Showing structure for C[Si](C)(C)OCC1OC(OC2=C(O)C=C(COC(=O)C3=CC(O)=C(O)C(O)=C3OC3=CC(C(=O)O)=CC(O)=C3O)C=C2O[Si](C)(C)C)C(O)C(O)C1O