JP5128281B2 - ラコサミドの改良された合成スキーム - Google Patents
ラコサミドの改良された合成スキーム Download PDFInfo
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- JP5128281B2 JP5128281B2 JP2007533955A JP2007533955A JP5128281B2 JP 5128281 B2 JP5128281 B2 JP 5128281B2 JP 2007533955 A JP2007533955 A JP 2007533955A JP 2007533955 A JP2007533955 A JP 2007533955A JP 5128281 B2 JP5128281 B2 JP 5128281B2
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- JP
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- Prior art keywords
- compound
- formula
- benzyl
- methoxypropionamide
- amino
- Prior art date
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- VPPJLAIAVCUEMN-GFCCVEGCSA-N lacosamide Chemical compound COC[C@@H](NC(C)=O)C(=O)NCC1=CC=CC=C1 VPPJLAIAVCUEMN-GFCCVEGCSA-N 0.000 title claims abstract description 39
- 229960002623 lacosamide Drugs 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 53
- 150000001875 compounds Chemical class 0.000 claims abstract description 52
- 238000007069 methylation reaction Methods 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims abstract description 13
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 27
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- -1 alkyl chloroformate Chemical compound 0.000 claims description 19
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 18
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 14
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical class C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 14
- 239000012022 methylating agents Substances 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000003444 phase transfer catalyst Substances 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- WPLANNRKFDHEKD-SNVBAGLBSA-N Descarbonyl-lacosamide Chemical group COC[C@@H](N)C(=O)NCC1=CC=CC=C1 WPLANNRKFDHEKD-SNVBAGLBSA-N 0.000 claims description 11
- 239000012071 phase Substances 0.000 claims description 11
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 claims description 10
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical group COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 150000002900 organolithium compounds Chemical class 0.000 claims description 9
- 238000006640 acetylation reaction Methods 0.000 claims description 8
- 230000011987 methylation Effects 0.000 claims description 8
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical group CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 7
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 7
- 239000011541 reaction mixture Substances 0.000 claims description 7
- FHOAKXBXYSJBGX-RXMQYKEDSA-N (2r)-3-hydroxy-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid Chemical compound CC(C)(C)OC(=O)N[C@H](CO)C(O)=O FHOAKXBXYSJBGX-RXMQYKEDSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- MTCFGRXMJLQNBG-UWTATZPHSA-N D-Serine Chemical compound OC[C@@H](N)C(O)=O MTCFGRXMJLQNBG-UWTATZPHSA-N 0.000 claims description 6
- 229930195711 D-Serine Natural products 0.000 claims description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000004820 halides Chemical class 0.000 claims description 6
- 238000005580 one pot reaction Methods 0.000 claims description 6
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000008346 aqueous phase Substances 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims description 5
