Showing structure for COC1=CC(C2OCC3C(C4=CC(OC)=C(OC5OC(CO[Si](C)(C)C)C(O[Si](C)(C)C)C(O)C5O)C(OC)=C4)OCC23)=CC(OC)=C1OC1OC(CO)C(O)C(O)C1O