Showing structure for CC1=C[C@@H]2[C@@H]3[C@@H]4C(=C(C)[C@@H]3[C@]13[C@H]1OC(=O)[C@@H](C)[C@@H]1CC[C@](C)(O[Si](C)(C)C)[C@H]23)[C@@H]1OC(=O)[C@@H](C)[C@@H]1CC[C@]4(C)O