1. Robert Robinson Laboratories, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
2. Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, United Kingdom
3. BioFocus, Chesterford Research Park, CB10 1XL, United Kingdom
4. BioFocus, Gewerbestrasse 16, CH-4123, Allschwil, Switzerland