Showing structure for CC(C)(C)[Si](C)(C)OC(=O)C1O[C@H](O[C@@H]2CC[C@@]3(C)[C@@H](CC[C@H]4[C@@H]5CC[C@H](O)[C@@]5(C)CC[C@@H]43)C2)[C@H](O)C(O)[C@@H]1O[Si](C)(C)C(C)(C)C