苦荞麦种子的化学成分

目的对苦荞麦〔Fagopyrum tataricum(L.)Gaertn.〕的种子中的化学成分进行研究。方法采用硅胶柱色谱等方法进行分离纯化,根据理化性质和光谱数据进行结构鉴定。结果分离得到11个化合物,分别鉴定为乌苏酸(ursolic acid,1)、山柰酚(kaempferol,2)、槲皮素(quercetin,3)、大黄素(emodin,4)、山柰酚-3-O-芸香糖苷(kaempferol-3-O-rutinoside,5)、芦丁(rutin,6)、3′,5′-二甲氧基-4′-O-β-D-吡喃葡萄糖基桂皮酸(3′,5′-dimethoxy-4′-O-β-D-glucopyranosyl-cinnamic-acid,7)、β-谷甾醇(β-sitosterol,8)、胡萝卜苷(daucosterol,9)、蔗糖(sucrose,10)、果糖(fructose,11)。结论化合物7是从荞麦属中首次分离得到,化合物1是从该植物中首次分离得到。

Chemical constituents from the seeds of Fagopyrum tataricum (L.) Gaertn.

Objective To study the chemical constituents of Fagopyrum tataricum (L.) Gaertn. Methods The compounds were isolated by chromatography on silica gel columns and identified by their physical-chemical properties and spectral analysis. Results Eleven compounds were obtained and identified as ursolic acid(1), kaempferol(2), quercetin(3), emodin(4), kaempferol-3-O-rutinoside(5), rutin(6), 3′，5′-dimethoxy-4′-O-β-D-glucopyranosyl-cinnamic acid(7), β-sitosterol(8), daucosterol(9), sucrose(10), fructose(11), respectively. Conclusions Compound 7 is isolated from Fagopyrum genus for the first time. Compound 1 is isolated from this plant for the first time.