1. Faculty of Chemistry, Department
of Organic Chemistry, University of Łódź,
Tamka 12, PL-91403 Łódź, Poland
2. Institute
of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße
55, D-38106 Braunschweig, Germany
3. National Institute of Public Health-National Institute of Hygiene, Chocimska
24, PL-00791 Warsaw, Poland
4. Institute of Chemistry, University of Neuchatel, Avenue de Bellevaux
51, CH-2000 Neuchatel, Switzerland