1. Department of Chemistry, National and Kapodistrian University of Athens, Zografou 15771, Athens, Greece
2. Department of Chemistry, University of Patras, Patras 26504, Greece
3. Department of Chemistry, University of Ioannina, Ioannina 45110, Greece
4. Department of Pharmacy, University of Patras, Patras 26504, Greece
5. Department of Biomolecular Structure, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia