1. Division of Pharmaceutical Biosciences; Faculty of Pharmacy; University of Helsinki; P.O. Box 56 FI-00014 Helsinki
2. Division of Pharmaceutical Chemistry and Technology; Faculty of Pharmacy; University of Helsinki; P.O. Box 56 FI-00014 Helsinki
3. Laboratory of Organic Chemistry and Chemical Biology; Department of Chemistry; University of Turku; FI-20014 Turku