Showing structure for OC1C(O)C2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OCC2OC1OC1=CC(O)=C(C(=O)C2=CC=CC=C2)C(O)=C1