"Frontiers in Medicinal Chemistry" is an Ebook series devoted to the review of areas of important topical interest to medicinal chemists and others in allied disciplines. "Frontiers in Medicinal Chemistry" covers all the areas of medicinal chemistry, including developments in rational drug design, bioorganic chemistry, high-throughput screening, combinatorial chemistry, compound diversity measurements, drug absorption, drug distribution, metabolism, new and emerging drug targets, natural products, pharmacogenomics, chemoinformatics, and structure-activity relationships. Medicinal chemistry as