Affiliation: | 1. Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany;2. Department of Chemistry, University of Konstanz, Universitätsstrasse 10, 78457 Konstanz, Germany Present address: Faculty of Science, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany;3. Faculty of Chemistry and Chemical Biology, TU Dortmund, Otto-Hahn-Strasse 4a, 44227 Dortmund, Germany |