Abstract
Two new sesquiterpenes, 4-methoxycarbonyl-7-(1-methylethyl)-6-oxo-3,3a,7,8,8a-pentahydroazulene-1-carboxylic acid (viscoazusone) and 1,4-dimethoxy-carbonyl-7-(1-methylethyl)-6-oxo-3,3a,7,8,8a-pentahydroazulene (viscoazulone), were isolated from the whole plant of Polygonum viscosum. The structures of these compounds were determined by spectroscopic means.
MeSH terms
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Azulenes
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Bangladesh
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Chromatography, High Pressure Liquid
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Molecular Conformation
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Plants, Medicinal / chemistry*
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Polygonaceae / chemistry*
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Sesquiterpenes / chemistry
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Sesquiterpenes / isolation & purification*
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Spectroscopy, Fourier Transform Infrared
Substances
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Azulenes
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Sesquiterpenes
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viscoazulone
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viscoazusone