8-(3-methoxyphenyl)-4-methyl-3-(phenylsulfonyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazine 、
三溴化硼 在
3-[4-methyl-3-(phenylsulfonyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-8-yl]phenol 、 crude product 、 silica gel 、
methanol-dichloromethane 作用下,
以to yield 0.021 g (66%) of 3-[4-methyl-3-(phenylsulfonyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-8-yl]phenol as a yellow solid, MS 444.3 [M+H]的产率得到3-[4-methyl-3-(phenylsulfonyl)-7-pyridin-4-ylpyrazolo[5,1-c][1,2,4]triazin-8-yl]phenol