1. Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
2. Technical University of Dortmund Department of Chemical Biology Otto-Hahn-Strasse 6 44227 Dortmund Germany
3. Current address: Institute for Stem-Cell Biology Regenerative Medicine and Innovative Therapies IRCCS Casa Sollievo della Sofferenza 71013 San Giovanni Rotondo Italy
4. Center for Nanomedicine and Tissue Engineering (CNTE) ASST Grande Ospedale Metropolitano Niguarda 20162 Milan Italy
5. Technical University of Dortmund Department of Inorganic Chemistry Otto-Hahn-Strasse 6 44227 Dortmund Germany
6. Compound Management and Screening Center (COMAS) Otto-Hahn-Strasse 11 44227 Dortmund Germany
7. Current address: AiCuris Anti-infective Cures AG Friedrich-Ebert-Str. 475 42117 Wuppertal Germany