1. Work Group Microbial Drugs, Helmholtz Centre for Infection Research, Inhoffenstrasse
7, 38124 Braunschweig, Germany
2. Helmholtz Institute for Pharmaceutical
Research and Department of Pharmaceutical Biotechnology, Saarland University, P.O. Box 15115, 66041 Saarbrücken,
Germany
3. Department of Inorganic
Chemistry, Saarland University, Campus
C4 1, 66123 Saarbrücken,
Germany