Abstract A new constituent characterized as 8-acetyl-3, 4-dihydroxy-5, 7-dimethoxy-2, 2- dimethylchroman has been isolated together with alloevodionol-7-methyl ether, 4-methoxy-1- methyl-2 (1H) quinolinone, evolitrine, isoevodionol and its methyl ether from the aerial parts of Euodia lunu-ankenda. Its structure was confirmed by its transformation to alloevodionol-7- methyl ether. 4-Methoxy-1-methyl-2 (1H) quinolinone and its isomer were synthesized by ...