Abstract
Two new compounds, (2S,3R)-methyl 7-hydroxy-2-(4-hydroxy-3-methoxy-phenyl)-3-(hydroxymethyl)-2,3-dihydrobenzofuran-5-carboxylate (1) and (4R,5S)-5-(3-hydroxy-2,6-dimethylphenyl)-4-isopropyldihydrofuran-2-one (2), tentatively named norcurlignan and limlactone, respectively, were isolated from Liriope muscari, together with the known compound (-)-pinoresinol (3). The structures of these compounds were elucidated and characterized on the basis of 1D NMR, 2D NMR, CD and MS data. The in vitro antioxidant activities of compounds 1-3 were assessed by the DPPH and ABTS scavenging methods.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Benzofurans / chemistry
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Benzofurans / isolation & purification*
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Benzothiazoles / chemistry
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Biphenyl Compounds / chemistry
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Chromatography, Gel
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Free Radical Scavengers / chemistry
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Free Radical Scavengers / isolation & purification*
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Free Radicals / chemistry
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Furans / chemistry
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Furans / isolation & purification
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Lignans / chemistry
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Lignans / isolation & purification
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Liriope Plant / chemistry*
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Magnetic Resonance Spectroscopy
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Medicine, Chinese Traditional
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Molecular Conformation
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Molecular Structure
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Picrates / chemistry
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Sulfonic Acids / chemistry
Substances
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(2S,3R)-methyl 7-hydroxy-2-(4-hydroxy-3-methoxy-phenyl)-3-(hydroxymethyl)-2,3-dihydrobenzofuran-5-carboxylate
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(4R,5S)-5-(3-hydroxy-2,6-dimethylphenyl)-4-isopropyldihydrofuran-2-one
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Benzofurans
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Benzothiazoles
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Biphenyl Compounds
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Free Radical Scavengers
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Free Radicals
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Furans
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Lignans
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Picrates
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Sulfonic Acids
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2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid
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1,1-diphenyl-2-picrylhydrazyl
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pinoresinol