Atomic structure
There are 3 chemically distinct structures. Please, select:

O=C(/C=C/c1ccc(O)c(O)c1)O[C@H]1[C@H](O[C@H]2[C@H](Oc3c(-c4ccc(O)c(O)c4)oc4cc(O[C@@H]5O[C@H](CO)[C@@H](O)[C@H](O)[C@H]5O)cc(O)c4c3=O)O[C@H](CO)[C@@H](O)[C@@H]2O)O[C@H](CO)[C@@H](O)[C@@H]1O