【摘要】 目的:对翻白草(Potentilla discolor Bunge)的黄酮类成分进行研究。方法:采用70%乙醇提取,利用硅胶、SephadexLH-20、ODS柱层析等方法分离化合物,根据理化性质及光谱技术鉴定结构。结果:分离并鉴定了9个黄酮类化合物,经光谱方法分别鉴定为槲皮素(1)、山柰酚(2)、槲皮素-3-O-α-L-吡喃鼠李糖苷(3)、槲皮素-3-O-β-D-葡萄糖苷(4)、槲皮素-3-O-α-D-阿拉伯糖苷(5)、芦丁(6)、槲皮素-3-O-β-D-葡萄糖醛酸苷(7)、山柰酚-3-O-β-D-葡萄糖醛酸苷(8)和槲皮素-3-O-β-D-半乳糖-7-O-β-D-葡萄糖苷(9)。结论:化合物4～7为首次从翻白草中分离得到的化合物,8、9为首次从委陵菜属植物中分离得到的化合物。更多还原

【Abstract】 AIM:To study the flavones from Potentilla discolor Bunge.METHODS:Extracted with 70% ethyl alcohol,the constituents were isolated by Chromatography of silica gel,Sephadex LH-20 and ODS and their structures were identified on the basis of the physical properties and spectral analysis.RESULTS:Nine flavanoids were isolated from Potentilla discolor Bunge and identified as quercetin(1),kaempferol(2),quercetin-3-O-α-L-rhamnpyranoside(3),quercetin-3-O-β-D-glucopyranoside(4),quercetin-3-O-α-D-arabinfuranoside(5),rutin(6),quercetin-3-O-β-D-glucuronide(7),kaempferol-3-O-β-D-glucuronide(8),quercetin3-O-β-D-galactoside-7-O-β-D-glucoside(9).CONCLUSION:Compounds 4-7 were obtained from this plant for the first time and compounds 8 and 9 were isolated from this genus for the first time.更多还原