1. Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
2. School of Pharmacy, University of Otago, Dunedin 9016, New Zealand
3. Laboratory of Microbiology, Parasitology and Hygiene, Infla-Med Center of Excellence, University of Antwerp, Wilrijk 2610, Belgium
4. Drugs for Neglected Diseases Initiative, 15 Chemin Camille Vidart, Geneva 1202, Switzerland