Studies on the Constituents of Sophora flavescens AIT. V

Abstract

A new benzoquinone, kushequinone A (I), a new flavanonol, kushenol N (II), and a new isoflavone glycoside, kushenol O (III), 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 and 13C nuclear magnetic resonance. A benzoquinone derivative was isolated for the first time from Sophora flavescens AIT.