1. Department of Organic Chemistry, Institute of Chemistry, Faculty of Science, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
2. Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia
3. Department of Medical and Clinical Biochemistry, Pavol Jozef Šafárik University, 040 01 Košice, Slovakia