英文别名4-OXO-PYRROLIDINE-1,3-DICARBOXYLIC ACID DIETHYL ESTER; 4-ketopyrrolidine-1,3-dicarboxylic acid diethyl ester; 1,3-Pyrrolidinedicarboxylic acid, 4-oxo-, 1,3-diethyl ester; 1-Ethoxycabonyl-pyrrolidon-(4)-carbonsaeure-(3)-ethylester; 1-Ethoxycarbonyl-4-oxo-pyrrolidin-3-carbonsaeure-ethylester; ethyl 1-ethoxycarbonyl-4-oxopyrrolidine-3-carboxylate; 4-Oxo-pyrrolidin-1,3-dicarbonsaeure-diaethylester; diethyl 4-oxotetrahydro-1H-1,3-pyrroledicarboxylate 
