Showing structure for CC(C=C(CC(C)(O)C1C=C(O[Si](C)(C)C)C2(C)C3=C(C(=O)CC12C)C1(C)CCC(O[Si](C)(C)C)C(C)(C)C1CC3O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O[Si](C)(C)C