从番龙眼茎皮中分离得到的一种新的三萜皂苷。

A new triterpenoid saponin from the stem bark of Pometia pinnata.

作者信息

Mohammad Faryal Vali, Ahmad Viqar Uddin, Noorwala Mushtaq, Lajis Nordin H J

机构信息

H.E.J Research Research Institue of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan.

出版信息

Nat Prod Commun. 2010 Feb;5(2):191-5.

PMID:20334125

Abstract

Phytochemical investigation of the stem bark of Pometia pinnata resulted in the isolation of a new triterpenoidal saponin. The structure of the new compound, pometin (1), was established as 3-O-[beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranosyl-(1 --> 3)-beta-D-glucopyranosyl]-oleanolic acid based on 1D and 2D-NMR analysis including COSY, 2D J-resolved, HMQC, HMBC correlations and chemical transformations.

摘要

对番龙眼茎皮进行植物化学研究，从中分离出一种新的三萜皂苷。基于一维和二维核磁共振分析（包括COSY、二维J-分解谱、HMQC、HMBC相关谱）以及化学转化，确定了新化合物番龙眼苷（1）的结构为3-O-[β-D-吡喃葡萄糖基-(1→2)-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃葡萄糖基]-齐墩果酸。