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Showing structure for OC1C2OC3=CC(O)=CC(O)=C3C1C1=C3OC(C(CC3=C(O)C=C1O)OC(=O)C1=CC(OC3=C(O)C(O)=C(O)C=C23)=C(O)C(O)=C1)C1=CC(O)=C(O)C(O)=C1