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【结 构 式】 
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【分子编号】26482 【品名】(3S)-4-amino-3-[[(benzyloxy)carbonyl]amino]-4-oxobutyric acid 【CA登记号】 |
【 分 子 式 】C12H14N2O5 【 分 子 量 】266.25364 【元素组成】C 54.13% H 5.3% N 10.52% O 30.05% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号：(XXIV)Coupling of taxane intermediate (XIII) with benzyloxyacetic acid (XXI) in the presence of DCC and DMAP provided ester (XXII). After hydrogenolytic deprotection of the benzyl group of (XXII), the resulting hydroxyacetate ester (XXIII) was further condensed with N-carbobenzoxy-L-aspartic acid 1-amide (XXIV) to yield (XXV). Deprotection of the trichloroethoxycarbonyl groups of (XXV) with Zn and AcOH gave (XXVI). Finally, hydrogenolytic cleavage of the N-carbobenzoxy group of (XXVI) in the presence of p-toluenesulfonic acid furnished the title compound.
| 【1】 Tsujihari, K.; Hashiyama, T.; Ohashi, M.; Nakanishi, N. (Tanabe Seiyaku Co., Ltd.); Baccatin derivs. and processes for preparing the same. CA 2162759; EP 0712854; JP 1997151181; US 5589502 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XIII) | 26472 | methyl (9S,12S)-4-methoxy-12-[[(2S,5S,8S,11R)-5-(4-methoxybenzyl)-2,6,8,11,15,15-hexamethyl-4,7,10,13-tetraoxo-14-oxa-3,6,9,12-tetraazahexadec-1-anoyl](methyl)amino]-11-oxo-2-oxa-10-azatricyclo[12.2.2.1(3,7)]nonadeca-1(16),3(19),4,6,14,17-hexaene-9-carboxylate | C49H59Cl6NO18 | 详情 | 详情 | |
| (XXI) | 24966 | 2-ethoxyacetic acid | 627-03-2 | C4H8O3 | 详情 | 详情 |
| (XXII) | 26480 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-15-([(2R,3S)-2-[[2-(benzyloxy)acetyl]oxy]-3-[(tert-butoxycarbonyl)amino]-3-cyclopropylpropanoyl]oxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | C55H63Cl6NO20 | 详情 | 详情 | |
| (XXIII) | 26481 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-15-[[(2R,3S)-3-[(tert-butoxycarbonyl)amino]-3-cyclopropyl-2-(glycoloyloxy)propanoyl]oxy]-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | C48H57Cl6NO20 | 详情 | 详情 | |
| (XXIV) | 26482 | (3S)-4-amino-3-[[(benzyloxy)carbonyl]amino]-4-oxobutyric acid | C12H14N2O5 | 详情 | 详情 | |
| (XXV) | 26483 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-2-(benzoyloxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-15-yl (5S,12R)-5-(aminocarbonyl)-12-[(S)-[(tert-butoxycarbonyl)amino](cyclopropyl)methyl]-3,7,10-trioxo-1-phenyl-2,8,11-trioxa-4-azatridecan-13-oate | C60H69Cl6N3O24 | 详情 | 详情 | |
| (XXVI) | 26484 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-2-(benzoyloxy)-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-15-yl (5S,12R)-5-(aminocarbonyl)-12-[(S)-[(tert-butoxycarbonyl)amino](cyclopropyl)methyl]-3,7,10-trioxo-1-phenyl-2,8,11-trioxa-4-azatridecan-13-oate | C54H67N3O20 | 详情 | 详情 |
Extended Information