Two new chromenes named, leptonol and methylleptol A, along with four known compounds, alloevodione, 7, 4-dihydroxy-3, 5, 3'-trimethoxyflavone, 3, 7-dimethylkaempferol and clovandiol, have been isolated from Evodia lepta. Their structures were elucidated by spectroscopic analysis and chemical techniques. (C) 1998 Elsevier Science Ltd. All rights reserved.