Abstract
Four acridones were isolated from the leaves of Vepris fitoravina and Vepris macrophylla (Rutaceae). Three of these alkaloids were identified as arborinine, evoxanthine,
and 1,3-dimethoxy-10-methylacridan-9-one by comparison with authentic samples or by
comparison of their properties with published data. The remaining alkaloid was identified
on the basis of its spectral data as a new compound, 1-hydroxy-2,3,4-trimethoxyacridan-9-one.
