Affiliation: | 1. Department of Chemistry and Biochemistry, University of Bochum, Universit?tsstrasse 150, 44801 Bochum, Germany, Fax: (+49)?234‐321‐4378 http://www.rub.de/ac1;2. Institute of Pharmacy, Free University Berlin, K?nigin‐Luise‐Strasse 2 + 4, 14195 Berlin, Germany;3. Department of Nuclear Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany;4. Max Planck Institute for Bioinorganic Chemistry, Stiftstrasse 34–36, 45470 Mülheim an der Ruhr, Germany |