Showing structure for CC(=O)OC1C(=O)C2=C(C(O)CC3C2(C)CCC(O[Si](C)(C)C)C3(C)C)C2(C)C(O[Si](C)(C)C)=CC(C(C)C=C(CC(C)C(=O)O[Si](C)(C)C)O[Si](C)(C)C)C12C