抄録
Three dibenzoylmethanes were isolated from licorice of Xinjiang origin (botanically assigned to Glycyrrhiza inflata), and their structures were elucidated spectroscopically as 1-(2, 4-dihydroxy-5-prenylphenyl)-3-(4-hydroxyphenyl)-1, 3-propanedione (I), 1-(2, 4-dihydroxy-5-prenylphenyl)-3-(4-hydroxy-3-prenylphenyl)-1, 3-propanedione (II) and 1-(2, 4-dihydroxy-5-prenylphenyl)-3-(2, 2-dimethyl-2H-1-benzopyren-6-yl)-1, 3-propanedione (III). The latter two constituents were new natural products, and were named glycyrdiones A and B, respectively.
