1. Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
2. Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
3. Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
4. Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
5. Division of Drug Discovery & Safety, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands