A lupeol derivative and other isolates with antiplasmodial activity from the stem root of Stapf. (Apocynaceae).

is a plant from western and eastern areas of African continent and is widely used in folk medicine for the treatment of various diseases including malaria. Herein, one previously undescribed acylated triterpene (), together with five already published natural products (-) were removed from its roots. The chemical structures of these compounds were determined by spectroscopic and spectrometric means (NMR, HRESIMS, IR and UV).