JP6891047B2 - 光学活性トリフルオロメチル基含有アミノ酸誘導体の製造方法 - Google Patents
光学活性トリフルオロメチル基含有アミノ酸誘導体の製造方法 Download PDFInfo
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- JP6891047B2 JP6891047B2 JP2017107902A JP2017107902A JP6891047B2 JP 6891047 B2 JP6891047 B2 JP 6891047B2 JP 2017107902 A JP2017107902 A JP 2017107902A JP 2017107902 A JP2017107902 A JP 2017107902A JP 6891047 B2 JP6891047 B2 JP 6891047B2
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- sulfinamide
- methyl
- trifluoro
- ethyl
- propan
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 title claims description 111
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 150000003862 amino acid derivatives Chemical class 0.000 title 1
- -1 2-phenylethenyl group Chemical group 0.000 claims description 181
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 114
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 84
- 125000001010 sulfinic acid amide group Chemical group 0.000 claims description 83
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 76
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 72
- 229910052757 nitrogen Inorganic materials 0.000 claims description 34
- 150000001413 amino acids Chemical class 0.000 claims description 32
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 claims description 26
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 10
- 125000006165 cyclic alkyl group Chemical group 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 10
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 10
- 125000005843 halogen group Chemical group 0.000 claims description 10
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 10
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 10
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 10
- 239000007983 Tris buffer Substances 0.000 claims description 9
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 claims description 3
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims 1
- LFILDSDQMSCNBV-UHFFFAOYSA-N propane-2-sulfinamide Chemical compound CC(C)S(N)=O LFILDSDQMSCNBV-UHFFFAOYSA-N 0.000 description 532
- LFILDSDQMSCNBV-LURJTMIESA-N propane-2-sulfinamide Chemical compound CC(C)[S@@](N)=O LFILDSDQMSCNBV-LURJTMIESA-N 0.000 description 321
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 44
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 39
- 238000005481 NMR spectroscopy Methods 0.000 description 38
- 238000001819 mass spectrum Methods 0.000 description 37
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 36
- 238000005160 1H NMR spectroscopy Methods 0.000 description 34
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 29
- XWBDWHCCBGMXKG-UHFFFAOYSA-N ethanamine;hydron;chloride Chemical compound Cl.CCN XWBDWHCCBGMXKG-UHFFFAOYSA-N 0.000 description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 19
- 239000007787 solid Substances 0.000 description 19
- 239000012043 crude product Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 229960004592 isopropanol Drugs 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000001514 detection method Methods 0.000 description 9
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 9
- 239000003480 eluent Substances 0.000 description 9
- 238000004128 high performance liquid chromatography Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 9
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 8
- 125000001624 naphthyl group Chemical group 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 150000003840 hydrochlorides Chemical class 0.000 description 6
- POGQSBRIGCQNEG-UHFFFAOYSA-N rufinamide Chemical compound N1=NC(C(=O)N)=CN1CC1=C(F)C=CC=C1F POGQSBRIGCQNEG-UHFFFAOYSA-N 0.000 description 6
- 229960003014 rufinamide Drugs 0.000 description 6
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- DTBDAFLSBDGPEA-UHFFFAOYSA-N 3-Methylquinoline Natural products C1=CC=CC2=CC(C)=CN=C21 DTBDAFLSBDGPEA-UHFFFAOYSA-N 0.000 description 4
- 125000006275 3-bromophenyl group Chemical group [H]C1=C([H])C(Br)=C([H])C(*)=C1[H] 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 238000006692 trifluoromethylation reaction Methods 0.000 description 4
- RZJUXIWKZNYCAS-FJXQXJEOSA-N (1s)-1-(4-chlorophenyl)-2,2,2-trifluoroethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@@H](N)C1=CC=C(Cl)C=C1 RZJUXIWKZNYCAS-FJXQXJEOSA-N 0.000 description 3
- KBJQMJLPMZXUCR-FJXQXJEOSA-N (1s)-2,2,2-trifluoro-1-[4-(trifluoromethyl)phenyl]ethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@@H](N)C1=CC=C(C(F)(F)F)C=C1 KBJQMJLPMZXUCR-FJXQXJEOSA-N 0.000 description 3
- ASNHGEVAWNWCRQ-UHFFFAOYSA-N 4-(hydroxymethyl)oxolane-2,3,4-triol Chemical compound OCC1(O)COC(O)C1O ASNHGEVAWNWCRQ-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-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
- PEGHITPVRNZWSI-UHFFFAOYSA-N [[bis(trimethylsilyl)amino]-dimethylsilyl]methane Chemical compound C[Si](C)(C)N([Si](C)(C)C)[Si](C)(C)C PEGHITPVRNZWSI-UHFFFAOYSA-N 0.000 description 3
- 150000001728 carbonyl compounds Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IUBQJLUDMLPAGT-UHFFFAOYSA-N potassium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([K])[Si](C)(C)C IUBQJLUDMLPAGT-UHFFFAOYSA-N 0.000 description 3
- 238000010898 silica gel chromatography Methods 0.000 description 3
- CESUXLKAADQNTB-UHFFFAOYSA-N tert-butanesulfinamide Chemical class CC(C)(C)S(N)=O CESUXLKAADQNTB-UHFFFAOYSA-N 0.000 description 3
- DNCUAEBPHZKGHO-DDWIOCJRSA-N (1R)-2,2,2-trifluoro-1-(4-methoxyphenyl)ethanamine hydrochloride Chemical compound Cl.COc1ccc(cc1)[C@@H](N)C(F)(F)F DNCUAEBPHZKGHO-DDWIOCJRSA-N 0.000 description 2
- QQDBPKMSDZTOHZ-MERQFXBCSA-N (1S)-2,2,2-trifluoro-1-naphthalen-2-ylethanamine hydrochloride Chemical compound Cl.C1=CC=CC2=CC([C@H](N)C(F)(F)F)=CC=C21 QQDBPKMSDZTOHZ-MERQFXBCSA-N 0.000 description 2
- RZJUXIWKZNYCAS-OGFXRTJISA-N (1r)-1-(4-chlorophenyl)-2,2,2-trifluoroethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@H](N)C1=CC=C(Cl)C=C1 RZJUXIWKZNYCAS-OGFXRTJISA-N 0.000 description 2
- KBJQMJLPMZXUCR-OGFXRTJISA-N (1r)-2,2,2-trifluoro-1-[4-(trifluoromethyl)phenyl]ethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@H](N)C1=CC=C(C(F)(F)F)C=C1 KBJQMJLPMZXUCR-OGFXRTJISA-N 0.000 description 2
