1. Max Planck Institute of Molecular Physiology Department of Chemical Biology Otto-Hahn-Strasse 11 44227 Dortmund Germany
2. Technical University Dortmund Faculty of Chemistry Chemical Biology Otto-Hahn-Strasse 6 44221 Dortmund Germany
3. Technical University Dortmund Faculty of Chemistry Inorganic Chemistry Otto-Hahn-Strasse 6 44221 Dortmund Germany
4. Compound Management and Screening Center Dortmund Germany