7-azido-N-(trityloxy)heptanamide 、
(2R,4R,5R,6R,8R,11R,12S,19R,20R)-11-ethyl-5-[(2S,3R,4S,6R)-4-[(4-ethynylphenyl)methyl-methylamino]-3-hydroxy-6-methyloxan-2-yl]oxy-4-methoxy-2,4,6,8,12,19-hexamethyl-10,13-dioxa-15,18-diazatricyclo[10.6.2.015,20]icos-1(18)-ene-7,9,14-trione 在
copper(l) iodide 、
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 24.0h,
以83%的产率得到7-[4-[4-[[[(2S,3R,4S,6R)-2-[[(2R,4R,5R,6R,8R,11R,12S,19R,20R)-11-ethyl-4-methoxy-2,4,6,8,12,19-hexamethyl-7,9,14-trioxo-10,13-dioxa-15,18-diazatricyclo[10.6.2.015,20]icos-1(18)-en-5-yl]oxy]-3-hydroxy-6-methyloxan-4-yl]-methylamino]methyl]phenyl]triazol-1-yl]-N-trityloxyheptanamide