1. Department of Inorganic and Organic Chemistry, Charles University in Prague, Faculty of Pharmacy in Hradec Králové, 500 05 Hradec Králové, Czech Republic
2. Zentiva a. s., U kabelovny 130, 102 37 Prague 10, Czech Republic
3. Department of Pharmaceutical Chemistry and Drug Control, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, 500 05 Hradec Králové, Czech Republic