DMDA-2,2-dimethylmalonic-boc-N'-methylhydrazine 、
PNPC-1918 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以84%的产率得到methyl (8S)-8-(chloromethyl)-4-[2-[[2,2-dimethyl-3-[methyl-[(2-methylpropan-2-yl)oxycarbonylamino]amino]-3-oxopropanoyl]-methylamino]ethyl-methylcarbamoyl]oxy-6-(5-methoxy-1-benzofuran-2-carbonyl)-2-methyl-7,8-dihydro-3H-pyrrolo[3,2-e]indole-1-carboxylate