Four novel cycloartane glycosides from Astragalus oleifolius
Four novel cycloartane glycosides from Astragalus oleifolius
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DOI：
10.1021/np9604184
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发表时间：
1996-11-01
影响因子：
5.1
通讯作者：
Ruegger, H
中科院分区：
文献类型：
--
作者：
Calis, I;Zor, M;Ruegger, H
Four novel cycloartane-type triterpene glycosides, macrophyllosaponins A-D (1-4) were isolated from the roots of Astragalus oleifolius. By means of chemical (acetylation, alkaline hydrolysis) and spectroscopic methods (IR, 1D- and 2D-NMR, FABMS), their structures were established as 3-O-alpha-L-rhamnopyranosyl-24-O-(4 ''-O-acetyl)-beta-D-xylopyranosyl-1 alpha,3 beta,7 beta,24(S),25-pentahydroxycycloartane (1), 3-O-alpha-L-rhamnopyranosyl-24-O-beta-D-xylopyranosyl-1 alpha,3 beta,7 beta,24(S),25-pentahydroxycycloartane (2), 3-O-alpha-L-rhamnopyranosyl-25-O-beta-D-glucoyranosyl-1 alpha,3 beta,7 beta,24(S),25-pentahydroxycycloartane (3), and 3-O-alpha-L-rhamnopyranosyl-24-O-(2-O-beta-D-xylopyranosyl)-beta-D-xylopyranosyl-1 alpha,3 beta,7 beta,24(S),25-pentahydroxycycloartane (4).
