Showing structure for C=C1[C@@H](O[Si](C)(C)C(C)(C)C)[C@]23C[C@@]1(O[Si](C)(C)C(C)(C)C)[C@@H](O)C[C@H]2[C@@]12C=C[C@H](O[Si](C)(C)C(C)(C)C)[C@@](C)(C(=O)O1)[C@H]2[C@@H]3C(=O)O