C/C=C/[C@H](O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O)[C@H](C)/C=C(C)/C=C/C/C(C)=C/Cc1nc(OC)c(OC)c(O)c1C	11-demethyl-glucopiericidin A