1. 1Department of Microbial Natural Products (MINS), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) – Helmholtz Centre for Infection Research (HZI), Saarland University Campus Building E8 1, 66123 Saarbrücken, Germany
2. 2German Center for Infection Research (DZIF), Partner site Hannover-Braunschweig, 38124 Braunschweig, Germany
3. 3Department of Pharmacy, Saarland University, Building E8 1, 66123 Saarbrücken, Germany