【摘要】 目的:研究红绒毛羊蹄甲Bauhinia aurea的化学成分。方法:应用各种色谱技术进行分离纯化,用MS和NMR分析确定化合物结构。结果:从红绒毛羊蹄甲90%乙醇提取物的醋酸乙酯萃取部位中分离得到8个化合物,分别鉴定为异黄杞苷(1)、落新妇苷(2)、新落新妇苷(3)、异落新妇苷(4)、新异落新妇苷(5)、(2R,3S)-儿茶精6)、(2R,3R)-表儿茶精(7)和(2R,3R)-3-O-没食子酰表儿茶精(8)。结论:除化合物2,6和8外,其余5个化合物均属首次从该属植物中发现。更多还原

【Abstract】 Objective: To study the chemical constituents of Bauhinia aurea.Method: The compounds were isolated by column chromatography over silica gel,reversed-phase RP-18,and Sephadex LH-20.MS and NMR spectroscopic methods were used to determine structures of purified compounds.Result: Eight compounds were isolated from the ethyl acetate soluble fraction of the ethanolic extract and their structures were elucidated as isoengeletin(1),astilbin (2),neoastilbin(3),isoastilbin(4),neoisoastilbin(5),(+)-catechin(6),(-)-epicatechin(7) and(-)-epicatechin 3-O-gallate(8).Conclusion: Five compounds were isolated from this genus for the first time except for 2,6 and 8.更多还原