Showing structure for CC(C)(C)[Si](C)(C)OC1=C[C@H]2CC[C@@H]3[C@H]([C@@H](O[Si](C)(C)C(C)(C)C)C[C@@]4(C)[C@H]3CC[C@]4(O[Si](C)(C)C(C)(C)C)C(=O)CO)[C@@]2(C)CC1