Abstract
A new compound, (2R)-4-phenyl-2-O-[beta-D-xylopyranosyl(1-->6)-beta-D-glucopyranosyl]butane (1), has been isolated from the aerial parts of Rhododendren anthopogonoides, together with two known compounds, fraxin (2), and lyoniside (3). Their structures were determined by means of physico-chemical evidence and spectral analyses, including UV, IR, HR-FABMS, 1H and 13C NMR, and 2D NMR data.
MeSH terms
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Butanes / chemistry*
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Butanes / isolation & purification*
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Coumarins / chemistry
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Coumarins / isolation & purification
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Disaccharides / chemistry*
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Disaccharides / isolation & purification*
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Magnetic Resonance Spectroscopy
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Mass Spectrometry
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Plant Leaves / chemistry
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Rhododendron / chemistry*
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Sitosterols / chemistry
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Sitosterols / isolation & purification
Substances
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(2R)-4-phenyl-2-O-(beta-D-xylopyranosyl(1-6)-beta-D-glucopyranosyl)butane
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Butanes
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Coumarins
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Disaccharides
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Sitosterols
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lyoniside
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fraxin