1. Institute of General
2. Inorganic and Theoretical Chemistry
3. University of Innsbruck
4. Center for Chemistry and Biomedicine
5. A-6020 Innsbruck
6. Institute of Organic Chemistry
7. Austria
8. Institute of Medicinal and Pharmaceutical Chemistry
9. Technische Universität Braunschweig
10. 38106 Braunschweig
11. Germany