1. NORCE Norwegian Research Centre AS, P.O. Box
6434, Tromsø Science Park, NO-9294 Tromsø, Norway
2. Department of Pharmacy, UiT The Arctic University of Norway, P.O. Box 6050, Langnes, NO-9037 Tromsø, Norway
3. Department of Chemistry, University of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway