1. Institute of Pharmacy, Faculty of Chemistry and Pharmacy, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
2. Institute of Biochemistry, Emil-Fischer-Center, Friedrich-Alexander-University Erlangen-Nürnberg, Fahrstraße 17, D-91054 Erlangen, Germany
3. Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, D-91058 Erlangen, Germany
4. Department of Chemistry and Pharmacy, Computer-Chemistry-Center, Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstraße 25, D-91052 Erlangen, Germany