1. Department of Biomolecular Chemistry Leibniz Institute for Natural Product Chemistry and Infection Biology (HKI) Beutenbergstrasse 11a 07745 Jena Germany
2. Department of Microbiology and Immunology at the Doherty Institute University of Melbourne Melbourne VIC 3000 Australia
3. Natural Product Chemistry Faculty of Biological Sciences Friedrich Schiller University Jena 07743 Jena Germany