Isolation and structural determination of urs 12-en-3 beta -acetyloxy extracted from Radix-Streptocauli
- Author:
Tam Thanh Pham
- Publication Type:Journal Article
- Keywords:
Traditional medicine
- MeSH:
Plants, Medicinal;
Medicine, Traditional
- From:Pharmaceutical Journal
1999;282(10):13-15
- CountryViet Nam
- Language:Vietnamese
-
Abstract:
From a polar fraction, obtained from alcoholic root extract of Streptocaulon juventas by fractionated precipitation and liquid-liquid extractions, 5 pure compounds (St3 - St7) were isolated by chromatographical methods besides two formerly reported compounds - lupeol acetate and lupeol. Of those, the structure of St3. was deduced to be urs-12-en-3-acetyloxy by their spectroscopic data compared to those of published data of related compounds. To the best of our knowledge, this is the first time this compounds are known as constituents of the plant and also of the genus Streptocaulon
