(S)-1-[(2S,3S)-2-[(2S,3R)-2-(Benzyloxycarbonyl-methyl-amino)-3-hydroxy-butyrylamino]-3-(4-benzyloxy-phenyl)-3-methoxy-propionyl]-piperidine-2-carboxylic acid benzyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
以87%的产率得到(S)-1-[(2S,3S)-2-((2S,3R)-3-Hydroxy-2-methylamino-butyrylamino)-3-(4-hydroxy-phenyl)-3-methoxy-propionyl]-piperidine-2-carboxylic acid