1. Chemistry Department and CICECO‐Aveiro Institute of Materials University of Aveiro Campus Universitário de Santiago 3810‐193 Aveiro Portugal
2. Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy University of Helsinki Viikinkaari 5 E (P.O.Box 56) 00014 Helsinki Finland
3. Helsinki Institute of Life Science University of Helsinki Viikinkaari 5 E (P.O.Box 56) 00014 Helsinki Finland