(4S)-1-[(4S)-2-benzyl-5,5-dimethyl-1,3-dioxo-isothiazolidine-4-yl]-3,3-dibromo-4-chloro-azetidine-2-one 以
二氯甲烷 为溶剂,
生成 (4R)-1-[(4S)-2-benzyl-5,5-dimethyl-1,1,3-trioxo-isothiazolidine-4-yl]-3,3-dibromo-4-chloro-azetidine-2-one 、 (4S)-1-[(4S)-2-benzyl-5,5-dimethyl-1,1,3-trioxo-isothiazolidine-4-yl]-3,3-dibromo-4-chloro-azetidine-2-one