Flavonoid glycosides and a bitter principle from Lomatogonium carinthiacum

Abstract Three flavone glycosides, including the novel 6-hydroxyluteolin 7- O -gentiobioside, and a bitter secoiridoid glycoside, swertiamarin, have been identified in the aerial parts of Lomatogonium carinthiacum . Four minor xanthone glycosides were also detected. Separations were made with droplet counter-current chromatography (DCCC) in combination with column chromatography. Structure elucidation was achieved by UV, 1 H and 13 C NMR, FDMS and D/CIMS spectra.