目的:研究菊科植物大叶橐吾的化学成分。方法:采用硅胶柱色谱进行分离纯化,通过理化性质和波谱数据分析鉴定化合物结构。结果:分离得到8个化合物,分别鉴定为:山奈酚(1)、2,4′-二羟基-5-甲氧基查尔酮(2)、5-羟基-3,4′,7-三甲氧基黄酮醇(3)、isobutyl ester terephthalic acid(4)、4-hydroxybenzaldehyde(5)、mono(2-eth-ylhexyl)terephthalate(6)、羽扇豆醇(7)和β-谷甾醇(8)。结论:化合物1-7为首次从该植物中分离得到。
Objective:To study the chemical constituents of Ligularia macrophylla.Methods:Isolation and purification were carried out on repeated silica gel column chromatography.The structures of the compounds were identified by physico-chemical properties and spectral analyses.Results:Eight compounds were isolated and identified as kaempferol(1),2,4′-dihydroxy-5-methoxychalcone(2),5-hydroxy-3,4′,7-trimethoxyflavone(3),isobutyl ester terephthalic acid(4),4-hydroxybenzaldehyde(5),mono(2-ethylhexyl) terephthalate(6),lupeol(7),β-sitosterol(8).Conclusion:Compounds 1~7 are isolated from this plant for the first time.