1. Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
2. Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
3. Institute of Physical and Theoretical Chemistry, University of Regensburg, D-93040 Regensburg, Germany
4. Institute of Pharmacy, University of Regensburg, D-93040 Regensburg, Germany