Abstract
One new bibenzyl, 7, and one new diarylheptanone, diobulbinone A (18), together with sixteen known compounds, 1-6 and 8-17, have been isolated form the rhizomes of Dioscorea bulbifera. Their structures were elucidated by NMR and MS analyses. Compound 7 showed high antioxidant capacity in FRAP assay and DPPH radical-scavenging activity.
Copyright © 2011 Verlag Helvetica Chimica Acta AG, Zürich.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antioxidants / isolation & purification*
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Antioxidants / pharmacology
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Bibenzyls / isolation & purification*
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Bibenzyls / pharmacology
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Biphenyl Compounds / chemistry
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Diarylheptanoids / isolation & purification*
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Diarylheptanoids / pharmacology
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Dioscorea / chemistry*
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Dose-Response Relationship, Drug
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Ferric Compounds / chemistry
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Oxidation-Reduction
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Picrates / chemistry
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Rhizome / chemistry
Substances
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Antioxidants
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Bibenzyls
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Biphenyl Compounds
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Diarylheptanoids
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Ferric Compounds
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Picrates
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1,1-diphenyl-2-picrylhydrazyl