methyl (4S,5S)-5-[(1S)-4-[bis(phenylmethoxycarbonylamino)methylideneamino]-1-(9H-fluoren-9-ylmethoxycarbonylamino)butyl]-2,2-dimethyl-1,3-dioxolane-4-carboxylate 在
palladium on activated charcoal Dowex resin 、
氢气 、
溶剂黄146 作用下,
以
甲醇 、
水 为溶剂,
生成 (2S,3S,4S)-4-(9H-Fluoren-9-ylmethoxycarbonylamino)-7-guanidino-2,3-dihydroxy-heptanoic acid methyl ester