2,3-二甲基马来酸酐

2,5-dihydrofuran-3,4-dicarboxylic acid

3,4-bis(bromomethyl)furan-2,5-dione

3,4-二(羟基甲基)-2,5-呋喃二酮

(6R,6aS,7S,10R,10aR,10bR)-dimethyl 2-oxo-2,6,6a,7,10,10a-hexahydro-7,10-epoxy-6,10b-ethenobenzo[6,7]cyclohepta[1,2-b]furan-8,9-dicarboxylate