1. Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany
2. Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover – Braunschweig, 38124 Braunschweig, Germany
3. Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
4. Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany