Abstract: One new compound,3,5,7,8-tetrahydroxyl flavone 4'-O-α-L-rhamnopyranoside named rhodiolatuntoside(2),along with 7 known compounds,herbacetin-8-methyl ether(1),quercetin(3),rutin(4),tyrosol(5),salidoside(6),gallic acid(7) and β-sitosterol(8),which were firstly isolated from Rhodiola atuntsueneis,was structurally elucidated based on the spectral and chemical data.

Key words: Crassulaceae, Rhodiola atuntsuensis, Rhodiolatuntoside

摘要： 从云南产德钦红景天Rhodiola atuntsuensis(Praeg.)Fu的根及根茎中首次分离得到8个化合物。根据各项光谱数据及化学反应鉴定其中一个新黄酮甙的结构为3，5，7，8-四羟基-黄酮4'-氧-α-L-鼠李糖吡喃甙，命名为德钦红景天甙(rhodiolatuntoside,2)，另外7个已知化合物分别是草质素-8-甲醚(herbacetin-8-methyl ether,1),槲皮素(quercetin,3),芦丁(rutin,4)，酪醇(tyrosol,5),红景天甙(salidroside,6),没食子酸(gallic acid,7)和β-谷甾醇( -sitosterol,8)。

关键词: 景天科, 德钦红景天, 德钦红景天甙