Zhongguo Zhongyao Zazhi 2007-Aug
[Study on triterpenes of Microtropis tiflora].
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OBJECTIVE
To study the chemical constituents of Microtropis triflora.
METHODS
The compounds were isolated by chromatography on silica gel and Sephadex LH-20. There structures were elucidatedby by chemical methods and spectral analysis.
RESULTS
Five triterpenoids were isolated and elucidated as friedelin (1), 3-oxo-28-friedelanoic acid (2), 29-hydroxy-3-friedelanone (3), salaspermic acid (4), orthosphenic acid (5).
CONCLUSIONS
Compounds 1-5 are all isolated from M. triflora for the first time.
