Atomic structure
There is only one chemically distinct structure:
COc1cc(/C=C/C(=O)OC[C@H]2O[C@@H](Oc3cc(O)c4c(=O)c(O)c(-c5ccc(O)cc5)oc4c3)[C@H](O)[C@@H](O)[C@@H]2O)ccc1O