1. Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, United States
2. University of Minnesota Institute for Therapeutics Discovery & Development (ITDD), 717 Delaware Street SE Room 519E, Minneapolis, Minnesota 55414, United States
3. Department of Neuroscience and Cell Biology, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey 08854, United States
4. Department of Pharmacology, Medical School, University of Minnesota, Minneapolis, Minnesota 55455, United States
5. Departments of Neuroscience, Pharmacology and Dermatology, Medical School, University of Minnesota, Minneapolis, Minnesota 55455, United States