1. Laboratorium für Organische Chemie, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
2. Roche Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, 4070 Basel, Switzerland
3. Swiss Tropical and Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland
4. University of Basel, Petersplatz 1, 4003 Basel, Switzerland
5. Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, 55128 Mainz, Germany