- 125000006239 protecting group Chemical group 0.000 claims description 5
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000012074 organic phase Substances 0.000 claims description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 4
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 4
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 4
- 238000006276 transfer reaction Methods 0.000 claims description 4
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 3
- 150000004714 phosphonium salts Chemical class 0.000 claims description 3
- DYHSDKLCOJIUFX-UHFFFAOYSA-N tert-butoxycarbonyl anhydride Chemical compound CC(C)(C)OC(=O)OC(=O)OC(C)(C)C DYHSDKLCOJIUFX-UHFFFAOYSA-N 0.000 claims description 3
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical group [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 3
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- 150000001718 carbodiimides Chemical class 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- MBAKFIZHTUAVJN-UHFFFAOYSA-I hexafluoroantimony(1-);hydron Chemical compound F.F[Sb](F)(F)(F)F MBAKFIZHTUAVJN-UHFFFAOYSA-I 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 150000002642 lithium compounds Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000008194 pharmaceutical composition Substances 0.000 claims description 2
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims description 2
- 125000004674 methylcarbonyl group Chemical group CC(=O)* 0.000 claims 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims 2
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 claims 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium on carbon Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 235000010755 mineral Nutrition 0.000 claims 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 claims 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 claims 1
- 229940080818 propionamide Drugs 0.000 claims 1
- 239000000243 solution Substances 0.000 description 17
- FIWILGQIZHDAQG-UHFFFAOYSA-N NC1=C(C(=O)NCC2=CC=C(C=C2)OCC(F)(F)F)C=C(C(=N1)N)N1N=C(N=C1)C1(CC1)C(F)(F)F Chemical compound NC1=C(C(=O)NCC2=CC=C(C=C2)OCC(F)(F)F)C=C(C(=N1)N)N1N=C(N=C1)C1(CC1)C(F)(F)F FIWILGQIZHDAQG-UHFFFAOYSA-N 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000000203 mixture Substances 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 125000005842 heteroatom Chemical group 0.000 description 9
- 230000006340 racemization Effects 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 9
- 150000002902 organometallic compounds Chemical class 0.000 description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 238000003408 phase transfer catalysis Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000002585 base Substances 0.000 description 6
- JPYQFYIEOUVJDU-UHFFFAOYSA-N beclamide Chemical compound ClCCC(=O)NCC1=CC=CC=C1 JPYQFYIEOUVJDU-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000004128 high performance liquid chromatography Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000000543 intermediate Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 150000008550 L-serines Chemical class 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 150000004702 methyl esters Chemical class 0.000 description 4
- 125000001424 substituent group Chemical group 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 150000008569 D-serines Chemical class 0.000 description 3
