春根藤化学成分的研究(Ⅱ)

Chemical Constituents from Alyxia sinensis (Ⅱ)

目的 :探讨春根藤的化学成分。方法 :柱色谱分离 ,波谱及单晶X衍射分析鉴定结构。结果 :分离鉴定了 8个化合物 ,为bauerenylacetate(18) ,东莨菪素 (19) ,liriodendrin(2 0 ) ,松脂醇 2 氧 β D 葡萄糖苷 (2 1) ,胡萝卜苷 (2 2 ) ,白瑞素 (2 3) ,七叶素 (2 4)和七叶苷 (2 5 )。结论 :8个化合物均系首次从该植物中分得 ,化合物 2 0 ,2 1,2 3～ 2 5系首次从该属植物中分得 ,bauerenylacetate为新的天然产物。

Objective:To demonstrate the chemical constituents of Alyxia sinensis .Method:The constituents were isolated by column chromatography and identified by advanced physical and spectral analysis.Result:Eight compounds have been isolated and elucidated as bauereny acetate(18), scopletin(19), liriodendrin(20), pinoresinol-di- O -β- D -glucopyranoside(21), daucosterol(22), flaxetin(23), esculin(24), aseculin(25).Conclusion:These compounds were found from the plant for the first time, and compound 20,21,23～25 were found from Alyxiae genis for the first time, and compound 18 is firstly been isolated from natural source.