Four species of the genus Vernonia, endemic in Cuba, have been investigated on the presence of sesquiterpenic lactones. In addition to two derivatives of lupeol, scopoletin, genkwanin and velutin, total 15 sesquiterpenic lactones have been isolated, four of which are described for the first time.
属于古巴特有的4种
Vernonia属植物已经研究了其萜烯内酯的存在。除了两种鲁皮醇衍
生物外,还分离出了斯科普莱汀、根宽素和绒毛素等15种萜烯内酯,其中有4种是首次描述的。