Two new acylated flavone C-glycosides, 6''-O-(2'''-methylbutyryl)isoswertisin (1) and 6''-O-(2'''-methylbutyryl)isoswertiajaponin (2), together with four known acylated flavone C-glycosides, were isolated for the first time from the whole plants of Hemistepta lyrata (Compositae). Their structures
Traditionally, Hemistepta lyrata is consumed as a mountainous vegetable or a medicinal herb to treat inflammation, fever, hemorrhage, and hemorrhoids. In order to provide the scientific evidence of traditional uses of this plant, we identified and quantified thirteen active substances (caffeic acid,