1,2,3,4-Tetrahydro-1-methyl-8-phenyl-6H-pyrido(1,2-a)pyrimidin-6-one 1-Methyl-6-oxo-8-phenyl-1,2,3,4,6-pentahydropyrido(1,2-a)pyrimidine 66066-04-4 6H-Pyrido(1,2-a)pyrimidin-6-one, 1,2,3,4-tetrahydro-1-methyl-8-phenyl-