Abstract
Two new compounds, a xanthonoid and a flavonoid C-glycoside, were isolated from the ethyl acetate extract of the dried herb of Comastoma pedunlulatum. The structures of the new compounds were elucidated, respectively, as 1,8-dihydroxy-3,5-dimethoxyxanthone 1-O-[2-(4'-hydroxy-3',5'-dimethoxy-E-cinnamoyl)]-β-D-xylopyranosyl-(1-6)-β-D-glucopyranoside (1) and 6″-O-acetylisoorientin (2) on the basis of their spectroscopic and physicochemical properties.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Flavones
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Gentianaceae / chemistry
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Glucosides
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Stereoisomerism
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Xanthones / chemistry
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Xanthones / isolation & purification*
Substances
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6''-O-acetylisoorientin
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Drugs, Chinese Herbal
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Flavones
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Glucosides
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Glycosides
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Xanthones
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comastomaside A