Two alkamides E,E-2,4-octadienamide and E,Z-2,4-decadienamide have bee
n isolated from Phyllanthus fraternus, a plant used in Ghanaian tradit
ional medicine to treat malaria. The compounds possess an alpha,beta,g
amma,delta-unsaturated conjugated amide, a feature believed to enhance
antiplasmodial activity. By means of an in vitro assay the two alkami
des have been shown to possess moderate antiplasmodial activity.