1. Institute
of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße 55, D-38106 Braunschweig, Germany
2. Institute
of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany
3. Department
of Analytical Chemistry, University of Vienna, Waehringer Straße 38, 1090 Vienna, Austria
4. Institute
of Inorganic Chemistry, University of Vienna, Waehringer Straße 42, 1090 Vienna, Austria