- LCQGOISHUDYBOS-FJXQXJEOSA-N (1s)-2,2,2-trifluoro-1-phenylethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@@H](N)C1=CC=CC=C1 LCQGOISHUDYBOS-FJXQXJEOSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 2
- 125000004215 2,4-difluorophenyl group Chemical group [H]C1=C([H])C(*)=C(F)C([H])=C1F 0.000 description 2
- 125000003762 3,4-dimethoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 description 2
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 2
- LQVXSNNAFNGRAH-QHCPKHFHSA-N BMS-754807 Chemical compound C([C@@]1(C)C(=O)NC=2C=NC(F)=CC=2)CCN1C(=NN1C=CC=C11)N=C1NC(=NN1)C=C1C1CC1 LQVXSNNAFNGRAH-QHCPKHFHSA-N 0.000 description 2
- GQQSNPDNZZHMJH-FJXQXJEOSA-N Cl.FC([C@@H](N)C1=C(C(=CC=C1)F)F)(F)F Chemical compound Cl.FC([C@@H](N)C1=C(C(=CC=C1)F)F)(F)F GQQSNPDNZZHMJH-FJXQXJEOSA-N 0.000 description 2
- GQQSNPDNZZHMJH-OGFXRTJISA-N Cl.FC([C@H](N)C1=C(C(=CC=C1)F)F)(F)F Chemical compound Cl.FC([C@H](N)C1=C(C(=CC=C1)F)F)(F)F GQQSNPDNZZHMJH-OGFXRTJISA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- ZUSWDTWYONAOPH-UHFFFAOYSA-N [2-(trifluoromethyl)phenyl]hydrazine;hydrochloride Chemical group [Cl-].[NH3+]NC1=CC=CC=C1C(F)(F)F ZUSWDTWYONAOPH-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 125000000649 benzylidene group Chemical group [H]C(=[*])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000005805 dimethoxy phenyl group Chemical group 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000006303 iodophenyl group Chemical group 0.000 description 2
- 230000000269 nucleophilic effect Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 125000003944 tolyl group Chemical group 0.000 description 2
- MWKJTNBSKNUMFN-UHFFFAOYSA-N trifluoromethyltrimethylsilane Chemical compound C[Si](C)(C)C(F)(F)F MWKJTNBSKNUMFN-UHFFFAOYSA-N 0.000 description 2
- AKWSNJCOFZXRPH-OGFXRTJISA-N (1R)-1-(2-chlorophenyl)-2,2,2-trifluoroethanamine hydrochloride Chemical compound Cl.FC([C@H](N)C1=C(C=CC=C1)Cl)(F)F AKWSNJCOFZXRPH-OGFXRTJISA-N 0.000 description 1
- ZCSPVYOTNBRTOR-OGFXRTJISA-N (1R)-1-(3,5-difluorophenyl)-2,2,2-trifluoroethanamine hydrochloride Chemical compound Cl.FC([C@H](N)C1=CC(=CC(=C1)F)F)(F)F ZCSPVYOTNBRTOR-OGFXRTJISA-N 0.000 description 1
- IWPCTLVNAZQVOX-DDWIOCJRSA-N (1R)-2,2,2-trifluoro-1-(2-methylphenyl)ethanamine hydrochloride Chemical compound Cl.Cc1ccccc1[C@@H](N)C(F)(F)F IWPCTLVNAZQVOX-DDWIOCJRSA-N 0.000 description 1
- XFJJZYCPEXYDHF-OGFXRTJISA-N (1R)-2,2,2-trifluoro-1-[3-(trifluoromethyl)phenyl]ethanamine hydrochloride Chemical compound Cl.FC(F)(F)[C@H](N)C1=CC=CC(C(F)(F)F)=C1 XFJJZYCPEXYDHF-OGFXRTJISA-N 0.000 description 1
- AKWSNJCOFZXRPH-FJXQXJEOSA-N (1S)-1-(2-chlorophenyl)-2,2,2-trifluoroethanamine hydrochloride Chemical compound Cl.FC([C@@H](N)C1=C(C=CC=C1)Cl)(F)F AKWSNJCOFZXRPH-FJXQXJEOSA-N 0.000 description 1
- ZCSPVYOTNBRTOR-FJXQXJEOSA-N (1S)-1-(3,5-difluorophenyl)-2,2,2-trifluoroethanamine hydrochloride Chemical compound Cl.N[C@@H](c1cc(F)cc(F)c1)C(F)(F)F ZCSPVYOTNBRTOR-FJXQXJEOSA-N 0.000 description 1
