Abstract
Two new phenolic compounds, 5-hydroxy-2-[2-(4-hydroxyphenyl) acetyl]-3-methoxylbenzoic acid (1) and (2S,3S)-3,7,8,3',4'-pentahydroxyflavane (2), were obtained from the aqueous extract of Acacia catechu, along with four known compounds identified as rhamnetin (3), 4-hydroxyphenyl ethanol (4), 3,3',5,5',7-pentahydroxyflavane (5), and fisetinidol (6). Their structures were determined on the basis of spectroscopic analysis. Free radical-scavenging activities of the new compounds were evaluated.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acacia / chemistry*
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Benzoates / chemistry
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Benzoates / isolation & purification*
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Benzoates / pharmacology
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Drugs, Chinese Herbal / pharmacology
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Flavonoids / chemistry
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Flavonoids / isolation & purification*
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Flavonoids / pharmacology
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Free Radical Scavengers / chemistry
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Free Radical Scavengers / isolation & purification*
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Free Radical Scavengers / pharmacology
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Molecular Structure
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Phenols / chemistry
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Phenols / isolation & purification*
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Phenols / pharmacology
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Quercetin / analogs & derivatives
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Quercetin / chemistry
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Water
Substances
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(2S,3S)-3,7,8,3',4'-pentahydroxyflavane
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5-hydroxy-2-(2-(4-hydroxyphenyl) acetyl)-3-methoxylbenzoic acid
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Benzoates
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Drugs, Chinese Herbal
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Flavonoids
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Free Radical Scavengers
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Phenols
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Water
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rhamnetin
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Quercetin