Showing structure for COC1OC(COC(=O)C2=CC(O)=C(O)C(O[Si](C)(C)C)=C2)C(OC(=O)C2=CC(O)=C(O)C(O)=C2)C(OC(=O)C2=CC(O)=C(O)C(O)=C2)C1O