Abstract
Four new phenolic glycosides, beta-apiofuranosyl-(1-->2)-beta-glucopyranosides (1-4), along with the cycloartane triterpenes 20(R),25-epoxy-3beta,6alpha,16beta,24alpha-tetrahydroxycycloartane (5) and 20(R),24(S)-epoxy-3beta,6alpha,25-trihydroxycycloartan-16-one (6) were isolated from roots of Astragalus zahlbruckneri. The structure elucidation of all compounds was based on their (1)H and (13)C NMR spectral data including 1D-TOCSY, DQF-COSY, HSQC, and HMBC experiments.
MeSH terms
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Astragalus Plant / chemistry*
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Phenols / chemistry
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Plant Roots / chemistry
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Plants, Medicinal / chemistry
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Sapogenins / chemistry
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
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Turkey
Substances
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20,24-epoxy-3,6,25-trihydroxycycloartan-16-one
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20,25-epoxy-3,6,16,24-tetrahydroxycycloartane
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Glycosides
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Phenols
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Sapogenins
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Triterpenes
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cycloastragenol