Two new biologically active triterpenoidal saponins acylated with salicylic acid from Albizia adianthifolia

Mohamed Haddad, Tomofumi Miyamoto, Véronique Laurens, Marie Aleth Lacaille-Dubois

研究成果: Contribution to journalArticle査読

75 被引用数 (Scopus)

抄録

Two new oleanane-type triterpene saponins, adianthifoliosides A (1) and B (2), were isolated from a 95% ethanolic extract of roots of Albizia adianthifolia. Their structures were elucidated mainly by using a combination of 600 MHz 1D and 2D NMR techniques (COSY, NOESY, TOCSY, HSQC, and HMBC) and by FABMS and HRESIMS. Compounds 1 and 2 were characterized as glycosides of acacic acid acylated by an o-hydroxybenzoyl unit. The crude saponin mixture (CSM), compounds 1 and 2 together with 3 and 4 (prosapogenins obtained from the mild alkaline hydrolysate of the CSM), were evaluated for immunomodulatory activity on the Jurkat T cell line and for hemolytic property against sheep erythrocytes. Compound 2 and, to a lesser extent, 1 and 3 were found to exhibit a dose-dependent immunomodulatory effect in the concentration range 10-2-10 μM, whereas 4 showed a lymphoproliferative activity in the same concentration range. Among the compounds tested, only 1 and 2 were found to be hemolytic.

本文言語英語
ページ(範囲)372-377
ページ数6
ジャーナルJournal of Natural Products
66
3
DOI
出版ステータス出版済み - 3 1 2003

All Science Journal Classification (ASJC) codes

  • 分析化学
  • 分子医療
  • 薬理学
  • 薬科学
  • 創薬
  • 補完代替医療
  • 有機化学

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