6-amino-4-(4-chlorophenyl)-3-methyl-4,7-dihydro-1H-pyrazolo[3,4-b]pyridine-5-carbonitrile 、
ethyl N-(pyridin-2-yl)formimidate 在
溶剂黄146 作用下,
以73%的产率得到N-(4-(4-chlorophenyl)-5-cyano-3-methyl-4,7-dihydro-1H-pyrazolo[3,4-b]pyridin-6-yl)-N'-(pyridin-2-yl)formamidine