3-(S)-acetylthio-6-methyl-4-(S)-[({1-(S)-[(methylamino)carbonyl]-2-(3-indolyl)ethyl}amino)carbonyl]heptanoic acid methyl ester 在
ammonium hydroxide 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以57%的产率得到3-(S)-mercapto-6-methyl-4-(S)-[({1-(S)-[(methylamino)carbonyl]-2-(3-indolyl)ethyl}amino)carbonyl]heptanoic acid methyl ester