1. Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
2. Department Chemie, Ludwig- Maximilians Universität (LMU) München, München81377, Germany
3. Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, Erlangen91508, Germany
4. Department of Anatomy, Physiology, and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama36849, United States