(3'S,5RS)-5-[N-[6-acetimidoylamino-3-(benzyloxycarbonylamino)hexanoyl]-N-methylamino]-5,6-dihydro-2-ureidopyrimid-4(1H)-one 在
氢气 、 palladium dichloride 作用下,
以
甲醇 为溶剂,
以82%的产率得到(3'S,5RS)-5-[N-(6-acetimidoylamino-3-aminohexanoyl)-N-methylamino]-5,6-dihydro-2-ureidopyrimid-4(1H)-one dihydrochloride