茅膏菜化学成分的研究

Study on chemical constituents of Drosera peltata var. multisepala

采用各种色谱技术对茅膏菜的化学成分进行了研究,从乙醇提取物的乙酸乙酯和水部位分离得到11个化合物,并利用理化常数和波谱数据分别鉴定为:异柿萘醇酮-4-O-β-D-葡萄糖苷(1)、异柿萘醇酮(2)、表异柿萘醇酮(3)、矶松素(4)、茅膏醌(5)、茅膏醌-5-O-葡萄糖苷(6)、槲皮素(7)、山柰酚(8)、棉花皮素-8-O-葡萄糖苷(9)、3,3'-二甲氧基鞣花酸(10)、鞣花酸(11)。其中,化合物1为新化合物,化合物3,8,10,11为首次从该植物中分离得到。

Chemical investigatation of Drosera peltata var.multisepala led to the isolation of eleven compounds using various chromatographic techniques.The structures of these compounds were elucidated as isoshinanolone-4-O-β-D-glucoside(1),isoshinanolone(2),epi-isoshinanolone(3),plumbagin(4),droserone(5),droserone-5-O-glucoside(6),quercetin(7),kaempferol(8),gossypetin-8-O-glucoside(9),3,3'-dimethoxy ellagic acid(10),and ellagic acid(11) by their physicochemical properties and spectral data analysis.Compound 1 was a new compound.Compounds 3,8,10,and 11 were isolated from this plant for the first time.