目的分离、鉴定桔梗[Platycodon grandiflorum(Jacq.)A.DC]根中的远志酸型皂苷类化学成分。方法采用乙醇提取、乙酸乙酯萃取,大孔树脂柱色谱、硅胶柱色谱及高效液相色谱等方法进行分离,得到3个化学成分,运用IR,MS,1H NMR和13C NMR等光...目的分离、鉴定桔梗[Platycodon grandiflorum(Jacq.)A.DC]根中的远志酸型皂苷类化学成分。方法采用乙醇提取、乙酸乙酯萃取,大孔树脂柱色谱、硅胶柱色谱及高效液相色谱等方法进行分离,得到3个化学成分,运用IR,MS,1H NMR和13C NMR等光谱法鉴定化合物的结构。结果分离鉴定了3种三萜皂苷:3-O--βD-lam inarib iosylpolygalac ic ac id(I),3-O-β-D-glucopyranosyl polygalac ic ac id(II)及polygalac in D(III)。结论化合物I是新化合物,II,III为已知化合物。化合物II为首次从该植物中分得,化合物I和II也是首次从桔梗中分离得到的单糖链糖苷。展开更多
Four constituents were isolated from Rhododendron micranthum Turcz . Their structures were identified ashyperin ,astragalin ,kaempferol ,and quercetin . Kaempferol wasisolated from the plantforthe firsttime . Hyperin ...Four constituents were isolated from Rhododendron micranthum Turcz . Their structures were identified ashyperin ,astragalin ,kaempferol ,and quercetin . Kaempferol wasisolated from the plantforthe firsttime . Hyperin wasthe main analgesic active constituent.展开更多
文摘目的分离、鉴定桔梗[Platycodon grandiflorum(Jacq.)A.DC]根中的远志酸型皂苷类化学成分。方法采用乙醇提取、乙酸乙酯萃取,大孔树脂柱色谱、硅胶柱色谱及高效液相色谱等方法进行分离,得到3个化学成分,运用IR,MS,1H NMR和13C NMR等光谱法鉴定化合物的结构。结果分离鉴定了3种三萜皂苷:3-O--βD-lam inarib iosylpolygalac ic ac id(I),3-O-β-D-glucopyranosyl polygalac ic ac id(II)及polygalac in D(III)。结论化合物I是新化合物,II,III为已知化合物。化合物II为首次从该植物中分得,化合物I和II也是首次从桔梗中分离得到的单糖链糖苷。
文摘Four constituents were isolated from Rhododendron micranthum Turcz . Their structures were identified ashyperin ,astragalin ,kaempferol ,and quercetin . Kaempferol wasisolated from the plantforthe firsttime . Hyperin wasthe main analgesic active constituent.
