C-glycosylflavones with acetyl substitution from Rumex acetosa L.
作者:Takeshi KATO、Yutaka MORITA
DOI:10.1248/cpb.38.2277
日期:——
Six flavone C-glycosides : 2", 6"-di-O-acetylisoorientin (1), 2", 6"-di-O-acetylorientin (2), 2"-O-acetylisoorientin (3), 2"-O-acetylorientin (4), isoorientin (5) and orientin (6) were identified from the aerial parts of Rumex acetosa L .(Polygonaceae), in addition to two flavonol O-glycosides : avicularin (7) and hyperin (8). Of these, 1-3 were new compounds and 4-7 were isolated for the first time from this species. The structures were established by ultraviolet, fast atom bombardment mass and nuclear magnetic resonance spectral data.
从蓼属植物 Rumex acetosa L 的气生部分鉴定出六种黄酮 C-糖苷:2", 6"-di-O-acetylisoorientin (1)、2", 6"-di-O-acetylorientin (2)、2"-O-acetylisoorientin (3)、2"-O-acetylorientin (4)、isoorientin (5) 和 orientin (6)。(蓼科植物)的气生部分中鉴定出了两种黄酮醇 O 型糖苷:avicularin(7)和 hyperin(8)。其中,1-3 是新化合物,4-7 是首次从该物种中分离出来。通过紫外线、快速原子轰击质谱和核磁共振光谱数据确定了这些化合物的结构。