Showing structure for COC1=CC(OC2OC(COC3OC(CO)C(O[Si](C)(C)C)C(O)C3O)C(O[Si](C)(C)C)C(O)C2O[Si](C)(C)C)=C2C(O)=C3C(=O)OC(C)=CC3=CC2=C1