Cycloascauloside b from Astragalus caucasicus |
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| Authors: | M. D. Alaniya N. Sh. Kavtaradze R. Faure L. Debrauwer |
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| Affiliation: | (1) I. G. Kutateladze Institute of Pharmaceutical Chemistry, Academy of Sciences of Georgia, Tbilisi, 0159, ul. Sarajishvili, 36, Republic of Georgia;(2) UMR 6009 Universite d’Aix-Marseille III, Avenue Escadrille Normandie Neimen, 13397 Marseille, cedex 20, France |
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| Abstract: | The structure of a new cycloartane glycoside isolated from leaves of Astragalus caucasicus Pall. (Leguminosae) was elucidated using chemical transformations and spectral data. Cycloascauloside B is 20R, 25-epoxy-24S-cycloartan-3β,6α,16β,24-tetraol 3-O-[α-L-rhamnopyranosyl-(1å2)]-β-D-glucopyranoside. |
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| Keywords: | triterpenes Astragalus PMR and 13C NMR spectroscopy DEPT cyclocephalogenin cycloascaulosides A and C |
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