1. Division of Medicinal Chemistry and Natural Products, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7568
2. Michael Barber Centre for Mass Spectrometry, Manchester Interdisciplinary Biocentre, University of Manchester, 131 Princess Street, Manchester, M1 7DN, U.K.
3. Anticonvulsant Screening Program, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 6001 Executive Boulevard, Suite 2106, Rockville, Maryland 20892-9523
4. Carolina Center for Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599-7264
5. Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290