Showing structure for COC1=CC(O)=C2C(=O)C=C(C3=CC=C(O[Si](C)(C)C)C=C3)OC2=C1C1OC(CO)C(O[Si](C)(C)C)C(O)C1OC1OC(C)C(O)C(O[Si](C)(C)C)C1O