Studies on flavonoid constituents of Caragana intermediia

AimTo study the chemical constituents of Caragana intermedia. MethodsThe compounds were separated by chromatography methods, their structures were identified by spectral analysis. ResultsTen compounds were isolated and identified as 5,7,4′-trihydroxy-3,3′-dimethoxyflavone(1), 3,5,7,8,4′-pentahydroxy-3′-methoxyflavone(2), quercetin(3), limocitrin(4), 5,7,3′,4′-tetrahydroxy-3-methoxyflavone(5), 7,3′,5′-trihydroxyflavanone(6), 5,7,3′,4′-tetrahydroxy-3,8-dimethoxyflavone(7), butein(8), liquiritigenin(9) and 5,7,4′-trihydroxy-3,8-dimethoxyflavone(10). ConclusionCompound 6 is a new compound and the others were obtained from this plant for the first time.