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- IWPCTLVNAZQVOX-QRPNPIFTSA-N (1S)-2,2,2-trifluoro-1-(2-methylphenyl)ethanamine hydrochloride Chemical compound Cl.Cc1ccccc1[C@H](N)C(F)(F)F IWPCTLVNAZQVOX-QRPNPIFTSA-N 0.000 description 1
- JVVRSKITRVJXQJ-ZETCQYMHSA-N (1S)-2,2,2-trifluoro-1-(2-nitrophenyl)ethanamine Chemical compound FC(F)(F)[C@@H](N)C1=CC=CC=C1[N+]([O-])=O JVVRSKITRVJXQJ-ZETCQYMHSA-N 0.000 description 1
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- DRGOYEFQAGQGHF-OGFXRTJISA-N (1r)-1-(3-bromophenyl)-2,2,2-trifluoroethanamine;hydrochloride Chemical compound Cl.FC(F)(F)[C@H](N)C1=CC=CC(Br)=C1 DRGOYEFQAGQGHF-OGFXRTJISA-N 0.000 description 1
- OFKUROIPPDLIJP-SSDOTTSWSA-N (1r)-2,2,2-trifluoro-1-(2-fluorophenyl)ethanamine Chemical compound FC(F)(F)[C@H](N)C1=CC=CC=C1F OFKUROIPPDLIJP-SSDOTTSWSA-N 0.000 description 1
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- DNCUAEBPHZKGHO-QRPNPIFTSA-N (1s)-2,2,2-trifluoro-1-(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.COC1=CC=C([C@H](N)C(F)(F)F)C=C1 DNCUAEBPHZKGHO-QRPNPIFTSA-N 0.000 description 1
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- SWDHBAMNSWXENT-SCSAIBSYSA-N (2r)-1,1,1-trifluoro-3,3-dimethylbutan-2-amine Chemical compound CC(C)(C)[C@@H](N)C(F)(F)F SWDHBAMNSWXENT-SCSAIBSYSA-N 0.000 description 1
- MXGSFTNYUNYRLZ-WCCKRBBISA-N (2s)-1,1,1-trifluoro-3,3-dimethylbutan-2-amine;hydrochloride Chemical compound Cl.CC(C)(C)[C@H](N)C(F)(F)F MXGSFTNYUNYRLZ-WCCKRBBISA-N 0.000 description 1
- DGGKCLUWNDUVNQ-QMMMGPOBSA-N 2-[(1s)-1-amino-2,2,2-trifluoroethyl]benzonitrile Chemical compound FC(F)(F)[C@@H](N)C1=CC=CC=C1C#N DGGKCLUWNDUVNQ-QMMMGPOBSA-N 0.000 description 1
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Landscapes
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Description
また、トリフルオロメタンを原料としトリフルオロメチルアニオンを発生させ、カルボニル化合物類に求核的トリフルオロメチル化を行い、トリフルオロメチル基含有アルコール類を製造する方法としては、有機強塩基としてカリウム N,N,N,N,N,N−ヘキサメチルジシラジドを用いる方法(例えば特許文献1参照)及び有機強塩基として1−tert−ブチル−4,4,4−トリス(ジメチルアミノ)−2,2−ビス[トリス(ジメチルアミノ)ホスホラニリデンアミノ]−2λ5,4λ5−カテナジ(以下、P4-tBuと略す)を用いる方法(例えば特許文献2参照)等が知られている。
従来の非特許文献1及び2に記載の方法は、各種反応に用いることが可能であるが、用いるトリフルオロメチルトリメチルシランは比較的高価で、工業的にはより安価なトリフルオロメチルアニオン源が望まれている。
さらに、非特許文献3では、トリフルオロメタンを原料とし、トリフルオロメチルアニオンを不斉導入する例は知られていない。
で表わされる光学活性スルフィナミド誘導体、又は下記一般式(3)
で表わされる光学活性スルフィナミド誘導体を、強塩基存在下、トリフルオロメタンと反応させることを特徴とする、下記一般式(4)
で表わされる光学活性トリフルオロメチル基含有スルフィナミド誘導体の製造方法に係る。
で表わされる光学活性トリフルオロメチル基含有アミノ酸・塩酸塩の製造方法を提供するものである。
本発明に適用可能な一般式(1)で表わされるスルフィナミド誘導体としては、具体的には例えば、Rがtert−ブチル基、ナフチル基又は2−フェニルエテニル基のものとしては、(S,E)−2−メチル−N−(2,2−ジメチルプロピリデン)プロパン−2−スルフィナミド、(S,E)−2−メチル−N−((1−ナフタレン)メチリデン)プロパン−2−スルフィナミド、(S,E)−2−メチル−N−((2−ナフタレン)メチリデン)プロパン−2−スルフィナミド、(S,E)−2−メチル−N−((3−フェニルプロピリデン−2−エン−1−イル)プロパン−2−スルフィナミド等が挙げられる。
本発明の光学活性トリフルオロメチル基含有スルフィナミド誘導体の製造後の後処理としては、特に制限されず周知の方法で実施可能であり、例えば、飽和の塩化アンモニウム水溶液を添加、酢酸エチル等の溶剤で抽出、抽出液を硫酸ナトリウム上で乾燥、ろ過、濃縮の後、さらに、シリカゲルカラムクロマトグラフィー等で精製し、一般式(4)、一般式(5)、一般式(6)又は一般式(7)で表わされる光学活性トリフルオロメチル基含有スルフィナミド誘導体を得ることができる。
本発明の一般式(8)で表わされる光学活性光学活性トリフルオロメチル基含有アミノ酸・塩酸塩としては、具体的には例えば、Rがtert−ブチル基、ナフチル基又は2−フェニルエテニル基のものとしては、(S)−1−(トリフルオロメチル)−2,2−ジメチルプロパン−1−アミン・塩酸塩、(S)−2,2,2−トリフルオロ−1−(ナフタレン−1−イル)エタン−1−アミン・塩酸塩、(S)−2,2,2−トリフルオロ−1−(ナフタレン−2−イル)エタン−1−アミン・塩酸塩、(S,E)−1−(トリフルオロメチル)−3−フェニル−2−プロパン−1−アミン・塩酸塩が挙げられる。
