1. Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
2. KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
3. Bachem AG, Hauptstrasse 144, Bubendorf 4416, Switzerland
4. CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, and Department of Organic Chemistry, University of Barcelona, Barcelona 08028, Spain
5. Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain