To study the chemical constituents from the leaves of Aglaia testicularis. The methanol extract was isolated and purified by silica gel, Sephadex LH-20 and preparative HPLC. Their chemical structures were elucidated by MS and spectral data (1H, 13C-NMR). Seven compounds were isolated from the leaves
Two new cyclopenta[b]benzofurans, aglaroxin A 1-O-acetate (2) and 3'-methoxyaglaroxin A 1-O-acetate (3), a new benzo[b]oxepine, 19,20-dehydroedulisone A (4), and five new cyclopenta[bc]benzopyrans, edulirin A (5), edulirin A 10-O-acetate (6), 19,20-dehydroedulirin A (7), isoedulirin A (8), and