5-(Benzyloxycarbonyl-methyl-amino)-2-(carbamoylmethyl-amino)-4-oxo-5,6-dihydro-4H-pyrimidine-1-carboxylic acid tert-butyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气   、                                                                                                  silver perchlorate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基乙酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 tert-butyl 2-(2-amino-2-oxoethyl)imino-5-[methyl-[(3S)-3-(phenylmethoxycarbonylamino)-6-[phenylmethoxycarbonyl-(N'-phenylmethoxycarbonylcarbamimidoyl)amino]hexanoyl]amino]-4-oxo-1,3-diazinane-1-carboxylate