英文别名methyl 4-methoxy-2-oxo-3-cyclopentene-1-carboxylate; methyl 4-methoxy-2-oxo-3-cyclopentenecarboxylate; 3-Cyclopentene-1-carboxylic acid, 4-methoxy-2-oxo-, methyl ester; methyl 1-methoxy-3-oxocyclopentene-4-carboxylate; 5-methoxycarbonyl-3-methoxy-cyclopent-2-enone 
