2-Diethylamino-3-((2-oxazolidinon-3-yl)iminoethyl)-4-oxo-4H-pyrido(1,2-a)pyrimidine 34484-91-8 4H-Pyrido(1,2-a)pyrimidin-4-one, 2-(diethylamino)-3-(((2-oxo-3-oxazolidinyl)imino)methyl)-