The leaves of Comptonella microcarpa have yielded one alkaloid, dictamnine,
and four known polyoxygenated flavonoids, meliternatin, 3,5,8-trimethoxy-6
,7-3',4'-dimethylenedioxyflavone, 7-(3-methylbut-2-enyloxy)-3,5,8-trimethox
y-3',4'-methylenedioxyflavone (3), 7-hydroxy-3,5,8-trimethoxy-3',4'methylen
edioxyflavone. In addition, two new flavonoids were found whose structures
were established on the basis of their spectral data as 7-hydroxy-3,5,6,8-t
etramethoxy-3',4'-methylenedioxyflavone (1) and 7-(3-methylbut-2-enyloxy)-3
,5,6,8-tetramethoxy-3',4'-methylenedioxyflavone (2).