摘要
报道了一条可用于工业生产的多西他赛C13侧链(4S,5R)-3-叔丁氧羰基-2-(4-甲氧基苯基)-4-苯基-1,3-噁唑烷-5-甲酸(1)的合成工艺。(2R,3S)-N-叔丁氧羰基-3-苯基异丝氨酸甲酯(2)与4-甲氧基苯甲醛二甲缩醛环化得(4S,5R)-3-叔丁氧羰基-2-(4-甲氧基苯基)-4-苯基-1,3-噁唑烷-5-甲酸甲酯,经氢氧化钠水解后,用阳离子交换树脂进行后处理得1,总收率78%(以2计),纯度99%。
A synthetic process for docetaxel C13 side chain (4S,5R) -3-(tert-butoxycarbonyl) -2-(4- methoxyphenyl) -4-phenyl- 1,3-oxazolidinyl-5-carboxylic acid (1) was reported. Methyl (2R,3S) -N- (tert- butoxycarbonyl)-3-phenylisoserinate (2) reacted with 4-methoxybenzaldehyde dimethyl acetal to give methyl (4S,5R)- 3- (tert-butoxycarbonyl) -2- (4-methoxyphenyl) -4-phenyl-l,3-oxazolidinyl-5-carboxylate, which was purified by recrystallization in ethyl acetate/cyclohexane. The latter was subjected to hydrolysis with sodium hydroxide and then acidification by cation exchange resin to afford the target compound 1 with a total yield of 78 % (based on 2) and a purity of 99%.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
2018年第1期53-56,共4页
Chinese Journal of Pharmaceuticals
基金
广东省普通高校青年创新人才项目(2014KQNCX182)