Abstract
Two new prenylated flavonoids, thunbergiols A (1) and B (2), along with three known compounds, chrysin (3), quercetin (4) and berberine (5) were obtained from the methanolic extract of roots of Berberis thunbergii DC. MS, NMR and other spectroscopic techniques were employed for their structural characterisation.
Keywords:
Berberis thunbergii DC.; berberine; prenylated flavonoids; thunbergiol A; thunbergiol B.
MeSH terms
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Berberine / chemistry
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Berberine / isolation & purification
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Berberis / chemistry*
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Flavonoids / chemistry*
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Flavonoids / isolation & purification
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Plant Extracts / chemistry
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Plant Roots / chemistry
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Prenylation
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Quercetin / chemistry
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Quercetin / isolation & purification
Substances
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Flavonoids
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Plant Extracts
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thunbergiol A
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thunbergiol B
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Berberine
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chrysin
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Quercetin