狭叶鸦葱化学成分的研究

Chemical constituents of whole plant of Scorzonera radiata Fisch

目的研究狭叶鸦葱的化学成分。方法采用大孔树脂、硅胶、ODS柱色谱进行分离纯化,经波谱分析并结合理化数据鉴定结构。结果分离得到了6个化合物,分别鉴定为zaluzanin C（1）、glucozaluzanin C（2）、11β,13-dihydrozaluzanin C（3）、5,7,3′,4′-四羟基黄酮8-β-D-葡萄糖碳苷（4）、5,7,3′,4′-四羟基黄酮6-β-D-葡萄糖碳苷（5）;5,7,4′-三羟基黄酮6-[β-D-木糖-（1→2）]-β-D-葡萄糖碳苷（6）。结论化合物1~6均为首次从狭叶鸦葱中得到。

Aim To isolate and elucidate the chemical constituents of the whole plant of Scorzonera radiata Fisch.Methods Solvent extraction and column chromatography were used to isolate the sesquiterpenoids,and physico-chemical constants and spectroscopic analysis were employed for the structural elucidation.Results Six compounds were isolated,and they were elucidated as zaluzanin C（1）,glucozaluzanin C（2）,11β,13-dihydrozaluzanin C（3）,5,7,3′,4′-tetrahydroxyflavone 8-β-D-glucopyranoside（4）,5,7,3′,4′-tetrahydroxyflavone 6-β-D-glucopyranoside（5）,5,7,4′-trihydroxyflavone 6-β-D-xylofuranosyl-（1→2）-β-D-glucopyranoside（6）.Conclusion Compounds 1-6 are isolated from Scorzonera radiata Fisch.for the first time.