1. Department of Pharmacology and Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, 1703 E Mabel Street, Tucson, Arizona 85721, United States
2. Department of Chemistry and Biochemistry, University of Arizona, 1306 E University Blvd., Tucson, Arizona 85721, United States
3. University of Arizona Cancer Center, University of Arizona, 3838 N. Campbell Avenue, Tucson, Arizona 85719, United States