Atomic structure
There is only one chemically distinct structure:
COc1cc(/C=C/C(=O)OC[C@H]2O[C@@H](Oc3cc4c(O)cc(O)cc4[o+]c3-c3ccc(O)c(O)c3)[C@H](O)[C@@H](O)[C@@H]2O)ccc1O