ethyl 3-[3-(1H-indazol-4-yl)-2-pyridin-4-ylpyrazolo[1,5-a]pyrimidin-7-yl]-8-azabicyclo[3.2.1]octane-8-carboxylate 、
碘代三甲硅烷 在
silica gel 作用下,
以
氯仿 为溶剂,
以to provide 7-(8-azabicyclo[3.2.1]oct-3-yl)-3-(1H-indazol-4-yl)-2-pyridin-4-ylpyrazolo[1,5-a]pyrimidine as a yellow solid in 90% yield after silica gel chromatography的产率得到7-(8-azabicyclo[3.2.1]oct-3-yl)-3-(1H-indazol-4-yl)-2-pyridin-4-ylpyrazolo[1,5-a]pyrimidine