Atomic structure
There is only one chemically distinct structure:
C=C(C)[C@@H]1CC[C@]2(C)[C@@H]3[C@@H](C[C@@H]4[C@H]5[C@H](C(=C)C)CC[C@]5(C(=O)O[C@@H]5O[C@H](CO[C@@H]6O[C@H](CO)[C@@H](O[C@@H]7O[C@@H](C)[C@H](O)[C@@H](O)[C@H]7O)[C@H](O)[C@H]6O)[C@@H](O)[C@H](O)[C@H]5O)CC[C@]42C)OC(=O)CC[C@@]13C