Alkaloids of Evodia alata F. Muell

Abstract

From the bark of Evodia alata F. Muell. the known alkaloids, evoxanthine, melicopidine, and kokusaginine have been isolated. The leaves contain evoxanthine and two new alkaloids. These are 2,3,4-trimethoxy-10-methylacridone (I, R=CH₃) and a furoquinoline a kaloid, evolatine. Evolatine is shown by degradation to be 7-(2',3'-dihydroxy-3'-methylbutoxy)-6-methoxydictamnine (V).