8-(2,6-difluoro-phenyl)-4-(2-fluorophenyl)-2-methanesulfonyl-8H-pyrido[2,3-d]pyrimidin-7-one 、
丝氨醇 在
8-(2,6-difluorophenyl)-4-(2-fluorophenyl)-2-(2-hydroxy-1-hydroxymethylethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one 作用下,
以to afford the title compound, 8-(2,6-difluoro-phenyl)-4-(2-fluoro-phenyl)-2-(2-hydroxy-1-hydroxymethyl-ethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one的产率得到8-(2,6-difluorophenyl)-4-(2-fluorophenyl)-2-(2-hydroxy-1-hydroxymethylethylamino)-8H-pyrido[2,3-d]pyrimidin-7-one