本発明の一般式(8)又は一般式(9)で表わされる光学活性トリフルオロメチル基含有アミノ酸・塩酸塩の製造において適用可能な溶剤としては、反応に不活性なものであれば、あらゆるものが適用可能であるが、具体的には例えば、メタノール、エタノール、iso−プロパノール等のアルコール系溶剤が挙げられ、反応に具する一般式(4)乃至一般式(7)で表わされる光学活性トリフルオロメチル基含有スルフィナミド誘導体に対して、2重量倍量〜50重量倍量使用する。
本発明の一般式(8)又は一般式(9)で表わされる光学活性トリフルオロメチル基含有アミノ酸・塩酸塩の製造後の後処理としては、例えば、反応混合物にジエチルエーテルを添加し晶析、ろ過、ジエチルエーテル及びヘキサンで洗浄、減圧乾燥することにより目的物の光学活性トリフルオロメチル基含有アミノ酸・塩酸塩を得る。
13C−NMR:ブルカー社製アバンス500(Burker Avance 500)。1H−NMR(300及び500MHz)、19F−NMR(282MHz)及び13C−NMR(125MHz):ヴァリアン社製300(Varian300)及びブルカー社製アバンス500(Burker Avance500)。マススペクトル(MS):島津製GCMS−QP5050A(EI−MS、SHIMAZU CMS-QP5050A)及び島津製LCMS−2020(ESI−MS、SHIMAZU LCMS-2020)。
比旋光度:堀場製作所製SEPA−300。
(1)Luca,B.;Eugenio,I.;Salvatore,P.;Alfredo,R.Chem.Commun.2012,48,1428。
(2)Surya Prakash,G.K.;Mihirbaran,M.;Olah,G.A.Angew.Chem.Int.Ed.2001,40,589。
(3)Liu,G.;Cogan,D.A.; Ellman,J.A.J.Am.Chem.Soc.1997,119,9913。
1H−NMR(300MHz,CDCl3)δ7.35(d,J=8.6Hz,2H),6.93(d,J=8.8Hz,2H),4.81(qd,J=7.2,3.4Hz,1H),3.79−3.85(4H,OCH3&NH),1.23(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.76(d,J=7.9Hz,3F)。MS(ESI,m/z)310[M+H]+。
実施例1と同じ反応装置を用い、トルエン(1mL)に替えてジエチルエーテル(1mL)を用いた以外、実施例1と同じ反応操作を行い、粗製物を得た。得られた粗製物を、ベンゾトリフルオリドを内部標準物質として用いた19F−NMRでの定量で収率71%、ジアステレオ選択性は<1:20比で(S)体が主生成物であった。
実施例1と同じ反応装置を用い、トルエン(1mL)に替えてテトラヒドロフラン/トルエン混合溶液(1/1、vol/vol、1mL)を用い、KHMDSの使用量を2.0モル量から2.5モル量に変更した以外、実施例1と同じ反応操作を行い、粗製物を得た。得られた粗製物を、ベンゾトリフルオリドを内部標準物質として用いた19F−NMRでの定量で収率61%、ジアステレオ選択性は1:5比で(S)体が主生成物であった。
実施例1と同じ反応装置を用い、実施例1で使用した(S,E)−2−メチル−N−((4−メトキシフェニル)メチリデン)プロパン−2−スルフィナミド(1a)に替えて表1及び表2中に示したイミン誘導体を用いた以外は実施例1と同じ操作を行い、目的物のトリフルオロメチル基含有化合物を得た。結果を表1及び表2中に示した。
2)粗製物での、19F−NMRによるジアステレオ選択性比。
3)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−フェニルエチル)プロパン−2−スルフィナミド(2b):
油状物。
1H−NMR(300MHz,CDCl3)δ7.38−7.46(m,5H),4.87(qd,J=7.1,3.7Hz,1H),3.87(s,1H),1.23(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.40(d,J=7.0 Hz,3F)。
MS(ESI,m/z)280[M+H]+。
4)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−クロロフェニル)エチル)プロパン−2−スルフィナミド(2c):
油状物。
1H−NMR(300MHz,CDCl3)δ7.37−7.41(m,4H),4.86(qd,J=7.0,3.5Hz,1H),3.91(s,1H),1.24(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.47(d,J=6.9Hz,3F)。
5)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−ニトロフェニル)エチル)プロパン−2−スルフィナミド(2d):
赤橙色固体。
ジアステレオ選択性が1:2の混合物。
1H−NMR(300MHz,CDCl3)δ8.22−8.33(m,3H),4.15(s,1H),7.63−7.73(m,3H),4.85−5.1(m,1.5H),4.00(d,J=7.5Hz,0.5H),1.23(m,13.5H)。
19F−NMR(282MHz,CDCl3)δ−73.60(d,J=7.2Hz,3F,minor),−73.89(d,J=6.8Hz,3F,major)。
MS(ESI,m/z)325[M+H]+。
6)(S)−2−メチル−N−((S)−1,1,1−トリフルオロ−3,3−ジメチルブタン−2−イル)プロパン−2−スルフィナミド(2e):
白色結晶。
1H−NMR(300MHz,CDCl3)δ3.34−3.45(m,2H,CH&NH),1.27(s,9H),1.05(d,J=1.1Hz,9H)。
19F−NMR(282MHz,CDCl3)δ−66.81(d,J=7.2Hz,3F)。
MS(ESI,m/z)260[M+H]+。
7)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−(トリフルオロメチル)フェニル)エチル)プロパン−2−スルフィナミド(2f):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.56(d,J=8.5Hz,2H),7.31(d,J=8.4Hz,2H),4.84(qd,J=9.0,4.5Hz,1H),3.93(d,J=2.5Hz,1H),1.24(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.64(d,J=6.9Hz,3F),−63.36(s,3F)。
