3-iodo-7-(6-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl)pyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine 、
7-氟-4-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)-1H-吲唑 以provided 3-(7-fluoro-1H-indazol-4-yl)-7-(6-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl)pyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine as a hydrochloride salt的产率得到3-(7-fluoro-1H-indazol-4-yl)-7-(6-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl)pyridin-3-yl)-2-(pyridin-4-yl)pyrazolo[1,5-a]pyrimidine