(2S,4S)-2-(tert-Butoxycarbonylamino-methyl)-4-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-pyrrolidine-1-carboxylic acid benzyl ester 在
palladium on activated charcoal
氢气 作用下,
以98%的产率得到[(2S,4S)-4-(5-Methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-pyrrolidin-2-ylmethyl]-carbamic acid tert-butyl ester