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 230000001035 methylating effect Effects 0.000 description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 description 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 2
- NAAMIKBWSCMFTC-UHFFFAOYSA-N 2-amino-3-methoxypropanamide Chemical compound COCC(N)C(N)=O NAAMIKBWSCMFTC-UHFFFAOYSA-N 0.000 description 2
- YOETUEMZNOLGDB-UHFFFAOYSA-N 2-methylpropyl carbonochloridate Chemical compound CC(C)COC(Cl)=O YOETUEMZNOLGDB-UHFFFAOYSA-N 0.000 description 2
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 description 2
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010533 azeotropic distillation Methods 0.000 description 2
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 description 2
- 125000002619 bicyclic group Chemical group 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010511 deprotection reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000001072 heteroaryl group Chemical group 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- SHFJWMWCIHQNCP-UHFFFAOYSA-M hydron;tetrabutylazanium;sulfate Chemical compound OS([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC SHFJWMWCIHQNCP-UHFFFAOYSA-M 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- VDZOOKBUILJEDG-UHFFFAOYSA-M tetrabutylammonium hydroxide Chemical compound [OH-].CCCC[N+](CCCC)(CCCC)CCCC VDZOOKBUILJEDG-UHFFFAOYSA-M 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- QAQSNXHKHKONNS-UHFFFAOYSA-N 1-ethyl-2-hydroxy-4-methyl-6-oxopyridine-3-carboxamide Chemical compound CCN1C(O)=C(C(N)=O)C(C)=CC1=O QAQSNXHKHKONNS-UHFFFAOYSA-N 0.000 description 1
- QKFFSWPNFCXGIQ-UHFFFAOYSA-M 4-methylbenzenesulfonate;tetraethylazanium Chemical compound CC[N+](CC)(CC)CC.CC1=CC=C(S([O-])(=O)=O)C=C1 QKFFSWPNFCXGIQ-UHFFFAOYSA-M 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-UHFFFAOYSA-N 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000272184 Falconiformes Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 125000003047 N-acetyl group Chemical group 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- SMVOPGBLQOTIMN-UHFFFAOYSA-L [Br-].C[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC.[I-].C(C)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound [Br-].C[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC.[I-].C(C)[P+](C1=CC=CC=C1)(C1=CC=CC=C1)C1=CC=CC=C1 SMVOPGBLQOTIMN-UHFFFAOYSA-L 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000001773 anti-convulsant effect Effects 0.000 description 1
- 239000001961 anticonvulsive agent Substances 0.000 description 1
- 229960003965 antiepileptics Drugs 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- VJGNLOIQCWLBJR-UHFFFAOYSA-M benzyl(tributyl)azanium;chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CC1=CC=CC=C1 VJGNLOIQCWLBJR-UHFFFAOYSA-M 0.000 description 1
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 description 1
- USFRYJRPHFMVBZ-UHFFFAOYSA-M benzyl(triphenyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)CC1=CC=CC=C1 USFRYJRPHFMVBZ-UHFFFAOYSA-M 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
- ZNFYPPCUDSCDPR-UHFFFAOYSA-M butyl(triethyl)azanium;bromide Chemical compound [Br-].CCCC[N+](CC)(CC)CC ZNFYPPCUDSCDPR-UHFFFAOYSA-M 0.000 description 1
