Cytotoxic prenylated flavones from Artocarpus champeden

Two new prenylated flavones, artoindonesianins A-2 (1) and A-3 (2), together with three known prenylated flavones, artonin B (3), heterophyllin (4) and cudraflavone C (5), have been isolated and identified from the chloroform extract of the heartwood of Artocarpus champeden. The structures of these compounds were determined on the basis of spectroscopic data, including UV, IR, 1-D and 2-D NMR, and mass spectra. The cytotoxic properties of the...