Process for preparing 2-(4-pyridyl)amino-6-dialkyloxyphenyl-pyrido(2,3-d)pyrimidin-7-ones

摘要

A process for preparing a 2-(pyridin-4-ylamino)-pyrido[2,3-d]pyrimidine of Formula II comprising reacting a 4-aminopyridine of the formula with an alkali metal amide or hydride and a 2-alkylsulfanyl-pyrido[2,3-d]pyrimidine of Formula I wherein R¹, R², R' and R'', and aryl are as defined in the specification.