tert-butyl 4-(4-(3-(tert-butoxycarbonylamino)-5-cyano-6-(2-fluoro-4-methoxyphenyl)-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-4-yl)phenyl)piperazine-1-carboxylate 在
氧化锰 silica 作用下,
以
二氯甲烷 为溶剂,
反应 20.08h,
以to yield 2.16 g (97%) of tert-butyl 4-(4-(3-(tert-butoxycarbonylamino)-5-cyano-6-(2-fluoro-4-methoxyphenyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)phenyl)piperazine-1-carboxylate in the form of a yellow solid的产率得到tert-butyl 4-(4-(3-(tert-butoxycarbonylamino)-5-cyano-6-(2-fluoro-4-methoxyphenyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)phenyl)piperazine-1-carboxylate