1. Department of Biological and Environmental Science and Nanoscience Center, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
2. BioTie Therapies Corporation, Tykistökatu 6, FI-20520 Turku, Finland
3. Institute of Pharmaceutical Chemistry, University of Szeged, H-6720 Eotvos 6, Szeged, Hungary