 (1H, s).
[3-エチル-6-(ニトロメチル)ビシクロ[3.2.0]へプタ-3-エン-6-イル]酢酸tert-ブチル(1.09g、4.71mmol)をエタノール(10mL)および水(5mL)に溶解させ、鉄粉末(1.32g、23.5mmol)、塩化アンモニウム(249.6mg、4.71mmol)を加え、加熱還流下2時間攪拌した。放冷後、飽和食塩水、飽和炭酸水素ナトリウム水溶液、および酢酸エチルで希釈し、セライトろ過により不溶物を除去した。ろ液を有機層と水層に分離し、有機層を飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。残渣に4N塩酸 酢酸エチル溶液(20mL)を加え室温で1時間攪拌した後、溶媒を減圧留去した。ジクロロメタンに懸濁させトリエチルアミンを滴下し、生じた粉末をろ取、ジクロロメタンで洗浄後、乾燥し、目的物を白色粉末として得た(425.1mg、43%)。
1H-NMR(400MHz、CD3OD):δ ppm: 1.10 (3H, t, J=7.4Hz), 1.48 (1H, dd, J=7.5, 12.5Hz), 2.03-2.08 (2H, m), 2.14 (2H, q, J=7.4Hz), 2.46 (1H, d, J=16.2Hz), 2.46-2.53 (1H, m), 2.51 (1H, d, J=16.2Hz), 2.85 (1H, quint, J=7.5Hz), 3.09-3.10 (1H, m), 3.14 (1H, d, J=13.0Hz), 3.18 (1H, d, J=13.0Hz), 5.38 (1H, dd, J=1.7, 3.7Hz).
(参考例2)
[(1R,5S,6S)-6-アミノメチル-3-エチルビシクロ[3.2.0]へプタ-3-エン-6-イル]酢酸tert-ブチル D-マンデル酸塩
[6-アミノメチル-3-エチルビシクロ[3.2.0]へプタ-3-エン-6-イル]酢酸tert-ブチル(85:15ジアステレオマー混合物) 627.0 g(Net :543.6 g, 2.05 mol)にアセトニトリル 4.7 L(8.6 v/w)を加え40度にて攪拌した。反応液にD-マンデル酸116.3 g(0.76 mmol, 0.37eq.)を加え40度にて1時間攪拌した後、3度まで徐冷した。3度にて1時間攪拌した後、結晶をろ取した。その後、40度条件下減圧乾燥を行い、白色粉末として [(1R,5S,6S)-6-アミノメチル-3-エチルビシクロ[3.2.0]へプタ-3-エン-6-イル]酢酸tert-ブチル D-マンデル酸塩251.2 g(収率:29.4% , 97.6%ee, 99.6%de)を得た。
1H-NMR(400MHz,DMSO-d6) δ ppm: 1.04 (3H, t, J=7.6 Hz), 1.28-1.35 (1H, m), 1.39 (9H, s), 1.96-2.11 (4H, m), 2.28 (1H, d , J=15.6 Hz), 2.33 (1H, d, J=15.6 Hz), 2.36-2.40 (1H, m), 2.72 (1H, quint, J=7.6 Hz), 3.00 (1H, d, J=13.2 Hz), 3.03 (1H, d, J=13.2 Hz), 3.31(1H, br s), 4.54 (1H, s), 5.21 -5.23 (1H, m), 7.13 -7.25 (3H, m), 7.35 -7.37 (2H, m).
[α]20 D-104.4°(C=0.108, MeOH).
Anal. calcd for C24H35NO5: C, 69.04; H, 8.45; N, 3.35; Found C, 69.15; H, 8.46; N, 3.46.
Claims (9)
- 一般式(I)を有する化合物及び一般式(II)を有する化合物を製造する方法であり、
[式中、置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
(1)一般式(III)を有する化合物を、ハロゲン化アリルと反応させることにより、一般式(IV)を有する化合物を製造し、
[式中、各置換基は以下のように定義される。
R1:水素原子またはC1-C6アルキル基、R2:C1-C6アルキル基、X:ハロゲン原子]
(2)一般式(IV)を有する化合物を、塩基又は、塩基及び触媒の存在下、マロン酸と反応させることにより、一般式(V)を有する化合物を製造し、
[式中、置換基は以下のように定義される。R1:水素原子またはC1-C6アルキル基]
(3)一般式(V)を有する化合物を酸無水物及び3級アミンの存在下、加熱することにより、一般式(I)を有する化合物及び一般式(II)を有する化合物を製造する方法。 - R1が、メチル基又はエチル基である、請求項1に記載の方法。
- R2が、イソブチル基である、請求項1又は2に記載の方法。
- (1)で用いるハロゲン化アリルがアリルブロミドである、請求項1-3のいずれか1項に記載の方法。
- (2)で用いる塩基がピリジンである、請求項1-4のいずれか1項に記載の方法。
- (2)で用いる触媒がピペリジン又はモルホリンである、請求項1-5のいずれか1項に記載の方法。
- (3)で用いる酸無水物が無水酢酸で、3級アミンがトリエチルアミンである、請求項1-6のいずれか1項に記載の方法。
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WO2013089189A1 (ja) * | 2011-12-16 | 2013-06-20 | 第一三共株式会社 | ヒドロキシスルホン酸を経由する二環性化合物の光学分割方法 |
WO2013154066A1 (ja) * | 2012-04-10 | 2013-10-17 | 第一三共株式会社 | 酵素を用いる二環性化合物の光学分割方法 |
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Cited By (8)
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WO2013089188A1 (ja) * | 2011-12-15 | 2013-06-20 | 第一三共株式会社 | 不斉触媒を用いる二環性化合物の光学分割方法 |
US20140296569A1 (en) * | 2011-12-15 | 2014-10-02 | Daiichi Sankyo Company, Limited | Optical Resolution Method for Bicyclic Compound Using Asymmetric Catalyst |
JPWO2013089188A1 (ja) * | 2011-12-15 | 2015-04-27 | 第一三共株式会社 | 不斉触媒を用いる二環性化合物の光学分割方法 |
US9035103B2 (en) | 2011-12-15 | 2015-05-19 | Daiichi Sankyo Company, Limited | Optical resolution methods for bicyclic compounds using asymmetric catalysts |
WO2013089189A1 (ja) * | 2011-12-16 | 2013-06-20 | 第一三共株式会社 | ヒドロキシスルホン酸を経由する二環性化合物の光学分割方法 |
WO2013154066A1 (ja) * | 2012-04-10 | 2013-10-17 | 第一三共株式会社 | 酵素を用いる二環性化合物の光学分割方法 |
US9394235B2 (en) | 2012-04-10 | 2016-07-19 | Daiichi Sankyo Company, Limited | Optical resolution methods for bicyclic compounds using enzymes |
WO2017183539A1 (ja) * | 2016-04-18 | 2017-10-26 | 第一三共株式会社 | メルドラム酸を用いる二環性化合物の製造方法 |
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HUE037046T2 (hu) | 2018-08-28 |
BR112013031360A2 (pt) | 2017-10-17 |
EP2719676B1 (en) | 2017-12-13 |
JPWO2012169474A1 (ja) | 2015-02-23 |
CN103582622B (zh) | 2015-06-10 |
US9206104B2 (en) | 2015-12-08 |
ES2659162T3 (es) | 2018-03-14 |
BR112013031360B1 (pt) | 2022-01-25 |
CA2838650C (en) | 2016-07-12 |
IL229800A (en) | 2017-06-29 |
EP2719676A1 (en) | 2014-04-16 |
CA2838650A1 (en) | 2012-12-13 |
EP2719676A4 (en) | 2015-03-11 |
JP5922118B2 (ja) | 2016-05-24 |
KR101816336B1 (ko) | 2018-01-08 |
CN103582622A (zh) | 2014-02-12 |
US20140094624A1 (en) | 2014-04-03 |
KR20140041523A (ko) | 2014-04-04 |
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