Showing structure for CC(C)(C)[Si](C)(C)OC1=CC(O)=CC2=[O+]C(C3=CC=C(O)C(O)=C3)=C(OC3OC(CO)C(O)C(O)C3OC3OCC(O)C(O[Si](C)(C)C(C)(C)C)C3O)C=C12