1. University of Nis; Faculty of Science and Mathematics, Department of Chemistry; Visegradska33; 18000; Nis; Serbia
2. Department Microbial Drugs; Helmholtz-Centre for Infection Research; Inhoffenstrasse 8; 38124; Braunschweig; Germany
3. University Pierre and Marie Curie; Paris Institut of Molecular Chemistry, UMR 7201-FR2769; Case Courrier 45, Batiment F, 716, 4, place Jussieu; 75252; Paris cedex 05; France