Prenylated biflavonoids from the green branches of Garcinia dulcis

Abstract The green branches extract of Garcinia dulcis was studied in the search for biflavonoids. Two new prenylated biflavonoids, named dulcisbiflavonoid B ( 1 ) and dulcisbiflavonoid C ( 2 ), along with 6 previously reported biflavonoids and flavonoids were isolated from the acetone extract of the green branches of G. dulcis . The structures of the isolates were determined on the basis of spectroscopic analysis and the data was compared with those previously reported. Antimicrobial activities of some isolated compounds were evaluated.