- IKWKJIWDLVYZIY-UHFFFAOYSA-M butyl(triphenyl)phosphanium;bromide Chemical compound [Br-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CCCC)C1=CC=CC=C1 IKWKJIWDLVYZIY-UHFFFAOYSA-M 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical class NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- JHYNXXDQQHTCHJ-UHFFFAOYSA-M ethyl(triphenyl)phosphanium;bromide Chemical compound [Br-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(CC)C1=CC=CC=C1 JHYNXXDQQHTCHJ-UHFFFAOYSA-M 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 1
- CETVQRFGPOGIQJ-UHFFFAOYSA-N lithium;hexane Chemical compound [Li+].CCCCC[CH2-] CETVQRFGPOGIQJ-UHFFFAOYSA-N 0.000 description 1
- 125000004492 methyl ester group Chemical group 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LSEFCHWGJNHZNT-UHFFFAOYSA-M methyl(triphenyl)phosphanium;bromide Chemical compound [Br-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C)C1=CC=CC=C1 LSEFCHWGJNHZNT-UHFFFAOYSA-M 0.000 description 1
- JNMIXMFEVJHFNY-UHFFFAOYSA-M methyl(triphenyl)phosphanium;iodide Chemical compound [I-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C)C1=CC=CC=C1 JNMIXMFEVJHFNY-UHFFFAOYSA-M 0.000 description 1
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 150000002780 morpholines Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002891 organic anions Chemical class 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 125000001979 organolithium group Chemical group 0.000 description 1
- 150000002901 organomagnesium compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 1
- 125000005440 p-toluyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C(*)=O)C([H])([H])[H] 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- VFWRGKJLLYDFBY-UHFFFAOYSA-N silver;hydrate Chemical compound O.[Ag].[Ag] VFWRGKJLLYDFBY-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical class CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- DPKBAXPHAYBPRL-UHFFFAOYSA-M tetrabutylazanium;iodide Chemical compound [I-].CCCC[N+](CCCC)(CCCC)CCCC DPKBAXPHAYBPRL-UHFFFAOYSA-M 0.000 description 1
- KBLZDCFTQSIIOH-UHFFFAOYSA-M tetrabutylazanium;perchlorate Chemical compound [O-]Cl(=O)(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC KBLZDCFTQSIIOH-UHFFFAOYSA-M 0.000 description 1
- RSHBFZCIFFBTEW-UHFFFAOYSA-M tetrabutylazanium;thiocyanate Chemical compound [S-]C#N.CCCC[N+](CCCC)(CCCC)CCCC RSHBFZCIFFBTEW-UHFFFAOYSA-M 0.000 description 1
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 description 1
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- UQFSVBXCNGCBBW-UHFFFAOYSA-M tetraethylammonium iodide Chemical compound [I-].CC[N+](CC)(CC)CC UQFSVBXCNGCBBW-UHFFFAOYSA-M 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- RXMRGBVLCSYIBO-UHFFFAOYSA-M tetramethylazanium;iodide Chemical compound [I-].C[N+](C)(C)C RXMRGBVLCSYIBO-UHFFFAOYSA-M 0.000 description 1
- QBVXKDJEZKEASM-UHFFFAOYSA-M tetraoctylammonium bromide Chemical compound [Br-].CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC QBVXKDJEZKEASM-UHFFFAOYSA-M 0.000 description 1
- BRKFQVAOMSWFDU-UHFFFAOYSA-M tetraphenylphosphanium;bromide Chemical compound [Br-].C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 BRKFQVAOMSWFDU-UHFFFAOYSA-M 0.000 description 1
