Secondary metabolites from the roots of Astragalus zahlbruckneri.
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.
Calis
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Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, TR-06100 Ankara, Turkey. icalis@hacettepe.edu.tr
Gazar
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Piacente
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Pizza
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D027883:Astragalus Plant / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D012502:Sapogenins / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014421:Turkey
C438403:20,24-epoxy-3,6,25-trihydroxycycloartan-16-one; C438404:20,25-epoxy-3,6,16,24-tetrahydroxycycloartane; D006027:Glycosides; D010636:Phenols; D012502:Sapogenins; D014315:Triterpenes; C061014:cycloastragenol