Showing structure for CC(C)(C)[Si](C)(C)OC1=CC=C(C2CC(=O)C3=C(C=C(O)C(O[Si](C)(C)C(C)(C)C)=C3OC3OC(CO)C(O[Si](C)(C)C(C)(C)C)C(O)C3O)O2)C=C1