1. Contribution from the Department of Pharmacognosy and National Center for Natural Products Research, Department of Medicinal Chemistry, School of Pharmacy, and Department of Chemistry, University of Mississippi, Mississippi 38677, Center of Marine Biotechnology, University of Maryland Biotechnology Institute, Suite 236 Columbus Center, Baltimore, Maryland 21202, Institute of Tuberculosis Research, College of Pharmacy, University of Illinois, 833 South Wood Street, Chicago, Illinois 60612-7231, Department...