Zhongguo Zhongyao Zazhi 2005-Dec
[Triterpenes from root of Rhaponticum uniflorum].
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OBJECTIVE
To study the chemical constituents of the root of Rhaponticum uniflorum.
METHODS
Separation and purification were performed on silica gel and Sephadex LH-20 column chromatography. Their structure were elucidated on the basis of physicochemical and spectral analysis.
RESULTS
Five triterpenoid compounds were isolated and identified as ursolic acid (1), 3-oxo-19alpha-hydroxyurs-12-en-28-oic acid (2), pomolic acid (3), arjunic acid (4) and tormentic acid (5), respectively.
CONCLUSIONS
Compounds 1 approximately 5 were isolated from the genus Rhaponticum for the first time.
