1. Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, 48149 Münster, Germany
2. Institute of Food Chemistry, University of Münster, 48149 Münster, Germany
3. Leiden Academic Centre for Drug Research (LACDR), Division of Drug Discovery and Safety, Leiden University, 2333 CC Leiden, The Netherlands
4. European Institute for Molecular Imaging (EIMI), University of Münster, 48149 Münster, Germany
5. Institute for Organic Chemistry, University of Münster, 48149 Münster, Germany