ethyl (E,4S)-4-[[(2S)-3,3-dimethyl-2-[[2-(methylamino)-2-(1-phenylcyclohexyl)acetyl]amino]butanoyl]-methylamino]-2,5-dimethylhex-2-enoate 在
lithium hydroxide 作用下,
以
甲醇 为溶剂,
反应 15.0h,
生成 (E,4S)-4-[[(2S)-3,3-dimethyl-2-[[(2S)-2-(methylamino)-2-(1-phenylcyclohexyl)acetyl]amino]butanoyl]-methylamino]-2,5-dimethylhex-2-enoic acid 、 (2E,4R)-2,5-dimethyl-4-(methyl{3-methyl-N-[(methylamino)(1-phenylcyclohexyl)acetyl]-L-valyl}amino)-2-hexenoic acid