[H]\C(=C(/[H])C1=CC(O)=C(O)C=C1)C(=O)OC(C(OC(=O)C([H])=C([H])C1=CC(O)=C(O)C=C1)C(=O)OC1OC(C(O)C(O)C1O)C(O)=O)C(O)=O