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