Chemical constituents from the leaves of Annona pickelii (Annonaceae)

► Leaves of Annona pickelii yielded terpenes, lignans, and isoquinoline alkaloids. ► Isolated compounds are reported for the first time. ► Isoquinoline alkaloids are the chemotaxonomic marker of the genus Annona. ► Furofuranic type of lignans are predominant in the leaves of A. pickelii. ► The NMR data of nornuciferine (8) were revised.