1. Department of Chemical Physiology and Biochemistry, Oregon Health and Science University, Portland, Oregon 97239, United States
2. Graduate Program in Biomedical Sciences, Oregon Health and Science University, Portland, Oregon 97239, United States
3. Department of Medicinal Chemistry, University of Utah College of Pharmacy, Salt Lake City, Utah 84112, United States
4. C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States