Abstract
A new furofuran lignan, 4-hydroxykobusin (3), together with known lignans, kobusin (1), and 7,7'-dihydroxybursherenin (2), were isolated from the whole plant of Geranium thunbergii Sieb. et Zucc (Geraniaceae). The structures were determined based on the spectral data and a comparison with the published data. This is the first report of the presence of furofuran lignan in Geranium species.
MeSH terms
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Cell Line
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Furans / chemistry*
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Furans / isolation & purification
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Geranium / chemistry*
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Interleukin-6 / analysis
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Lignans / chemistry*
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Lignans / isolation & purification
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Magnetic Resonance Spectroscopy
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Plant Extracts / analysis
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Spectrometry, Mass, Electrospray Ionization
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Spectrophotometry, Ultraviolet
Substances
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4-hydroxykobusin
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Furans
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Interleukin-6
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Lignans
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Plant Extracts