金钱草中黄酮苷的分离与结构鉴定金钱草中黄酮苷的分离与结构鉴定

Isolation and structure identification of flavonol glycoside from Lysimachia christinae Hance.

摘要: 目的从金钱草中分离制备标准品。方法用硅胶柱色谱进行分离,通过理化方法及IR,UV,MS,¹HNMR,¹³CNMR,DEPT,HMQC,HMBC等光谱分析确定化合物结构。结果从金钱草中分离得到2个化合物,分别鉴定为鼠李酮酸γ-内酯(I)、山奈酚-3-O-α-L-鼠李糖(1→2)-β-D-木糖苷(II)。结论II为新化合物,命名为金钱草素,I为首次从该属植物中分离得到。

Abstract: AimTo isolate and prepare chemical standards. MethodsFlavonol glycoside and rhamnonic acid γ-lactone were isolated from whole plants of Lysimachia christinae Hance. with 95% ethanol and purified by silica gel column chromatography. UV, IR, MS, ¹HNMR, ¹³CNMR, DEPT, HMQC, HMBC were used for the structural identification. ResultsTwo compounds were obtained. They were identified as rhamnonic acid γ-lactone (I) and kaempferol-3-O-α-L-rhamnosyl (1→2)-β-D-xyloside (II). ConclusionCompound I was isolated from this genus for the first time. Compound II is a new compound named as lysimachiin.