MS(ESI,m/z)348 [M+H]+。
8)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−ブロモフェニル)エチル)プロパン−2−スルフィナミド(2g):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.65−7.73(m,2H),7.53−7.62(m,2H),4.9−5.0(m,1H),3.95(s,1H),1.24(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.94(d,J=6.9Hz,3F)。
MS(ESI,m/z)359[M+H]+。
9)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−(ジメチルアミノ)フェニル)エチル)プロパン−2−スルフィナミド(2h):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.26(d,J=8.7Hz,2H),6.70(d,J=8.9Hz,2H),4.76(qd,J=7.2,3.3Hz,1H),3.80(s,1H),2.98(s,6H),1.23(s,9H)。
19F−NMR(282MHz,CDCl3)δ−75.29(d,J=6.8Hz,3F)。
MS(ESI,m/z)323[M+H]+。
10)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(ナフタレン−2−イル)エチル)プロパン−2−スルフィナミド(2i):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.85−7.93(m,4H),7.51−7.56(m,3H),5.04(qd,J=7.1,3.4Hz,1H),3.94(d,J=2.2Hz,1H),1.24(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.55(d,J=7.1Hz,3F)。
MS(ESI,m/z)330[M+H]+。
11)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(3,4−ジメトキシフェニル)エチル)プロパン−2−スルフィナミド(2j):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.00(dd,J=8.3,1.9Hz,1H),6.92(d,J=1.2Hz,1H),6.89(d,J=8.3Hz,1H),4.81(qd,J=7.1,2.9Hz,1H),3.88(s,3H),3.91(s,3H),3.81(s,1H),1.25(s,9H)。
19F−NMR(282MHz,CDCl3)δ−75.03(d,J=6.8Hz,3F)。
MS(ESI,m/z)340[M+H]+。
12)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(3−(トリフルオロメチル)フェニル)エチル)プロパン−2−スルフィナミド(2k):
白色固体。
H−NMR(500MHz,CDCl3)δ7.67−7.74(m,2H),7.64(d,J=7.8Hz,1H),7.56(t,J=7.7Hz,1H),4.97(qd,J=7.0,3.2Hz,1H),3.92(s,1H),1.25(s,9H)。
19F−NMR(282MHz,CDCl3)δ−63.30(s,3F),−74.80(d,J=6.9Hz,3F)。
MS(ESI,m/z)348[M+H]+。
13)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(3−メトキシフェニル)エチル)プロパン−2−スルフィナミド(2l):
無色透明液体。
1H−NMR(300MHz,CDCl3)δ7.28−7.36(m,1H),6.92−7.04(m,3H),4.84(qd,J=7.01,3.56Hz,1H),3.75−3.86(m,4H,OCH3&NH),1.24(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.78(d,J=6.9Hz,3F)。
MS(ESI,m/z)310 [M+H]+。
14)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(2−メトキシフェニル)エチル)プロパン−2−スルフィナミド(2m):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.32−7.41(m,2H),6.91−7.03(m,2H),5.31−5.43(m,1H),4.14(s,1H),3.87(s,3H),1.19(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.40(d,J =7.3Hz,3F)。
MS(ESI,m/z)310[M+H]+。
15)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(4−メチルフェニル)エチル)プロパン−2−スルフィナミド(2n):
無色透明液体。
1H−NMR(300MHz,CDCl3)δ7.31(d,J=7.9Hz,2H),7.22(d,J=8.0Hz,2H),4.83(qd,J=7.1,3.6Hz,1H),3.87(s,1H),2.38(s,3H),1.23(s,9H)。
19F−NMR(282MHz,CDCl3)δ−75.04(d,J=7.0Hz,3F)。
MS(ESI,m/z)294[M+H]+。
16)(S)−2−メチル−N−((S)−2,2,2−トリフルオロ−1−(2−メチルフェニル)エチル)プロパン−2−スルフィナミド(2o):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.45(d,J=7.2Hz,1H),7.19−7.35(m,3H),5.19(qd,J=7.1,3.7Hz,1H),3.88(s,1H),2.44(s,3H),1.23(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.39(d,J=6.5Hz,3F)。
MS(ESI,m/z)294[M+H]+。
17)(S)−2−メチル−N−((S,E)−1,1,1−トリフルオロ−4−フェニルブット−3−エン−2−イル)プロパン−2−スルフィナミド(2p):
黄色液体。
1H−NMR(300MHz,CDCl3)δ7.28−7.50(m,5H),6.87(d,J=15.9Hz,1H),6.04(dd,J=15.9,8.3Hz,1H),4.40−4.54(m,1H),3.74(d,J=3.7Hz,1H),1.26(s,9H)。
19F−NMR(282MHz,CDCl3)δ−75.94(d,J=6.7Hz,3F)。
