Atomic structure
There are 3 chemically distinct structures. Please, select:

CO[C@H]1[C@H](O)[C@@H](C(=O)O)O[C@@H](O[C@H]2CC[C@@]3(C)[C@@H](CC[C@]4(C)[C@@H]3CC=C3[C@@H]5CC(C)(C)C[C@@H](O)[C@]5(C)CC[C@]34C)C2(C)C)[C@@H]1O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O[C@@H]1O[C@@H](C)[C@H](O)[C@@H](O)[C@H]1O