Banfoxanthone, a new prenylated xanthone from the stem bark of Garcinia ovalifolia (Guttiferaceae).

A detailed chemical investigation of the secondary metabolites from the extract of the stem bark of Garcinia ovalifolia led to the isolation of one new prenylated xanthone named banfoxanthone and five known compounds, namely friedeline, canophyllal, ovalifoloneA, 3-methoxycheffouxanthone, endodesmiadol. Prenylated xanthones isolated from Garcinia ovalifolia and others species of genus Garcinia appear to be useful as chemotaxonomic markers in Garcinia.