小果蔷薇化学成分的研究

Studies on chemical constituents of Rosa cymosa

目的：研究小果蔷薇Rosa cymosa Tratt．中的化学成分。方法：运用多种色谱方法对小果蔷薇中的化学成分进行分离，根据理化性质和波谱数据分析进行结构鉴定。结果：分离得到6个化合物，分别为β-谷甾醇（1），2α-羟基乌苏酸（2），蔷薇酸（3），胡萝卜苷（4），紫云英苷（5），翻白叶苷A（6）。结论：化合物1～6均为从小果蔷薇中首次分离得到。

Objective： To investigate the chemical constituents of Rosa cymosa. Methods： Multi-chromatographic methods were employed for the isolation and purification of Rosa cymosa. The structures were identified on the basis of chemical evidence and spectral data. Results：Six compounds were isolated and identified as β-sitosterol （1）, 2α-hydroxyursolic acid （2）, euscaphic acid （3）, daucosterol （4）, kacmferol-3-O-β-D-glucoside （5） , potengriffioside A （6）. Conclusion：Compounds 1 - 6 were all isolated from Rosa cymosa for the first time.