(S)-2-({(2S,4R)-2-[(S)-2-[((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-3-(1-methyl-1H-indol-3-yl)-propionylamino]-4-methyl-octanoyl}-methyl-amino)-propionic acid methyl ester 在
lithium hydroxide 作用下,
生成 (S)-2-({(2S,4R)-2-[(S)-2-[((S)-2-tert-Butoxycarbonylamino-4-methyl-pentanoyl)-methyl-amino]-3-(1-methyl-1H-indol-3-yl)-propionylamino]-4-methyl-octanoyl}-methyl-amino)-propionic acid