Showing structure for C=C1CC23CC1C(O[Si](C)(C)C(C)(C)C)CC2C1(C)CCCC(C)(C(=O)O[Si](C)(C)C(C)(C)C)C1C(O[Si](C)(C)C(C)(C)C)C3O[Si](C)(C)C(C)(C)C