作者:Amy E. Sigmund、Wonpyo Hong、Rafael Shapiro、Robert DiCosimo
DOI:10.1002/1615-4169(200108)343:6/7<587::aid-adsc587>3.0.co;2-v
日期:2001.8
(S)-enantiomer of racemic 4-oxo-1,2-pyrrolidinedicarboxylic acid dimethyl ester with high enantioselectivity (> 99.5% ee at 51% conversion). Regioselective hydrogenation of the isolated (R)-4-oxo-1,2-pyrrolidinedicarboxylic acid dimethyl ester produced (2R,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylic acid dimethyl ester in 98% yield, and subsequent hydrolysis of the ester and N-(alkoxycarbonyl) groups produced
南极念珠菌脂肪酶组分 B (CALB) 催化外消旋 4-氧代-1,2-吡咯烷二甲酸二甲酯的 (S)-对映异构体水解,具有高对映选择性(51% 转化率 > 99.5% ee)。分离的 (R)-4-氧代-1,2-吡咯烷二甲酸二甲酯的区域选择性氢化产生 (2R,4R)-4-羟基-1,2-吡咯烷二甲酸二甲酯,产率为 98%,随后水解酯和 N-(烷氧羰基) 基团以 98% 的产率和 96% 的 de 生成顺式-4-羟基-D-脯氨酸。4-羟基-1,2-吡咯烷二甲酸二甲酯的非对映体混合物也使用CALB进行拆分,以产生93至> 99.5%非对映体过量的顺式4-羟基-D-脯氨酸或反式-4-羟基-L-脯氨酸。