英文别名2H-1,4-benzoxazine-7-carboxylic acid, 3,4-dihydro-3-oxo-; methyl 3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylate; Methyl 3-oxo-2,4-dihydro-1,4-benzoxazine-7-carboxylate; 3-keto-4H-1,4-benzoxazine-7-carboxylic acid methyl ester; 3-oxo-4H-1,4-benzoxazine-7-carboxylic acid methyl ester; methyl 3-oxo-4H-1,4-benzoxazine-7-carboxylate; 2H-1,4-Benzoxazine-7-carboxylic acid, 3,4-dihydro-3-oxo-, methyl ester; 7-methoxycarbonyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazine 
