Showing structure for CC(=O)OCC1OC(OC2C(OC3=C(C4=CC=C(O)C=C4)OC4=CC(O)=CC(O)=C4C3=O)OC(CO)C(O[Si](C)(C)C(C)(C)C)C2O[Si](C)(C)C(C)(C)C)C(O)C(O)C1O