COc1c(C)c2c(c(O)c1C/C=C(\C)CCC(=O)O)C(=O)OC2OC	(E)-6-(4-hydroxy-1,6-dimethoxy-7-methyl-3-oxo-1H-2-benzofuran-5-yl)-4-methylhex-4-enoic acid