【摘要】 目的:研究巴西甘薯叶的化学成分。方法:巴西甘薯叶乙醇提取物经石油醚、乙酸乙酯、正丁醇萃取,其中乙酸乙酯、正丁醇萃取部位用硅胶柱色谱、Sephadex LH-20凝胶柱色谱等方法,分离得到4个化合物,经理化性质和波谱数据鉴定结构。结果:从巴西甘薯叶中分离鉴定4个化合物,分别为枸橼苦素(1)、咖啡酸(2)、3,4-二咖啡酰基奎宁酸(3)、1,2,3,4-四氢-β-咔啉-3-羧酸(4)。结论:化合物1~4均为首次从该植物中分离得到。更多还原

【Abstract】 Objective: To investigate the chemical constituents of Ipomoea batatas .Methods:Silica gel column chromatography and Sephadex LH-20 were used to separate and purify the compounds from the EtOAc and n-BuOH soluble fraction of ethanol extracts.The chemical structures were elucidated on the basis of physic-chemical properties and spectral data.Results:Four compounds were isolated and identify as citrusin C(1),caffeicacid(2),3,4-di-O-caffeoylquinic acid(3),1,2,3,4-tetrahydro-β-carboline-3-carboylic acid(4).Conclusion:Compounds 1~4 are isolated for the first time from I.batatas.更多还原