1. Toxin/Natural Products Chemistry Program, Center for Coastal Environmental Health and Biomolecular Research, National Oceanic and Atmospheric Administration − National Ocean Service, Hollings Marine Laboratory, Charleston, South Carolina 29412, National Institute of Standards and Technology, Hollings Marine Laboratory, Charleston, South Carolina 29412, Department of Chemistry, College of Charleston, Charleston, South Carolina 29424, and Department of Medicine, Nephrology Division, Medical University of...