Abstract
Two new biflavonone compounds, sikokianin D (1) and sikokianin E (2), were isolated from the capitulum of Coreopsis tinctoria. The structures of these compounds were elucidated by spectroscopic techniques including NMR, HRESIMS and circular dichroism (CD).
Keywords:
Compositae; Coreopsis tinctoria; biflavonones; chemical constituents.
MeSH terms
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Biflavonoids / chemistry
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Biflavonoids / isolation & purification*
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Chromatography, High Pressure Liquid
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Coreopsis / chemistry*
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
Substances
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Biflavonoids
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Drugs, Chinese Herbal
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sikokianin D
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sikokianin E