4,8-bis-(2-chlorophenyl)-2-methanesulfonyl-8H-pyrido[2,3-d]pyrimidin-7-one 、
C.I.酸性橙108 在
4-(2-chlorophenyl)-8-(2-chlorophenyl)-2-(2-hydroxyethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one 作用下,
以to afford the title compound 4,8-bis-(2-chloro-phenyl)-2-(2-hydroxy-ethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one的产率得到4-(2-chlorophenyl)-8-(2-chlorophenyl)-2-(2-hydroxyethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one