Atomic structure

There are 2 chemically distinct structures. Please, select:

N[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1N

SVG file SMILES Show 3D Ionize

N[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1N