Five labdane diterpenoids from the seeds of Aframomum zambesiacum.

Five labdane diterpenoids, (3-5), zambesiacolactone A (7) and zambesiacolactone B (8), were isolated from the seeds of Aframomum zambesiacum (Baker) K. Schum., along with five known labdanes and a linear sesquiterpene, nerolidol.

Alkaloids from leaves and stems of Vallesia glabra.

Eleven known indole alkaloids: vallesine, aspidospermine, 11-methoxydichotine, apparicine, tubotaïwine, vincadifformine, condylocarpine, (-)-rhazinilam, aspidospermatine, haplocidine, and 18-oxohaplocidine, have been isolated from leaves and stems of Vallesia glabra (Cav.) Link. (Apocynaceae) from Bolivia.