Showing structure for COC1=CC(C2=[O+]C3=CC(O)=CC(OC4OC(CO)C(O)C(O[Si](C)(C)C)C4O)=C3C=C2OC2OC(CO[Si](C)(C)C)C(O)C(O)C2O)=CC(O)=C1O[Si](C)(C)C