COc1ccc(/C=C2\Oc3c(OC)c(O)cc(O[C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)c3C2=O)cc1	(Z)-6-hydroxy-7-methoxy-2-(4-methoxybenzylidene)-1-benzofuran-3(2H)-one 4-O-尾-D-glucopyranoside