- BGQMOFGZRJUORO-UHFFFAOYSA-M tetrapropylammonium bromide Chemical compound [Br-].CCC[N+](CCC)(CCC)CCC BGQMOFGZRJUORO-UHFFFAOYSA-M 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- IGVWFPZXBUTUCG-UHFFFAOYSA-M tetrapropylazanium;trifluoromethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)F.CCC[N+](CCC)(CCC)CCC IGVWFPZXBUTUCG-UHFFFAOYSA-M 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- IPILPUZVTYHGIL-UHFFFAOYSA-M tributyl(methyl)azanium;chloride Chemical compound [Cl-].CCCC[N+](C)(CCCC)CCCC IPILPUZVTYHGIL-UHFFFAOYSA-M 0.000 description 1
- MQAYPFVXSPHGJM-UHFFFAOYSA-M trimethyl(phenyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)C1=CC=CC=C1 MQAYPFVXSPHGJM-UHFFFAOYSA-M 0.000 description 1
- LZOHWIXYBMRNAP-UHFFFAOYSA-M triphenyl(trityl)phosphanium;chloride Chemical compound [Cl-].C1=CC=CC=C1C([P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 LZOHWIXYBMRNAP-UHFFFAOYSA-M 0.000 description 1
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Description
式IIの化合物
を生成することを含む(R)-2-アセトアミド-N-ベンジル-3-メトキシプロピオンアミドを生成するための改良された方法に関し、
O-メチル化を1段反応で実施し、ラセミ化を回避し、それによって少なくとも88%、好ましくは少なくとも90%、より好ましくは少なくとも95、96、97、98または99%の鏡像異性体純度のR-鏡像異性体として式IIの化合物が得られることを特徴とする方法である。
(a)メチル化剤は硫酸ジメチル、ヨウ化メチルまたはリン酸トリメチルから選択される。硫酸ジメチルが特に好ましい。
(b)第1の(水)相は水酸化ナトリウム水溶液、水酸化リチウム水溶液、水酸化カリウム水溶液、炭酸ナトリウム水溶液または炭酸カリウム水溶液などのアルカリ性水溶液である。水酸化ナトリウム水溶液が特に好ましい。
(c)第2の(有機)相はトルエン、ヘキサン、塩化メチレンまたはメチルt-ブチルエーテルから選択される。トルエンが特に好ましい。
(d)相間移動触媒は、式IVのアンモニウム塩もしくはホスホニウム塩、式Vのスルホニウム塩または式VIのピリジニウム塩である。
(a)メチル化剤の量は、式Iの化合物に対して1〜5モル当量であり、
(b)アルカリ水溶液は5〜50重量/重量%溶液として、式Iの化合物に対して1.1〜10モル当量の量で提供され、
(c)式Iの化合物に対する有機溶媒の量は、好ましくは3〜20容、具体的には3〜20I/kg式I化合物であり、
(d)相間移動触媒の量は式Iの化合物の0.01〜0.1モル当量である。
(a)トリエチルアミン、ジイソプロピルエチルアミン、1,8-ジアザビシクロ[5.4.0]ウンデカ-7-エン、炭酸水素カリウムまたはモルホリン誘導体、好ましくは4-メチルモルホリンなどの塩基と、
(b)カルボジイミドまたはクロロギ酸アルキル、好ましくはクロロギ酸イソブチルなどのカルボキシル基活性化剤
の存在下で、ある量のベンジルアミンを加えることによって実施することができる。
(a)本発明による方法によってラコサミドを生成するステップと、
(b)ラコサミドを、薬剤として許容される賦形剤と混合するステップ
による薬剤配合物の製造方法に関する。
を生成することを含む式VIIIの化合物の生成方法であって、O-メチル化を1段反応で実施し、式VIIIの化合物を化合物VIIと同一構造で、少なくとも88%、好ましくは少なくとも90%、より好ましくは少なくとも95%、96%、97%、98%または99%の鏡像異性体純度で得ることを特徴とする方法である。
(実施例1)
ブチルリチウムを用いた(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)の生成(ステップ1a)
脱水テトラヒドロフラン(352ml)中のN-Boc-D-セリン(22g、0.107モル)の溶液を窒素雰囲気下で<-10℃に冷却した。これに、乾燥した添加漏斗で、温度を<10℃に保持しながらヘキサン中の15重量/重量%のn-ブチルリチウム(134ml、0.216モル)を加えた。得られたスラリーを0〜5℃で1時間熟成した。温度を0〜5℃に保持しながら硫酸ジメチル(12.1ml、0.128モル)を加え、反応混合物を0〜5℃で9時間熟成した。水(110ml)を加えて反応をクエンチさせ、30%水酸化ナトリウム(3ml)でpH10〜13に塩基性化し、テトラヒドロフラン/ヘキサンを真空下で蒸発させた。残留物をトルエン(44ml)で洗浄し、次いで50%クエン酸でpH<3.5に酸性化させた。酸性化した水相を塩化メチレン(2×91ml、1×66ml)で抽出し、一緒にしたC936抽出物を共沸蒸留で脱水した。蒸発させて23.7g、100%を得た。HPLC純度90.0%、キラル純度100%。
PTCを用いた(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)の生成(ステップ1b)
トルエン(110ml)中のN-Boc-D-セリン(22g、0.107モル)とテトラブチルアンモニウムブロミド(1.3g、0.004モル)の懸濁液を<10℃に冷却した。これに、温度を<10℃に保持しながら20%水酸化ナトリウム(17.6ml、0.107モル)を加え、得られた混合物を<10℃で30分間熟成した。温度を<10℃に保持しながら硫酸ジメチル(40.6ml、0.429モル)と50%水酸化ナトリウム(25.4ml、0.485モル)を加え、反応混合物を10℃で1時間熟成した。混合物に水(66ml)を加えて相を分離させた。水層を50%クエン酸でpH<3.5に酸性化して塩化メチレン(2×91ml、1×66ml)で抽出し、一緒にしたC936抽出物を共沸蒸留で脱水した。(蒸発により27.5g、100%、HPLC純度96.3%、キラル純度98.1%を得る)
ステップ2〜4
(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)溶液(ステップ2)
上記実施例2と同様にして生成したC936溶液を<-10℃に冷却し、クロロギ酸イソブチル(14.2ml、0.107モル)<-5℃で冷却した。N-メチルモルホリン(11.8ml、0.17モル)を<-5℃で加え、混合物を<-5℃で30分間熟成した。塩化メチレン中のベンジルアミン(12.2ml、0.11モル)の溶液を<-5℃で加え、混合物を室温に加温した。1時間熟成した後、混合物を水(44ml)、1N HCl(44ml)、8%重炭酸ナトリウム(44ml)および水(44ml)で洗浄して塩化メチレン中のC937溶液を得た。
上記のようにして生成したC937溶液に36%HCl(46.5ml、0.541モル)を加え、混合物を1時間熟成した。水(66ml)を加え、相を分離させた。有機相を水(22ml)で抽出し、水層を一緒にした。水層を<35℃で30%水酸化ナトリウムでpH10〜12に塩基性化し、塩化ナトリウム(8.8g)を加えた。水層を塩化メチレン(2×110ml)で抽出し、一緒にした有機層を水(44ml)で洗浄して(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドの塩化メチレン溶液を得た。
