Showing structure for COC(=O)CCC(C)C1C=C(O[Si](C)(C)C(C)(C)C)C2(C)C3=C(C(O[Si](C)(C)C(C)(C)C)=CC12C)C1(C)CCC(=O)C(C)(C)C1C=C3O[Si](C)(C)C(C)(C)C