1. Institute for Organic Chemistry Gottfried Wilhelm Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Germany
2. Helmholtz Centre for Infection Research (HZI) Inhoffenstrasse 7 38124 Braunschweig Germany
3. Centre of Biomolecular Drug Research (BMWZ) Gottfried Wilhelm Leibniz Universität Hannover Schneiderberg 38 30167 Hannover Germany