[Isolation and identification of gancaonin P-3'-methylether from the leaves of Glycyrrhiza uralensis Fisch].

Two flavonoids were isolated from the leaves of Glycyrrhiza uralensis Fisch (Licorice, Leguminosae). On the basis of physico-chemical properties and spectroscopy (UV, 1HNMR and MS), a new compound was elucidated as 3,5,7,4'-tetrahydroxy-3'-methoxy-6-isoprenyl flavone (gancaonin P-3'-methylether) and another known compound was identified as 8-C-prenyleriodictyol.