2-(3-{(S)-1-[2-(N'-Benzyloxycarbonyl-N'-methyl-hydrazino)-2-oxo-ethylcarbamoyl]-2-methyl-propyl}-ureido)-succinic acid dimethyl ester 在
sodium hydroxide 、
柠檬酸 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以96%的产率得到2-(3-{(S)-1-[2-(N'-Benzyloxycarbonyl-N'-methyl-hydrazino)-2-oxo-ethylcarbamoyl]-2-methyl-propyl}-ureido)-succinic acid