1. Department of Chemistry and Biochemistry, 103 Chemistry and Biochemistry Montana State University Bozeman MT 59717 USA
2. Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases (LCID) National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH) 33 North Drive Bethesda MD 20892 USA
3. Department of Chemistry and Biochemistry University of Notre Dame 347 Nieuwland Hall of Science Notre Dame IN 46556 USA