Alexandroside I, a new cycloartane triterpene glycoside was isolated from Astragalus alexandrinus. Its structure was established as 3-O-beta-D-glucopyranosyl-9 beta,19-cyclolanost-3 beta,6 alpha,16 beta,24(R),25 pentaol on the basis of spectroscopic and chemical methods. Four known glycosides, astraversianins VI, X, XIV and XV, were also isolated.
Cycloartane triterpene glycosides from Astragalus alexandrinus / F. Orsini, L. Verotta, L. Barboni, N.A. El-Sebakhy, A.M. Asaad, R.M. Abdallah, S.M. Toaima. - In: PHYTOCHEMISTRY. - ISSN 0031-9422. - 35:3(1994), pp. 745-749.
Cycloartane triterpene glycosides from Astragalus alexandrinus
F. OrsiniPrimo
;L. VerottaSecondo
;
1994
Abstract
Alexandroside I, a new cycloartane triterpene glycoside was isolated from Astragalus alexandrinus. Its structure was established as 3-O-beta-D-glucopyranosyl-9 beta,19-cyclolanost-3 beta,6 alpha,16 beta,24(R),25 pentaol on the basis of spectroscopic and chemical methods. Four known glycosides, astraversianins VI, X, XIV and XV, were also isolated.
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