关键词: Compositae, Conyza blinii, Triterpenoidal saponins, Chemical constituents, Isolation and identification, Antiulcer, Antitumor

Abstract: Conyza blinii Lévl. (Compositae), commonly called Jin Long Dan Cao, is distributed in southwest districts of China. Its aerial parts are used in folk medicine for the treatment of chronic bronchitis, gastroenteritis and other inflammatory diseases. Preliminary pharmacological and clinical tests showed that the aerial parts of C. blinii possessed expectorant, antitussive, antiinflammatory and antibacterial effects. Although many other plants of Conyza have been studied phytochemically, there have been rare reports on the chemical constituents of C. blinii. Moreover, studies on the saponins of Conyza plants have not been observed until now. Therefore, we conducted a detailed phytochemical investigation and extensive bioassays on C. blinii.

Key words: Compositae, Conyza blinii, Triterpenoidal saponins, Chemical constituents, Isolation and identification, Antiulcer, Antitumor