Two new cycloartane Saponins from the roots of Astragalus membranaceus
Two new cycloartane Saponins from the roots of Astragalus membranaceus
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DOI：
10.1248/cpb.56.105
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发表时间：
2008-01-01
影响因子：
1.7
通讯作者：
Kang, Sam Sik
中科院分区：
文献类型：
--
作者：
Kim, Ju Sun;Yean, Min-Hye;Kang, Sam Sik
从膜状黄芪Astragalus mamaceas(Fisch.)太棒了。(豆科)在韩国江原道种植。经化学和波谱确证，这些皂苷分别命名为黄芪皂苷元6，25-二-O-β-D-吡喃葡萄糖苷(A)和环花青素3-O-β-D-吡喃葡萄糖苷(1->；2)-β-D-木吡喃糖苷(B)。此外，还从同一材料中分离到12个已知的皂苷。虽然环阿魏皂苷元3-O-木糖苷和农杆菌皂苷I、II已从膜草不定根中分离得到，但这三种皂苷与短梗皂苷B和偶氮皂苷V甲酯一起为首次从该植物中分离得到。
Two new cycloartane-type triterpenoid saponins were isolated from the roots of Astragalus membranaceas (FISCH.) BGE. (Leguminosae) cultivated in Kangwon province, Korea. These saponins were named astramembranosides A and B and were established to be cycloastragenol 6,25-di-O-beta-D-glucopyranoside (astramembranoside A) and cyclocanthogenin 3-O-beta-D-glueopyranosyl(1 -> 2)-beta-D-xylopyranoside (astramembranoside B) on the basis of chemical and spectral evidence. In addition, 12 known saponins were also isolated from the same materials. Although cycloastragenol 3-O-xyloside and agroastragalosides I and II have already been isolated from A. membranaceus adventitious roots, these three saponins together with brachyoside B and azukisaponin V methyl ester were isolated for the first time from this plant.