1. Institute of Exact Sciences
2. Department of Chemistry
3. Federal University of Minas Gerais
4. Belo Horizonte
5. Brazil
6. Faculty of Exact Sciences and Technologies
7. Federal University of Grande Dourados
8. Dourados
9. Department of Chemistry and Chemical Biology
10. Institut für Organische und Biomolekulare Chemie
11. Georg-August-Universität Göttingen
12. Gottingen 37077
13. Germany