7-(6-bromopyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine 、
(1S,4S)-2,5-二氮双环[2.2.1]庚烷二氢溴酸盐 在
silica gel 作用下,
以to give 7-(6-((1S,4S)-2,5-diazabicyclo[2.2.1]heptan-2-yl)pyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine的产率得到7-(6-((1S,4S)-2,5-diazabicyclo[2.2.1]heptan-2-yl)pyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine