CC(C)=CCc1cc(C[C@@]2(C(=O)O)OC(=O)C(O)=C2c2ccc(O)cc2)ccc1O	5-dihydro-4-hydroxy-2-[[4-hydroxy-3-(3-methyl-2-butenyl)phenyl]methyl]-3-(4-hydroxyphenyl)-5-oxo-furancarboxylic acid