Methyl 2-(4-chlorophenoxy)butanoate 在
penicillin G acylase immobilized on aminopropyl silica 作用下,
以
phosphate buffer 为溶剂,
生成
(S)-2-(4-chlorophenoxy)butanoic acid 、
(R)-2-(4-chlorophenoxy)butanoic acid 、 methyl (2S)-2-(4-chlorophenoxy)butanoate 、 methyl (2R)-2-(4-chlorophenoxy)butanoate