A New Furanoxanthone from the Root Bark of Mesua ferrea

One new xanthone, mesuaferrin C (1), was isolated from the root bark of Mesua ferrea. Two other known xanthones which are macluraxanthone (2) and caloxanthone C (3), along with three triterpenoids, β-sitosterol (4), friedelin (5) and betulinic acid (6) were isolated as well. The structures of these compounds were determined by 1D and 2D NMR and MS techniques.