1. 1Department of Chemistry, Georgia State University, Atlanta, GA 30302, USA
2. 2Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
3. 3Department of Chemical Technology of Drugs, Medical University of Gdańsk, 80-416 Gdańsk, Poland
4. 4Department of Organic Chemistry, University of Podlasie, 08-110 Siedlce, Poland