1. Organic ChemistrySaarland University Campus C4.2 66123 Saarbrücken Germany
2. Department Microbial Natural Products (MINS)Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)–Helmholtz Centre for Infection Research (HZI) Campus E8.1 66123 Saarbrücken Germany
3. Department of Tropical MedicineUniversity of Tübingen Wilhelmstraße 27 72074 Tübingen Germany
4. Center for Molecular Medicine CologneUniversity of Cologne Robert Koch Str. 21 50931 Cologne Germany
5. Department I of Internal MedicineUniversity of Cologne 50937 Cologne (Germany) and German Center for Infection Research (DZIF), Partner Site Bonn-Cologne Germany
6. Department of Drug Design and Optimization (DDOP)Helmholtz-Institute for Pharmaceutical Research Saarland, (HIPS)–Helmholtz Centre for Infection Research (HZI) Campus E8.1 66123 Saarbrücken Germany
7. Department of PharmacySaarland University Campus E8.1 66123 Saarbrücken Germany