1. Department of Pharmaceutical Sciences, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy, Institut für Biochemie, Freie Universität Berlin, Thielallee 63, 14195 Berlin, Germany, Department of Medicinal Chemistry, Royal Danish School of Pharmacy, 2 Universitetsparken, DK 2100 Copenhagen, Denmark, and Division of Molecular Toxicology, School of Biological Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom