【摘要】 从藏药臭蚤草的95%甲醇提取物中分离得到了2个二萜苷类化合物,采用IR,MS,1H NMR,13C NMR,ESI及HR-ESI等方法鉴定其结构分别为2-O-(2-O-Isovaleryl-β-D-glucopyranosyl)atractyligenin(1)和2-O-[2-O-Isovaleryl-3-β-D-apiofuranosyl-(1→3)-β-D-glucopyranosyl]atractyligenin(2),其中化合物2为新化合物,化合物1为首次从该属植物中分离得到.更多还原

【Abstract】 Pulicaria insignis Drumm.ex Dunn(commonly named Ming5chen5serpo) is a medicinal herb used to treat common diseases such as fever,pain and cough by Tibetan in China.Despite of the widespread medicinal use in Tibetan area,there were no phytochemical researches of diterpene glycoside on it yet,thus we investigated the chemical consitituents variety of it for the sustainable utilization.In our investigation,two diterpene glycosides were obtained with chromatography techniques.Their structures were identified as 2-O-(2-O-isovaleryl-β-D-glucopyranosyl) atractyligenin(1) and 2-O-[2-O-isovaleryl-3-β-D-apiosyl-β-Dapiofuranosyl-(1→3)-β-Dglucopyranosyl] atractyligenin(2) by means of 1H NMR,13C NMR,DEPT,2D NMR,ESI-MS and HR-ESI-MS,respectively.Among them,compound 2 was a new compound,compound 1 was firstly isolated from this plant.更多还原