119986-67-3 3-Furancarboxylic acid, 2-(3,4-dimethoxyphenyl)tetrahydro-5-oxo-, methyl ester, trans-(+-)- 5-Dpto-furancarboxylic acid Methyl 5-(3,4-dimethoxyphenyl)-2,3,4,5-tetrahydro-2-oxo-4-furancarboxylate