Showing structure for C[Si](C)(C)OCC1OC(C2=C(O)C(C3OCC(O)C(O)C3O[Si](C)(C)C)=C(O[Si](C)(C)C)C3=C2OC(C2=CC=C(O)C(O)=C2)=CC3=O)C(O)C(O)C1O