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    <!-- http://purl.obolibrary.org/obo/CHEBI_26195 -->

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        <rdfs:label>polyphenol</rdfs:label>
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    <!-- http://purl.obolibrary.org/obo/CHEBI_6698 -->

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        <rdfs:label>(-)-matairesinol</rdfs:label>
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        <ns4:charge rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">0</ns4:charge>
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        <oboInOwl:hasRelatedSynonym>(3R,4R)-3,4-bis(4-hydroxy-3-methoxybenzyl)dihydrofuran-2(3H)-one</oboInOwl:hasRelatedSynonym>
        <ns4:inchi_key_string>MATGKVZWFZHCLI-LSDHHAIUSA-N</ns4:inchi_key_string>
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        <oboInOwl:hasAlternativeId>CHEBI:65005</oboInOwl:hasAlternativeId>
        <oboInOwl:hasDbXref>reaxys:93883</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:19935713</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>chemspider:106491</oboInOwl:hasDbXref>
        <oboInOwl:hasExactSynonym>(3R,4R)-3,4-bis(4-hydroxy-3-methoxybenzyl)dihydrofuran-2(3H)-one</oboInOwl:hasExactSynonym>
        <ns4:inchi_string>InChI=1S/C20H22O6/c1-24-18-9-12(3-5-16(18)21)7-14-11-26-20(23)15(14)8-13-4-6-17(22)19(10-13)25-2/h3-6,9-10,14-15,21-22H,7-8,11H2,1-2H3/t14-,15+/m0/s1</ns4:inchi_string>
        <oboInOwl:hasRelatedSynonym>Artigenin congener</oboInOwl:hasRelatedSynonym>
        <ns4:generalized_empirical_formula>C20H22O6</ns4:generalized_empirical_formula>
        <ns4:smiles_string>COc1cc(C[C@H]2COC(=O)[C@@H]2Cc2ccc(O)c(OC)c2)ccc1O</ns4:smiles_string>
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        <oboInOwl:hasAlternativeId>CHEBI:43819</oboInOwl:hasAlternativeId>
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        <oboInOwl:hasDbXref>cas:580-72-3</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:21522091</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>pubmed:20734328</oboInOwl:hasDbXref>
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        <oboInOwl:hasDbXref>pubmed:21736835</oboInOwl:hasDbXref>
        <oboInOwl:hasDbXref>kegg.compound:C10682</oboInOwl:hasDbXref>
        <ns3:IAO_0000115>A lignan that is γ-butyrolactone in which the 3 and 4 positions are substituted by 4-hydroxy-3-methoxybenzyl groups (the 3&lt;i&gt;R&lt;/i&gt;,4&lt;i&gt;R&lt;/i&gt;-diastereomer).</ns3:IAO_0000115>
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