1. Department of Medicinal Chemistry, Merck Frosst Canada & Co., 16711 Trans Canada Highway, Kirkland, Quebec H9H 3L1, Canada, Department of Biochemistry, Merck Frosst Canada & Co., 16711 Trans Canada Highway, Kirkland, Quebec H9H 3L1, Canada, Department of Medicinal Chemistry, Merck Research Laboratories, PO Box 2000, Rahway, New Jersey 07065, Miller School of Medicine, University of Miami at Mount Sinai Medical Center, 430 Alton Road, Miami Beach, Florida 33140, and Department of Pharmacology, Merck...