MS(ESI,m/z)306[M+H]+。
2)粗製物での、19F−NMRによるジアステレオ選択性比。
3)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(4−メトキシフェニル)エチル)プロパン−2−スルフィナミド(3a):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.35(d,J=8.6Hz,2H),6.92(d,J=4.8Hz,2H),4.84−4.72(m,1H),3.81(s,3H),3.53(d,J=5.7 Hz,1H),1.25(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.67(d,J=7.4Hz,3F)。
MS(ESI,m/z)310[M+H]+。
4)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−フェニルエチル)プロパン−2−スルフィナミド(3b):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.35−7.48(m,5H),4.77−4.90(m,J=14.1,7.0Hz,1H),3.62(d,J=5.4 Hz,1H),1.26(s,9H)。
19F−NMR(282MHz, CDCl3)δ−74.52(d,J=7.3Hz,3F)。
MS(ESI,m/z)280[M+H]+。
5)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(4−クロロフェニル)エチル)プロパン−2−スルフィナミド(3c):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.29−7.51(m,4H),4.74−4.91(m,1H),3.59(d,J=6.5Hz,1H),1.26(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.54(d,J=7.2Hz,3F)。
MS(ESI,m/z)315[M+H]+。
6)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(4−(トリフルオロメチル)フェニル)エチル)プロパン−2−スルフィナミド(3d):
白色固体。
1H−NMR(300MHz,CDCl3)δ7.70(d,J=8.0Hz,2H),7.59(d,J=8.0Hz,2H),4.83−4.98(m,J=14.9,7.7Hz,1H),3.67(d,J=6.8Hz,1H),1.27(s,9H)。
19F−NMR(282MHz,CDCl3)δ−63.49(s,3F),−74.30(d,J=7.1Hz,3F)。
MS(ESI,m/z)348[M+H]+。
7)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(4−ブロモフェニル)エチル)プロパン−2−スルフィナミド(3e):
白色固体。
1H−NMR(500MHz,CDCl3)δ1.25(s,9H),3.60(d,J=6.4Hz,1H),4.74−4.85(m,1H),7.32(d,J=8.4Hz,2H),7.55(d,J=8.5Hz,2H)。
19F−NMR(282MHz,CDCl3)δ−74.51(d,J=7.4Hz,3F)。
MS(ESI,m/z)359[M+H]+。
8)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(4−(ジメチルアミノ)フェニル)エチル)プロパン−2−スルフィナミド(3f):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.27(d,J=8.7Hz,2H),6.70(d,J=8.8Hz,2H),4.69−4.77(m,1H),3.51(t,J=9.0Hz,1H),2.96(s,6H),1.25(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.68(d,J=7.0Hz,3F)。
MS(ESI,m/z)323[M+H]+。
9)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(ナフタレン−2−イル)エチル)プロパン−2−スルフィナミド(3g):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.83−7.93(m,4H),7.49−7.56(m,3H),4.95−5.05(m,1H),3.72(d,J=6.0Hz,1H),1.28(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.12(d,J=7.4Hz,3F)。
MS(ESI,m/z)330[M+H]+。
10)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(3,4−ジメトキシフェニル)エチル)プロパン−2−スルフィナミド(3h):
白色固体。
1H−NMR(500MHz,CDCl3)δ7.00(dd,J=8.3,1.7Hz,1H),6.93(d,J=1.9Hz,1H),4.74−4.81(m,1H),3.90(s,3H),3.89(s,3H),3.56(d,J=5.8Hz,1H),1.26(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.39(d,J=6.7Hz,3F)。
MS(ESI,m/z)340[M+H]+。
11)(S)−2−メチル−N−((R)−1,1,1−トリフルオロ−3,3−ジメチルブタン−2−イル)プロパン−2−スルフィナミド(3i):
白色固体。
1H−NMR(300MHz,CDCl3)δ3.58−3.24(m,2H),1.25(s,9H),1.12(s,9H)。
19F NMR(282 MHz,CDCl3)δ−68.89(d,J=6.7Hz,3F)。
MS(ESI,m/z)260 [M+H]+。
12)(S)−2−メチル−N−((R)−2,2,2−トリフルオロ−1−(2−メトキシフェニル)エチル)プロパン−2−スルフィナミド(3j):
白色固体。
1H−NMR(300 MHz,CDCl3)δ7.41−7.22(m,2H),7.03−6.89(m,2H),5.32−5.15(m,1H),4.24(d,J=7.8Hz,1H),3.89(s,3H),1.25(s,9H)。
19F−NMR(282MHz,CDCl3)δ−74.60(d,J=7.9Hz,1H)。
MS(ESI,m/z)310[M+H]+。
実施例19と同じ反応装置を用い、トルエン(1mL)に替えてジグリム(1mL)を用い、温度を−78℃から25℃に変更した以外、実施例19と同じ操作を行い、粗製物を得た。得られた粗製物を、ベンゾトリフルオリドを内部標準物質として用いた19F−NMRでの定量で収率86%、ジアステレオ選択性は12:1比で(R)体が主生成物であった。
