关键词: 蔷薇科, 龙芽草属, 龙芽草, 豆甾二醇, 谷甾醇

Abstract: The 95% ethanol extract of the whole medicinal plants Agrimonia pliosa Ledeb was separated by silica gel column chromatography and thin layer chromatography to afford four compounds, which were identified as stigmast-5-ene-3β,7β-diol (1), stigmast-5-ene-3β,7α-diol (2), stigmastane-3β,6α-diol (3) and β-sitosterol (4) on the basis of spectroscopic analysis and comparison with the reported data. Compounds 1-3 were isolated from A. pliosa for the first time.