2-[trans-4-((1S)-1-tert-butoxycarbonylamino-2-oxo-2-pyrrolidin-1-yl-ethyl)-cyclohexylcarbamoyl]-(1S,4R)-4-hydroxy-pyrrolidine-1-carboxylic acid benzyl ester 在
palladium 10% on activated carbon
氢气 作用下,
以
乙醇 为溶剂,
反应 16.0h,
以82%的产率得到(S)-(1-{trans-4-[((1S,4R)-4-hydroxy-pyrrolidine-2-carbonyl)-amino]-cyclohexyl}-2-oxo-2-pyrrolidin-1-yl-ethyl)-carbamic acid tert-butyl ester