(S)-5-Cyclohexyl-4-dibenzylamino-3-oxo-pentanoic acid ethyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
生成 (3R,4S)-5-Cyclohexyl-4-dibenzylamino-3-hydroxy-pentanoic acid ethyl ester 、 (3S,4S)-5-Cyclohexyl-4-dibenzylamino-3-hydroxy-pentanoic acid ethyl ester