1. Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699, United States
2. Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, United States
3. Department of Chemistry, Binghamton University, SUNY, Binghamton, New York 13902, United States
4. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States
5. Department of Infectious Diseases, Drug Discovery Division, Southern Research Institute, Birmingham, Alabama 35255, United States
6. Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, United States