药食两用植物刺梨的化学成分研究

Chemical constituents from medical and edible plants of Rosa roxburghii

综合应用天然产物化学分离、纯化技术从药食两用植物刺梨中分离得到13个化合物,结合各单体化合物的理化性质和光谱数据鉴定其结构。依次为2-oxo-pomolic acid（1）,1-β-羟基蔷薇酸（2）,蔷薇酸（3）,arjunic acid（4）,委陵菜酸（5）,刺梨苷（6）,野蔷薇苷（7）,arjunetin（8）,2α,3α,19α-trihydroxy-olean-12-en-28-oic acid 28-O-β-D-glucopyranoside（9）,2α,3α,19α,24-tetrahydroxyolean-12-en-28-oic-acid 28-O-β-D-glucopyranosyl ester（10）,焦性没食子酸（11）,β-胡萝卜苷（12）,1,2-癸二醇（13）。化合物9,10为首次从蔷薇科植物中分离得到,化合物1,4,5,9-11,13为首次从该植物中分离得到。

Rosa roxburghii,a kind of the medical and edible plants belonging to the Rosaceae family,is widely distributed in the southwest districts of China,especially Guizhou province. Now,by reason of the extensive bioactivities,the plant is widely used in the field of food,health product,drug,and so on. In the course of our continuing search for the bioactive constituents,thirteen compounds were isolated from R. roxburghii,and their structures were determined on the basis of physicochemical property,spectroscopic data and comparison with the literatures,as 2-oxo pomolic acid（ 1）,1β-hydroxyeuscaphic acid（ 2）,euscaphic acid（ 3）,arjunic acid（ 4）,tormentic acid（ 5）,kaiiichigeside F1（ 6）,rosamultin（ 7）,arjunetin（ 8）,2ɑ,3ɑ,19ɑ-trihydroxy-olean-12-en-28-oic acid 28-O-β-D-glucopyranoside（ 9）,2α,3α,19α,24-tetrahydroxyolean-12-en-28-oic-acid 28-O-β-D-glucopyranosyl ester（ 10）,pyrogallic acid（ 11）,daucosterol（ 12）,and 1,2-decanediol（ 13）. Compounds 9 and 10 were firstly obtained from Rosaceae family,and compounds 1,4,5,9-11,13 were isolated from this plant for the first time.