COc1c(C)c2c(c(O)c1/C=C/[C@]1(C)CCC(=O)O1)C(=O)OC2	(3′S)-(E)-7-hydroxy-5-methoxy-4-methyl-6-[2-(2-methyl-5-oxotetrahydrofuran-2-yl)vinyl]isobenzofuran-1(3H)-one