1. Departments of Medicinal Chemistry and Drug Metabolism and Pharmacokinetics, The Musculoskeletal, Microbial and Proliferative Diseases Center of Excellence for Drug Discovery, Computational, Analytical and Structural Sciences (CASS), the Department of Virology, The Metabolic and Viral Diseases Center of Excellence for Drug Discovery, and Discovery Research, GlaxoSmithKline Pharmaceuticals, Collegeville, Pennsylvania 19426