(+/-)-(1S,2S,3R,4R)-2-(t-butyloxycarbonylamino)-3-(acetamidomethyl)-cyclopentane-1,4-dicarboxylic acid dimethyl ester 在
lithium hydroxide 作用下,
以
甲醇 、
水 为溶剂,
生成
(+/-)-(1S,2S,3R,4R)-2-(t-butyloxycarbonylamino)-3-(acetamidomethyl)-4-(methoxycarbonyl)-cyclopentane-1-carboxylic acid