英文别名2-(2-Cyclopentenyl)malonic acid diethyl ester; Propanedioic acid, 2-cyclopenten-1-yl-, diethyl ester; 2-Cyclopentene-1-Malonic acid, diethyl ester; DIETHYL 2-CYCLOPENTENYLMALONATE; diethyl 2-cyclopent-2-en-1-ylpropanedioate; 2-cyclopenten-1-yl-propanedioic acid,diethyl ester; cyclopent-2-enyl-malonic acid diethyl ester; diethyl cyclopent-2-en-1-ylmalonate; Cyclopent-2-enyl-malonsaeure-diaethylester 
