Abstract
A new stilbene diglycoside, piceatannol-3, 4'-O-beta-D-diglucopyranoside (I), together with desoxyrhaponticin (II), emodin-1-O-beta-D-glucopyranoside (III), and physcion-8-O-b-D-glucopyranoside (IV), were isolated from the rhizomes of cultivated Korean rhubarb rhizomes (Rheum undulatum), Jong DaeWhang, and the structures of I-IV were identified on the basis of chemical and spectral evidences.
MeSH terms
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Chemical Phenomena
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Chemistry, Physical
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Disaccharides / isolation & purification*
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Glycosides / chemistry
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Glycosides / isolation & purification
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Hydrolysis
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Magnetic Resonance Spectroscopy
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Plant Extracts / chemistry
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Plant Roots / chemistry
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Plants, Medicinal*
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Rheum / chemistry*
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Spectrophotometry, Infrared
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Spectrophotometry, Ultraviolet
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Spectroscopy, Fourier Transform Infrared
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Stilbenes / chemistry
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Stilbenes / isolation & purification*
Substances
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Disaccharides
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Glycosides
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Plant Extracts
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Stilbenes
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piceatannol-3,4'-O-diglucopyranoside