Affiliation: | 1. Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon Department of Applied Chemistry, National Advanced School of Agro-Industrial Science, University of Ngaoundéré, Ngaoundéré, Cameroon;2. Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon;3. Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon;4. Department of Applied Chemistry, National Advanced School of Agro-Industrial Science, University of Ngaoundéré, Ngaoundéré, Cameroon;5. UMR CNRS n°6226, Institut des Sciences Chimiques de Rennes, ENSCR, Rennes, France |