椿叶的化学成分研究

Studies on chemical constituents of Toona sinensis

目的 寻找楝科中的杀虫及药用活性成分。方法 分离鉴定香椿 Toona sinensis叶的乙醇提取物中的化合物。结果 从香椿叶的乙醇提取物中分离得到 6个化合物 ,经过波谱分析分别被鉴定为 6 ,7,8,2′-四甲氧基 - 5 ,6′-二羟基黄酮 ( ) ,5 ,7-二羟基 - 8-甲氧基黄酮 ( ) ,山柰酚 ( ) ,3-羟基 - 5 ,6 -环氧 - 7- m egastigmen- 9-酮 ( ) ,没食子酸乙酯 ( ) ,东莨菪素 ( )。结论 化合物

Object To proceed our continual search of insecticides and potentially useful pharmaceutics in plants of the Meliaceae family Methods Chemical constituents in the ethanolic extract of the leaves of Toona sinensis (A Juss ) Roem were separated and identified Results 6 compounds were isolated and identified as: 6, 7, 8, 2′ tetramethoxy 5, 6′ dihydroxy flavone (Ⅰ); 5, 7 dihydroxy 8 methoxy flavone (Ⅱ); kaempferol (Ⅲ); 3 hydroxy 5, 6 epoxy 7 megastigmen 9 one (Ⅳ), ethyl gallate (Ⅴ) and scopoletin (Ⅵ) by spectral methods Conclusion Compound Ⅳ was obtained from Toona Roem. for the first time