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