1,1-dimethylethyl [4-(7-amino-1-ethyl-4-phenyl-1H-imidazo[4,5-c]pyridin-2-yl)-1,2,5-oxadiazol-3-yl]carbamate 、
4-氯羰酰四氢-吡啶羧酸苄酯 在
吡啶 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以50%的产率得到phenylmethyl 4-[({2-[4-({[(1,1-dimethylethyl)oxy]carbonyl}amino)-1,2,5-oxadiazol-3-yl]-1-ethyl-4-phenyl-1H-imidazo[4,5-c]pyridin-7-yl}amino)carbonyl]-1-piperidinecarboxylate