外来入侵植物假臭草的黄酮类成分研究

Identification of Flavonoids in Alien Invasive Plant Eupatorium catarium

从外来入侵植物假臭草的70%乙醇提取物的乙酸乙酯萃取物中分离得到5个黄酮化合物,利用波谱方法鉴定为5,6,7,4′-四甲氧基黄酮（1）,7-羟基-5,6,4′-三甲氧基黄酮（2）,4′-羟基-5,6,7-三甲氧基黄酮（3）,5,4′-二羟基-6,7-二甲氧基黄酮（4）,5,7,4′-三羟基-6-甲氧基黄酮（5）。化合物1-5均首次从该植物中分离得到。

Five flavonoids were isolated from Eupatorium catarium,a alien invasive plant.On the basis of spectral methods,their structures were identified as 5,6,7,4′-tetramethoxyflavone（1）,7-hydroxy-5,6,4′-trimethoxyflavone（2）,4′-hydroxy-5,6,7-trimethoxyflavone（3）,5,4′-dihydroxy-6,7-dimethoxyflavone（4） and 5,7,4′-trihydroxy-6-methoxyflavone（5）.All compounds were isolated from the plant for the first time.