1. Pharmaceutical Biology Pharmacy Department Ludwig‐Maximilians University of Munich Butenandtstraße 5‐13 81377 Munich Germany
2. Institute of Organic Chemistry University of Innsbruck Innrain 80‐82 6020 Innsbruck Austria
3. Pharmaceutical Chemistry Pharmacy Department Ludwig‐Maximilians University of Munich Butenandtstraße 5‐13 81377 Munich Germany