(9H-fluoren-9-yl)methyl (2-(2-(2-(2-azidoethoxy)ethoxy)ethoxy)ethyl)carbamate 、
methyl (2R,3R,4S)-3-acetamido-4-[bis[(2-methylpropan-2-yl)oxycarbonylamino]methylideneamino]-2-[(S)-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-(prop-2-ynylcarbamoyloxy)methyl]-3,4-dihydro-2H-pyran-6-carboxylate 在
copper(ll) sulfate pentahydrate 、
sodium ascorbate 作用下,
以
二氯甲烷 、
水 为溶剂,
反应 7.0h,
以78%的产率得到methyl (2R,3R,4S)-3-acetamido-4-[bis[(2-methylpropan-2-yl)oxycarbonylamino]methylideneamino]-2-[(S)-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-[[1-[2-[2-[2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]ethoxy]ethoxy]ethyl]triazol-4-yl]methylcarbamoyloxy]methyl]-3,4-dihydro-2H-pyran-6-carboxylate