• Natural Product Sciences
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• 제11권4호
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• pp.196-198
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• 2005

Four ursane type triterpenes have been isolated from the methanolic extract of the aerial parts of Agrimonia pilosa Ledeb. (Rosaceae) through repeated silica gel and reverse-phase C-18 column chromatography. Their chemical structures were elucidated as ursolic acid (1), pomolic acid (2), tormentic acid (3), and corosolic acid (4) on the basis of their MS, $^1H-$, and $^{13}C-NMR$ spectral data. Compounds 2 and 4 were isolated from the genes of Agrimonia for the first time.