(S)-2-[(Z)-(1R,2R)-2-Acetoxy-4-[(S)-2-(3-methoxy-5-methyl-naphthalene-1-carbonyloxy)-2-((S)-2-methyl-oxiranyl)-acetylamino]-4-(2-oxo-propylcarbamoyl)-1-triethylsilanyloxy-but-3-enyl]-aziridine-1-carboxylic acid benzyl ester 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以75%的产率得到(S)-2-[(1R,2S)-2-Acetoxy-3-bromo-4-[(Z)-(S)-2-(3-methoxy-5-methyl-naphthalene-1-carbonyloxy)-2-((S)-2-methyl-oxiranyl)-acetylimino]-4-(2-oxo-propylcarbamoyl)-1-triethylsilanyloxy-butyl]-aziridine-1-carboxylic acid benzyl ester