1. Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
2. Department of Drug Design and Optimization, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI), University Campus E8.1, 66123 Saarbrücken, Germany
3. European Institute for Molecular Imaging, Westfälische Wilhelms-Universität Münster, Waldeyerstraße 15, 48149 Münster, Germany
4. Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany