1. Department of Medical Biophysics; Faculty of Biology and Environmental Protection; University of Łódź; Pomorska St. 141/143 90236 Łódź Poland
2. Institut de Chimie; Université de Neuchâtel; Avenue de Bellevaux 51 2000 Neuchâtel Switzerland
3. Department für Chemie und Biochemie; Universität Bern; Freiestrasse 3 3012 Bern Switzerland
4. Department of Organic Chemistry; Faculty of Chemistry; University of Łódź; Tamka St. 12 91403 Łódź Poland