Atomic structure

There are 2 chemically distinct structures. Please, select:

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

SVG file SMILES Show 3D Ionize

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