Atomic structure
There is only one chemically distinct structure:
CO[C@@H]1[C@H](O[C@@H]2[C@@H](C(=O)O)O[C@@H](O[C@@H]3[C@H](C)O[C@@H](O[C@@H]4[C@@H](O)[C@H](C)O[C@@H](O[C@H]5[C@H](O[C@H](C)[C@@H](N)C(=O)O)O[C@@H](C)[C@@H](O)[C@H]5O)[C@@H]4O)[C@@H](OC)[C@@H]3OC)[C@H](O)[C@H]2O)O[C@@H](C)[C@@H](OC(C)=O)[C@H]1OC