Studies on the Constituents of Sophora flavescens AIT. III

Two flavanones, kushenol E (I) and kushenol F (II), one flavonol, kushenol G (III), and two flavanonol, kushenol H (IV) and kushenol I (V) were isolated from the dry roots of Sophora flavescens AIT. (Leguminosae). Their structures were elucidated on the basis of spectral data especially 1H-nuclear magnetic resonance spectra and 13C-nuclear magnetic resonance spectra. Kushenol F (II) having a lavandulyl group at C-6 was first isolated from this source.