椭圆线柱苣苔化学成分研究

Chemical constituents from Rhynchotechum ellipticum

采用各种色谱法分离,运用多种波谱技术鉴定结构。从椭圆线柱苣苔Rhynchotechum ellipticum甲醇提取物中分离得到6个化合物:β-谷甾醇(1),熊果酸(2),豆甾醇(3),齐墩果烷-3-O-β-D-葡萄糖苷(4),β-胡萝卜苷(5),正十八烷酸(6)。化合物1～6为首次从该属植物中分离得到。

The column chromatographic techniques were applied to isolate the constituents. The spectroscopic methods were used to identify the structures. Six compounds were isolated from the methyl hydroxide extract of Rhynchotechum el- lipticumrbus, whose structures were elucidated asβ-sitosterol （ 1 ）, ursolic acid （2）, stigmasterol （3） , 3-hydroxy-12- oleanane-3-O-β-D-glucopyranoside （4）, β-daucosterol （5）, octadecanoic acid （6）. Compounds 1-6 were isolated for the first time from Rhynchotechum genus.