A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-(1 → 3)-β-D-xylopyra- nosyl-(1→4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-arabinopyra-nosyl ester, was isolated fro...A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-(1 → 3)-β-D-xylopyra- nosyl-(1→4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-arabinopyra-nosyl ester, was isolated from the roots of Platycodon grandiflorum, together with three known saponins, including platycodin D, deapio platycoside E and platycoside E. The structure of the new compound, named 16-oxo-platycodin D, was elucidated on the basis of spectroscopic data.展开更多
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
文摘A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-(1 → 3)-β-D-xylopyra- nosyl-(1→4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-arabinopyra-nosyl ester, was isolated from the roots of Platycodon grandiflorum, together with three known saponins, including platycodin D, deapio platycoside E and platycoside E. The structure of the new compound, named 16-oxo-platycodin D, was elucidated on the basis of spectroscopic data.
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。