英文别名Methyl 1-(Methoxycarbonyl)cyclopent-3-enecarboxylate; DIMETHYL 3-CYCLOPENTENE-1,1-DICARBOXYLATE; 3-CYCLOPENTENE-1,1-DICARBOXYLIC ACID DIMETHYL ESTER; 3-Cyclopentene-1,1-dicarboxylic acid, 1,1-dimethyl ester; dimethyl cyclopent-3-en-1,1-dicarboxylate; 3-Cyclopentene-1,1-dicarboxylic acid, dimethyl ester 
