D. Ngnokam*
Faculty of Science, Department of Chemistry, University of Dschang, P.O. Box 67, Dschang, Cameroon
J.M. Nuzillard
Laboratoire de Pharmacognosie, UMR. 6013 B.P. 1039, 51097 Reims Cedex 2, France
C. Bliard
Laboratoire de Pharmacognosie, UMR. 6013 B.P. 1039, 51097 Reims Cedex 2, France
Abstract
New acyclic triterpenoids, sapelenin E (1) and F (2) were isolated from the stem bark of Entandrophragma cylindricum. Their full structure including absolute configuration in sapelenin E (1) were determine from spectroscopic data and by chemical transformation.
KEY WORDS: Entandrophragma cylindricum, Sapelenin, Meliaceae, Acyclic triterpenoids
Bull. Chem. Soc. Ethiop. 2005, 19(2), 227-231.