Atomic structure
There is only one chemically distinct structure:
[*]O[C@H]1[C@@H](O)[C@@H](CO[C@@H]2O[C@H](CO[C@@]3(C(=O)O)C[C@H](O)[C@H](NC(C)=O)[C@H]([C@@H](NC(C)=O)[C@H](C)O)O3)[C@@H](O)[C@H](O)[C@H]2O)O[C@@H](O[C@@H]2[C@@H](NC(C)=O)[C@H]([*])O[C@H](CO)[C@@H]2O)[C@@H]1O