1. Institut für Pharmazie Martin-Luther-Universität Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle Germany
2. Department of Medicine Division of Infectious Diseases University of British Columbia 2503-2350 Health Sciences Mall Vancouver V6T 1Z3 BC Canada
3. Institut für Chemie Martin-Luther-Universität Halle-Wittenberg Kurt-Mothes-Str. 2 06120 Halle Germany