1. Department of Organic Chemistry
2. Faculty of Chemical Engineering and Technology
3. University of Zagreb
4. HR-10000 Zagreb
5. Croatia
6. Rega Institute
7. Department of Microbiology and Immunology
8. B-3000 Leuven
9. Belgium
10. Department of Pharmaceutical and Pharmacological Sciences
11. Rega Institute for Medical Research
12. Laboratory of Virology and Chemotherapy