Flavonoid C-glycosides from the seeds of Hovenia dulcis Thunb.

北枳椇子中的黄酮碳苷类成分

Ten known flavonoid C-glycosides identified as 2′′-O-β-D-glucopyranosyl isovitexin(1),spinosin(2),6′′′-acetyl spinosin(3),6′′′-p-hydroxycinnamoyl-2′′O-β-D-glucopyranosyl isovitexin(4),6′′′-p-hydroxy-cinnamoyl spinosin(5),6′′′-(E)-feruloyl O-β-Dglucopyranosyl isovitexin(6),isospinosin(7),isovitexin(8),swertisin(9),swertiajaponin(10)were purified from the seeds of Hovenia dulcis Thunb.Their structures were confirmed by spectroscopic data analysis and comparison with previous literature.All compounds were obtained from H.dulcis for the first time.

本文对北枳椇种子的化学成分进行研究,从中分离得到10个黄酮碳苷类成分,通过波谱解析、理化常数及比对文献数据资料进行结构鉴定,分别为2′′-O-β-D-glucopyranosyl isovitexin(1),spinosin(2),6′′′-acetyl spinosin(3),6′′′-phydroxycinnamoyl-2′′O-β-D-glucopyranosyl isovitexin(4),6′′′-p-hydroxy-cinnamoyl spinosin(5),6′′′-(E)-feruloyl O-β-Dglucopyranosyl isovitexin(6),isospinosin(7),isovitexin(8),swertisin(9),swertiajaponin(10)。所有化合物均首次从该植物中分离得到。