1. Department of Organic and Macromolecular Chemistry Heinrich‐Heine‐University Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany
2. Institute of Chemistry and Metabolomics University of Lübeck Ratzeburger Allee 160 23562 Lübeck Germany
3. Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences Utrecht University Utrecht 3584 CG The Netherlands