SIX FLAVONOIDS FROM BURSERA LEPTOPHLOEOS

Article abstract of DOI:10.1016/S0031-9422(00)98007-5

From branches of Bursera leptophloeos five flavonoids were isolated: 8-(3"-hydroxy-3"-methylbutyl)-5,7,4'-trihydroxydihydroflavonol, 6",6"-dimethyldihydropyran (2",3":7,8)-5,4'-dihydroxydihydroflavonol, 8-(3"-hydroxy-3"-methylbutyl)-5,7,4'-trihydroxyflavonol, 6",6"-dimethyldihydropyran (2",3":7,8)-5,4'-dihydroxyflavonol, 8-(γ,γ-dimethylallyl)-5,7,4'-trihydroxyflavonol, and two new related compounds 8-(γ,γ-dimethylallyl)-5,7,4'-trihydroxydihydroflavonol and 5"-isopropenyldihydrofuran-(2",3":7,8)-5,4'-dihydroxydihydroflavonol.Key Word Index-Bursera leptophloeos; Rubiaceae; branch wood; prenylflavonoids; chalcone.