2-(1,3-Dimethyl-6-nitro-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidin-5-yl)-malonic acid diethyl ester 在
palladium oxide on charcoal
氢气 作用下,
以
乙醇 为溶剂,
以86.8%的产率得到6,8-dimethyl-1-ethoxycarbonyl-1,2,6,7,8,9-hexahydro-3H-pyrrolo(2',3':4,5)pyrido<2,3-d>pyrimidine