(E)-3-[4-(2-chloro-phenylamino)-6-(2-chloro-phenyl)-2-methylsulfanyl-pyrimidin-5-yl]-acrylic acid methyl ester 、
sodium methylate 在
4,8-bis-(2-chlorophenyl)-2-methoxy-8H-pyrido[2,3-d]pyrimidin-7-one 作用下,
以to afford the title compound 4,8-bis-(2-chloro-phenyl)-2-methoxy-8H-pyrido[2,3-d]pyrimidin-7-one的产率得到4,8-bis-(2-chlorophenyl)-2-methoxy-8H-pyrido[2,3-d]pyrimidin-7-one