来自刺阿干树种子外壳的三萜皂苷。

Triterpenoid saponins from the shells of Argania spinosa seeds.

作者信息

Alaoui Asma, Charrouf Zoubida, Soufiaoui Mohamed, Carbone Virginia, Malorni Antonio, Pizza Cosimo, Piacente Sonia

机构信息

Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, Faculté des Sciences, University of Rabat, B.P. 1041, RP Rabat, Morocco.

出版信息

J Agric Food Chem. 2002 Jul 31;50(16):4600-3. doi: 10.1021/jf0200117.

DOI:10.1021/jf0200117

PMID:12137482

Abstract

Two new oleanene saponins were isolated from the MeOH extract of the shell of Argania spinosa. They possess protobassic acid and 16alpha-protobassic acid as aglycons. The disaccharide moiety linked to C-3 of the aglycon is made up of two glucose units; the pentasaccharide moiety linked to C-28 is made up of arabinose, xylose, and three rhamnose units. Their structures were elucidated by 1D and 2D NMR experiments including (1)H-(1)H (DQF-COSY, 1D TOCSY, and 2D HOHAHA) and (1)H-(13)C (HSQC and HMBC) spectroscopy along with mass spectrometry.

摘要

从刺阿干树果壳的甲醇提取物中分离出两种新的齐墩果烷型皂苷。它们以原巴西酸和16α-原巴西酸为苷元。连接在苷元C-3位的二糖部分由两个葡萄糖单元组成；连接在C-28位的五糖部分由阿拉伯糖、木糖和三个鼠李糖单元组成。通过一维和二维核磁共振实验（包括(1)H-(1)H （双量子滤波相关谱、一维全相关谱和二维同核Hartmann-Hahn谱）和(1)H-(13)C （异核单量子相干谱和异核多键相关谱）光谱）以及质谱对它们的结构进行了阐明。