1. Organic Chemistry Department, Southern Research Institute, Birmingham, Alabama 35255, Clinical Psychopharmacology Section, DIR, National Institute on Drug Abuse, Baltimore, Maryland 21224, Laboratory of Medicinal Chemistry, Building 8, Room B1-23, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, Department of Biological Sciences, Ross Hall, Room 2360, University of Northern Colorado, Greeley, Colorado 80639, and Department of...