上記生成の(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミド溶液を<5℃に冷却し、<15℃で無水酢酸(10ml、0.106モル)を加えた。反応混合物を30分間かけて室温に加温し、さらに30分間熟成した。次いで、混合物を水(44ml)、8%重炭酸ナトリウム(44ml)および水(44ml)で洗浄した。蒸留によって塩化メチレンを酢酸エチルに交換して、115mlの体積になるまで溶液を蒸留した。溶液を0〜5℃に冷却して生成物を結晶化させ、純粋なラコサミドをろ過により単離した(18.7g、69.8%)。HPLC純度99.98%、キラル純度99.8% ee。
(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)の単離
実施例1で生成した(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)溶液を真空下で蒸発させて(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)をワックス状の固形物(23.7g、100%)として得た。HPLC純度90.0%。元素分析:C9H17NO5の計算値49.31%C;7.82%H;6.39%N。分析値49.12%C;7.72%H;8.97%N。
(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)の単離
上記実施例3で生成した(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)溶液を真空下で蒸発させて粗C937を油状固形物として得た。粗製固形物(2g)を60℃でヘキサン(30ml)中の10%クロロホルム中に溶解し、室温に冷却してこの温度で1時間放置した。得られた固形物をろ過により単離して粗C937(1.1g)を得た。この粗製固形物をさらに、10倍容積のヘキサン中の10%クロロホルムで2回再結晶化させて(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)を白色結晶性固形物(0.28g、14%)として得た。HPLC純度97.3%。元素分析:C16H24N2O5の計算値62.32%C;7.84%H;9.08%N。分析値62.19%C;7.79%H;9.04%N。
Claims (27)
- (a)相間移動触媒の存在下で実施される前記1段反応が、式Iの化合物、水相、有機相および相間移動触媒を含む相間移動反応系へのメチル化剤の添加を含む請求項1に記載の方法。
- 相間移動触媒としてピリジニウム塩、ホスホニウム塩、アンモニウム塩またはスルホニウム塩を用いる請求項2に記載の方法。
- 相間移動触媒がテトラブチルアンモニウムブロミドである請求項2から4のいずれか一項に記載の方法。
- (a)相間移動触媒の存在下で実施される前記1段反応において用いるメチル化剤が硫酸ジメチル、リン酸トリメチルまたはヨウ化メチルから選択される請求項2から5のいずれか一項に記載の方法。
- 水相が水酸化ナトリウム水溶液、水酸化リチウム水溶液、水酸化カリウム水溶液、炭酸ナトリウム水溶液または炭酸カリウム水溶液である請求項2から6のいずれか一項に記載の方法。
- 有機溶媒がトルエン、ヘキサン、塩化メチレンまたはメチルt-ブチルエーテルである請求項2から7のいずれか一項に記載の方法。
- (a)相間移動触媒の存在下で実施される前記1段反応を0〜10℃で少なくとも30分間実施する請求項1から8のいずれか一項に記載の方法。
- (b)メチル化剤および有機リチウム化合物の存在下において実施する前記1段反応において、メチル化剤が硫酸ジメチルである請求項1に記載の方法。
- (b)メチル化剤および有機リチウム化合物の存在下において実施する前記1段反応において、有機リチウム化合物がブチルリチウムである請求項1または10に記載の方法。
- (b)メチル化剤および有機リチウム化合物の存在下において実施する前記1段反応において、有機リチウム化合物の存在下でのO-メチル化を、0〜10℃の温度で少なくとも5時間実施する請求項1、10または11に記載の方法。
- 式IIの化合物とベンジルアミンの反応を、カルボキシル基の活性化剤および塩基の存在下で実施する請求項13に記載の方法。
- 塩基が4-メチルモルホリン、トリエチルアミン、ジイソプロピルエチルアミン、1.8-ジアザビシクロ[5.4.0]ウンデカ-7-エンまたは炭酸水素カリウムであり、カルボキシル基の活性化剤がクロロギ酸アルキルまたはカルボジイミドである請求項14に記載の方法。
- 逐次、(a)(i)鉱酸または(ii)H2/Pd-Cの添加によって式IIIの化合物から保護基Rxを離脱させて(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドを得るステップと、
(b)(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドと無水酢酸の反応によって、メチルカルボニル基を(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドに付加するステップ
を行うことによって、N-保護基Rxをメチルカルボニルで置換する請求項13から15のいずれか一項に記載の方法。 - ステップ(b)を、ピリジンの不在下で実施する請求項16に記載の方法。
- N-保護基Rxを離脱させて(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドを得る請求項13から15のいずれか一項に記載の方法。
- ラコサミドを、結晶化によって最終反応ミックスから単離する請求項1から18のいずれか一項に記載の方法。
- N-保護基がt-ブチオキシカルボニル(Boc)である請求項1から19のいずれか一項に記載の方法。
- 塩基の不在下での(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドの無水酢酸によるN-アセチル化ステップを含む、請求項1から20のいずれか一項に記載の方法。
- ピリジンの不在下での(R)-2-アミノ-N-ベンジル-3-メトキシプロピオンアミドの無水酢酸によるN-アセチル化ステップを含む、請求項1から21のいずれか一項に記載の方法。
- 式IIの化合物が(R)-2-N-Boc-アミノ-3-メトキシプロパン酸(C-936)またはその塩である、請求項1から22のいずれか一項に記載の方法。
- 式IIIの化合物が(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)またはその塩である、請求項13から18のいずれか一項に記載の方法。
- 請求項13から23のいずれか一項に記載の、(R)-2-アセトアミド-N-ベンジル-3-メトキシプロピオンアミド(ラコサミド)の生成方法における、(R)-N-ベンジル-2-N-Boc-アミノ-3-メトキシプロピオンアミド(C-937)またはその塩の、式IIIの化合物としての使用。
- 連続した、(a)請求項1から23のいずれか一項によってラコサミドを生成するステップと、(b)ラコサミドを薬剤として許容される賦形剤と混合するステップ
によってラコサミドを含む医薬製剤を製造する方法。 - 相間移動反応で、D-セリンをジ-t-ブチルジカーボネートと反応させることによって、式Iの化合物としてN-Boc-D-セリンを生成することをさらに含む、請求項1から23のいずれか一項に記載の方法。
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