CHEMICAL STUDIES OF FLAVONOID COMPOUNDS FROM GLYCYRRHIZA URALENSIS FISCH

A new isoflavone glycoside,isoononin(isoformononetin-4-glucoside,Ⅰ) , togetherwith four flavones,liquiritin(Ⅱ),isoliquiritin(Ⅲ), liquiritigenin-7,4'-diglucoside(Ⅳ),andneoisoliquiritin(Ⅴ)have been isolated from Glycyrrhiza uralensis Fisch.Their structures were elucidatedby means of spectrometric analysis(UV,IR, NMR,and MS).