Antimalarial compounds from the stem bark of Vismia laurentii.

a Department of Organic Chemistry, Faculty of Science, TWAS Research Unit (TRU) of University of Yaounde I, P.O. Box 812, Yaounde, Cameroon. E-mail: didetchamo@yahoo.fr b Laboratory of Pharmacognosy, LC1 UMR 7175, ULP, Faculty of Pharmacy, Strasbourg, France c Laboratory of NMR, LC1 IFR85, ULP, Faculty of Pharmacy, Strasbourg, France d Department of Biochemistry, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon e Division of Infectious Diseases Department of Medicine, University of California, San Francisco, CA 94943, USA