1. Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, México City 04510, México, Instituto de Biología, Universidad Nacional Autónoma de México, México City 04510, México, Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Illinois 10612, and Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona 85721-0207