Atomic structure
There is only one chemically distinct structure:
[*]O[C@H]1[C@H](O[C@H]2[C@@H](C(N)=O)O[C@H](O[C@H]3[C@@H](C(N)=O)O[C@H](O[C@@H]4[C@@H](NC(C)=O)[C@H]([*])O[C@H](C)[C@H]4O)[C@H](NC(C)=O)[C@H]3O)[C@H](NC(C)=O)[C@H]2O)O[C@H](C)[C@@H](NC=O)[C@@H]1O