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