1. Catalysis and Peptide Research Unit, University of KwaZulu Natal, Durban, 4001, South Africa
2. Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
3. Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3886, South Africa