英文别名Ethyl 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylate; 3-keto-4H-1,4-benzoxazine-6-carboxylic acid ethyl ester; 3-oxo-4H-1,4-benzoxazine-6-carboxylic acid ethyl ester; ethyl 3-oxo-4H-1,4-benzoxazine-6-carboxylate; 2H-1,4-Benzoxazine-6-carboxylic acid, 3,4-dihydro-3-oxo-, ethyl ester 
