苦荞麦种子的化学成分

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

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。

Objective To study chemical constituents from the seeds 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-/3-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 t-test time. Compound 1 is isolated from this plant for the first time.