Showing structure for CC(C)(C)[Si](C)(C)OC1=C(O)C=C(C(=O)OC2=CC(C(=O)OC3=CC(C(=O)O)=CC(O)=C3O[Si](C)(C)C(C)(C)C)=CC(O)=C2O[Si](C)(C)C(C)(C)C)C=C1O