【摘要】 从白叶香茶菜Isodonleucophyllus (Dunn)Kudo地上部分的丙酮提取物中 ,分离得到 1个新的紫罗兰酮类化合物和 6个黄酮类化合物 ,经IR ,UV ,MS ,NMR波谱数据分析 ,其结构分别确定为 :13-羧基布卢姆醇C (1) ,5 ,7,3′ ,4′ -四甲氧基黄酮 (2 ) ,线蓟素 (3) ,5 -羟基 - 6 ,7,3′ ,4′ -四甲氧基黄酮 (4) ,3′ -羟基 - 5 ,7,8,4′ -四甲氧基黄酮 (5 ) ,异甜橙素 (6 )和异槲皮素 (7)。其中 ,化合物 2 - 7均为首次从该植物中得到。更多还原

【Abstract】 A new ionone derivative and six known flavonoids were isolated from the aerial parts of Isodon leucophyllus (Dunn) Kudo. Their structures were respectively elucidated as 13-carboxy-blumenol C (1), 5,7,3′,4′-tetramethoxyflavone (2), cirsiliol (3),5-hydroxy-6,7,3′,4′-tetramethoxyflavone (4),3′-hydroxy-5,7,8,4′-tetramethoxyflavone (5), isosinensetin (6) and isoquercetrin (7),based on their spectra analysis.All of the six flavonoids were reported firstly from this plant.更多还原