Atomic structure

There are 2 chemically distinct structures. Please, select:

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

SVG file SMILES Show 3D Ionize

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