6-(2,6-dichlorophenyl)-2-(2-ethoxy-ethoxy)-8-methyl-8H-pyrido[2,3-d]pyrimidin-7-ylideneamine 在
hydrochloride salt 、
乙醇乙酸乙酯 作用下,
以
盐酸 为溶剂,
反应 0.08h,
以to afford crystalline 6-(2,6-dichlorophenyl)-2-hydroxy-8-methyl-8H-pyrido[2,3-d]pyrimidin-7-ylideneamine, hydrochloride的产率得到6-(2,6-dichlorophenyl)-2-hydroxy-8-methyl-8H-pyrido[2,3-d]pyrimidin-7-ylideneamine, hydrochloride