1. Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
2. Vahlteich Medicinal Chemistry Core, University of Michigan, Ann Arbor, Michigan 48109-1065, United States
3. Institute for Tuberculosis Research, University of Illinois, Chicago, Illinois 60612-7231, United States
4. Department of Biochemistry and Molecular Biology, Pennsylvania State University, State College, University Park, Pennsylvania 16801, United States