4-氧代-4H-吡啶并[1,2-A]嘧啶-3-羧酸乙酯; 4-氧代-4H-吡啶并[1,2-A]嘧啶-3-甲酸乙酯;

4-Oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester; 3-Carboethoxy-4H-pyrido[1,2-a]pyrimidin-4-one; 4H-Pyrido[1,2-a]pyrimidine-3-carboxylic acid, 4-oxo-, ethyl ester; 4-ketopyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester; 4-oxo-3-pyrido[1,2-a]pyrimidinecarboxylic acid ethyl ester; ethyl 4-oxopyrido[1,2-a]pyrimidine-3-carboxylate; 4H-Pyrido[1,2-a]pyrimidine-4-oxo-3-carboxylic acid ethyl ester;