N-<5(S)-<(tert-butoxycarbonyl)amino>-4(S)-hydroxy-6-phenyl-2(R)-(phenylmethyl)hexanoyl>valine methyl ester 在
lithium hydroxide 作用下,
以
乙二醇二甲醚 为溶剂,
反应 6.0h,
以61%的产率得到N-<5(S)-<(tert-butoxycarbonyl)amino>-4(S)-hydroxy-6-phenyl-2(R)-(phenylmethyl)hexanoyl>valine