中华抱茎蓼正丁醇部位化学成分的研究

摘要

目的 研究中华抱茎蓼Polygonum amplexicaule var.sinense的化学成分.方法 中华抱茎蓼乙醇提取物的正丁醇部位采用薄层色谱、正向硅胶柱、大孔树脂柱、葡聚糖凝胶柱、制备薄层、HPLC半制备柱进行分离纯化,通过理化性质和波谱数据鉴定所得化合物的结构.结果 从中分离得到10个化合物,分别鉴定为2-(氨甲基)-4-甲氧基-苯酚(1)、对羟基苯甲酸甲酯(2)、对羟基苯乙酸甲酯(3)、2-[2-(甲氨基)苯基]-4-噻唑甲酸甲酯(4)、对甲基苯乙醇(5)、岩白菜素(6)、熊果苷(7)、杜鹃醇-2-O-β-D-吡喃葡萄糖苷(8)、没食子酸正丁酯(9)、β-谷甾醇(10).结论 化合物1～8均为首次从该植物中分离得到.%AIM To study the chemical constituents from the Polygonum amplexicaule var.sinense.METHODS The n-butanol fraction of ethanol extract from P.amplexicaule var.sinense was isolated and purified by TLC,normal-phase silica,macroporous resin column,sephadex column,preparative TLC and semi-preparative HPLC column,then the structures of obtained compounds were identified by physicochemical properties and spectral data.RESULTS Ten compounds were identified as 2-(aminomethyl)-4-methoxy-phenol (1),p-methyl-hydroxybenzoate (2),p-methyl-hydroxyphenylacetate (3),2-[2-(methylamino) phenyl]-4-thiazolecarboxylic acid,methyl ester (4),p-methylphenylethanol (5),bergenin (6),arbutin (7),rhododendron-2-O-β-D-glucopyranoside (8),n-butyl gallate (9) and β-sitosterol (10).CONCLUSION Compounds 1-8 are isolated from this plant for the first time.