1. Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA
2. Institute of Chemical Biology & Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA
3. Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA