1. Department of Plant Sciences, Microbiology & Biotechnology, College of Natural Sciences, Makerere University, Kampala, Uganda
2. Department of Chemistry, College of Natural Sciences, Makerere University, Kampala, Uganda
3. Institut für Chemie, Universität Potsdam, Potsdam, Germany
4. School of Pharmacy, Macau University of Science and Technology, Macau, China
5. Dr. Neher’s Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
6. United States Army Medical Research Unit-Kenya (USAMRU-K), Kenya Medical Research Institute (KEMRI)—Walter Reed Project, Kisumu, Kenya
7. Department of Chemistry, University of Nairobi, Nairobi, Kenya