1. Department of Pharmaceutical Chemistry—Medicinal Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Universitätsplatz 1, A-8010 Graz, Austria, Department of Medicinal Chemistry, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria, Institute of Pharmacy, Department of Pharmakognosy, University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria, Institute for Lasertechnology in Medicine and Metrology at the University of Ulm, Helmholtzstrasse 12, D-89081 Ulm, Germany