来自硬骨草的三萜皂苷。

Triterpenoid saponins from Spergularia ramosa.

作者信息

De Tommasi N, Piacente S, Gacs-Baitz E, De Simone F, Pizza C, Aquino R

机构信息

Central Research Institute of Chemistry, Hungarian Academy of Sciences, Budapest, Hungary.

出版信息

J Nat Prod. 1998 Mar;61(3):323-7. doi: 10.1021/np970398l.

DOI:10.1021/np970398l

PMID:9544562

Abstract

Six new oleanene glycosides were isolated from the MeOH extract of the aerial parts of Spergularia ramosa. They possess gypsogenin or quillaic acid as the aglycons. The disaccharide moiety linked to C-3 of the aglycons is made up of galactose (or glucose) and glucuronic acid (or glucose); the pentasaccharide moiety linked to C-28 is made up of glucose (or galactose), xylose, rhamnose, fucose, and arabinose. Their structures were elucidated by 1D and 2D NMR experiments including 1H-1H (DQF-COSY, 1D TOCSY, 2D HOHAHA, ROESY) and 1H-13C (HSQC, HMBC) spectroscopy.

摘要

从硬叶漆姑地上部分的甲醇提取物中分离出六种新的齐墩果烷糖苷。它们以绞股蓝皂苷元或奎来酸为苷元。连接在苷元C-3位的二糖部分由半乳糖（或葡萄糖）和葡萄糖醛酸（或葡萄糖）组成；连接在C-28位的五糖部分由葡萄糖（或半乳糖）、木糖、鼠李糖、岩藻糖和阿拉伯糖组成。通过一维和二维核磁共振实验（包括1H-1H（DQF-COSY、一维TOCSY、二维HOHAHA、ROESY）和1H-13C（HSQC、HMBC）光谱）阐明了它们的结构。