実施例29と同じ反応装置を用い、P4−tBuの使用量を1.1モル量から0.2モル量に替え、トリス(トリメチルシリル)アミン(2.0モル量)を用いた以外、実施例29と同じ操作を行い、粗製物を得た。得られた粗製物を、ベンゾトリフルオリドを内部標準物質として用いた19F−NMRでの定量で収率74%、ジアステレオ選択性は5:1比で(R)体が主生成物であった。
比旋光度:[α]D 25=+15.4(c=0.23,MeOH)
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR (300MHz,CD3OD)δ7.52(d,J=8.7Hz,2H),7.07(d,J=8.7Hz,2H),5.31(q,J =7.5Hz,1H),4.94(s,3H),3.84(s,3H)。
MS(ESI,m/z)206[M+H]+。
実施例31と同じ反応装置を用い、実施例4、5、8、11及び19〜22と同様の反応で得られた生成物を実施例31と同じ条件下、反応を行った。結果を表4に示した。
2)単離収率。
3)(S)−2,2,2−トリフルオロ−1−フェニルエタン−1−アミン・塩酸塩(4b)
比旋光度:[α]D 25 =+18.8(c=1,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−3を用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=70/30/0.1)、流量:1.0ml/min、検出波長:λ=254nm)。
1H NMR(300 MHz,CD3OD)δ7.53−7.59(s,5H),5.29−5.45(m,1H),4.90(s,3H)。
MS(ESI,m/z)176 M+H]+。
4)(S)−2,2,2−トリフルオロ−1−(4−クロロフェニル)エタン−1−アミン・塩酸塩(4c):
比旋光度:[α]D 25=+18.6(c=0.72, MeOH)。
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR(300MHz,CD3OD)δ7.50−7.66(m,4H),5.35−5.51(m,J=14.8,5.5Hz,1H),4.90(s,3H)。
MS(ESI,m/z)211[M+H]+。
5)(S)−2,2,2−トリフルオロ−1−(4−(トリフルオロメチル)フェニル)エタン−1−アミン・塩酸塩(4f):
比旋光度:[α]D 25=+13.2(c=0.68,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR(300MHz,CD3OD)δ7.89(d,J=8.4Hz,2H),7.81(d,J=8.2Hz,2H),5.59(q,J=7.4Hz,1H),4.94(s,3H)。
MS(ESI,m/z)244[M+H]+。
6)(S)−2,2,2−トリフルオロ−1−(ナフタレン−2−イル)エタン−1−アミン・塩酸塩(4i):
比旋光度:[α]D 25=+19.0(c=1.0,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=95/5/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR(300MHz,CD3OD)δ 7.87−8.21(m,4H),7.52−7.73(m,3H),5.58(q,J=7.5Hz,1H),4.93(s,3H)。
MS(ESI,m/z)226 [M+H]+。
7)(R)−2,2,2−トリフルオロ−1−(4−メトキシフェニル)エタン−1−アミン・塩酸塩(4´a):
比旋光度:[α]D 25=−18.5(c=0.59,MeOH)
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR (300MHz,CD3OD)δ7.52(d,J=8.7Hz,2H),7.07(d,J=8.7Hz,2H),5.31(q,J =7.5Hz,1H),4.94(s,3H),3.84(s,3H)。
MS(ESI,m/z)206[M+H]+。
8)(R)−2,2,2−トリフルオロ−1−フェニルエタン−1−アミン・塩酸塩(4´b):
比旋光度:[α]D 25 =−16.1(c=0.40,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−3を用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=70/30/0.1)、流量:1.0ml/min、検出波長:λ=254nm)。
1H NMR(300 MHz,CD3OD)δ7.53−7.59(s,5H),5.29−5.45(m,1H),4.90(s,3H)。
MS(ESI,m/z)176 M+H]+。
9)(R)−2,2,2−トリフルオロ−1−(4−クロロフェニル)エタン−1−アミン・塩酸塩(4´c):
比旋光度:[α]D 25=−17.8(c=0.64,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR(300MHz,CD3OD)δ7.50−7.66(m,4H),5.35−5.51(m,J=14.8,5.5Hz,1H),4.90(s,3H)。
MS(ESI,m/z)211[M+H]+。
10)(R)−2,2,2−トリフルオロ−1−(4−(トリフルオロメチル)フェニル)エタン−1−アミン・塩酸塩(4´f):
比旋光度:[α]D 25=−12.4(c=0.67,MeOH)。
光学純度:>99%ee。CHIRALCEL OD−Hを用いたHPLCで測定:溶離液(ヘキサン/2−プロパノール/ジエチルアミン=98/2/0.1)、流量:0.5ml/min、検出波長:λ=254nm)。
1H−NMR(300MHz,CD3OD)δ7.89(d,J=8.4Hz,2H),7.81(d,J=8.2Hz,2H),5.59(q,J=7.4Hz,1H),4.94(s,3H)。
MS(ESI,m/z)244[M+H]+。
Claims (3)
- 下記一般式(1)
で表わされる光学活性スルフィナミド誘導体、又は下記一般式(3)
で表わされる光学活性スルフィナミド誘導体を、強塩基存在下、トリフルオロメタンと反応させることを特徴とする、下記一般式(4)
で表わされる光学活性トリフルオロメチル基含有スルフィナミド誘導体の製造方法。 - 強塩基が、カリウム N,N,N,N,N,N−ヘキサメチルジシラジド、1−tert−ブチル−4,4,4−トリス(ジメチルアミノ)−2,2−ビス[トリス(ジメチルアミノ)ホスホラニリデンアミノ]−2λ5,4λ5−カテナジであることを特徴とする請求項1に記載の、光学活性トリフルオロメチル基含有スルフィンイミド誘導体の製造方法。
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