Triterpenoid saponins from Cylicodiscus gabunensis

被引：14

作者：

Tene, Mathieu ^{[2
]}

Chabert, Philippe ^{[1
]}

Note, Olivier ^{[1
]}

Kenla, Timothee Julbelin Nwemeguela ^{[2
]}

Tane, Pierre ^{[2
]}

Lobstein, Annelise ^{[1
]}

机构：

[1] Univ Strasbourg, Fac Pharm, Lab Innovat Therapeut, CNRS,UMR 7200, F-67401 Illkirch Graffenstaden, France

[2] Univ Dschang, Dept Chem, Dschang, Cameroon

来源：

PHYTOCHEMISTRY LETTERS | 2011年 / 4卷 / 02期

关键词：

Cylicodiscus gabunensis; Mimosaceae; Triterpenoid saponin; Gabunoside; NMR; C-13; NMR-SPECTRA; GLYCOSIDES;

D O I：

10.1016/j.phytol.2010.10.004

中图分类号：

Q94 [植物学];

学科分类号：

071001 [植物学];

摘要：

Gabunoside (1), a new oleanane-type triterpene saponin determined as 3-O-[beta-L-arabinopyranosyl-(1 -> 2)-alpha-L-arabinopyranosyl-(1 -> 3)-beta-D-glucopyranosyl] maslinic acid-28-alpha-L-rhamnopyranosyl ester, together with the known cylicodiscoside (2), and 3-O-[alpha-L-arabinopyranosyl-(1 -> 3)-beta-D-glucopyranosyl] cylicodiscic acid (3) were isolated from the stem bark of Cylicodiscus gabunensis. After previous isolation of cyclodione from a Cameroonian plant, new investigations are performed on the more polar fractions of this species. Their structures were established by direct interpretation of their spectral data, mainly HRESIMS, 1D NMR (H-1, C-13 NMR, DEPT) and 2D NMR (COSY, NOESY, HSQC and HMBC), and by comparison with the literature. The structure of the trisaccharide moiety of cylicodiscoside has been revised. (C) 2010 Phytochemical Society of Europe. Published by Elsevier B. V. All rights reserved.

引用

页码：89 / 92

页数：4

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