Atomic structure
There is only one chemically distinct structure:
*O[C@H]1C[C@@](*)(C(=O)O)O[C@@H]([C@H](O)[C@@H](CO)O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2NC(C)=O)[C@@H]1O