Abstract
Six new acylated flavone C-glycosides, 2''-O-(2'''-methylbutyryl)isoswertisin (1), 3''-O-(2'"-methylbutyryl)isoswertisin (2), 2''-O-(2'"-methylbutyryl)vitexin (3), 2''-O-(2'"-methylbutyryl)orientin (4), 2''-O-(3'",4'"-dimethoxybenzoyl)vitexin (5), and 2''-O-(3'",4'"-dimethoxybenzoyl)orientin (6), and the known flavone C-glycoside, isoswertisin, were isolated from the flowers of Trollius ledebouri. The structures of 1-6 were elucidated by spectroscopic methods.
MeSH terms
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Acetylation
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Flavonoids / chemistry
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Flavonoids / isolation & purification*
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Flowers / chemistry
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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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Plants, Medicinal / chemistry*
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Ranunculaceae / chemistry*
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Vanillic Acid / analogs & derivatives*
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Vanillic Acid / chemistry
Substances
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Drugs, Chinese Herbal
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Flavonoids
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Glycosides
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veratric acid
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Vanillic Acid