Two new acylated tridesmosidic saponins from Astragalus armatus

Nabil Semmar, Tomofumi Miyamoto, Yassine Mrabet, Marie Aleth Lacaille-Dubois

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

Two new tridesmosidic glycosides of (3β,6α,16β,20R,24S)-20, 24epoxycycloartane-3,6,16,25-tetrol (=cycloastragenol), armatosides I and II (1 and 2, resp.), were isolated from the roots of Astragalus armatus (Fabaceae) as well as the known bidesmosidic glycosides of cycloastragenol, trigonoside II (3) and trojanoside H (4). Their structures were elucidated as (3β,6α, 16β,20R,24S)-3-O-(2,3-di-O-acetyl-β-D-xylopyranosyl)-20, 24-epoxy-25-O-β-D-glucopyranosyl-6-O-β-D-xylopyranosylcycloartane-3,6, 16,25-tetrol (2). These structures were established by extensive NMR and MS analyses and by comparison with literature data.

本文言語英語
ページ(範囲)870-876
ページ数7
ジャーナルHelvetica Chimica Acta
93
5
DOI
出版ステータス出版済み - 1 1 2010

All Science Journal Classification (ASJC) codes

  • 触媒
  • 生化学
  • 創薬
  • 物理化学および理論化学
  • 有機化学
  • 無機化学

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