1. Department Pharmaceutical MicrobiologyHans Knöll InstituteFriedrich Schiller University Beutenbergstrasse 11a 07745 Jena Germany
2. Department Biomolecular ChemistryLeibniz Institute for Natural, Product Research and Infection Biology—Hans Knöll Institute Beutenbergstrasse 11a 07745 Jena Germany
3. Transfer Group Anti-InfectivesLeibniz Institute for Natural Product, Research and Infection Biology—Hans Knöll Institute Beutenbergstrasse 11a 07745 Jena Germany
4. Faculty of Biological SciencesFriedrich Schiller University, Jena 07745 Jena Germany