Structural Modification of the P2‘ Position of 2,7-Dialkyl-Substituted 5(<i>S</i>)-Amino-4(<i>S</i>)-hydroxy-8-phenyl-octanecarboxamides: The Discovery of Aliskiren, a Potent Nonpeptide Human Renin Inhibitor Active after Once Daily Dosing in Marmosets
作者:Jürgen Maibaum、Stefan Stutz、Richard Göschke、Pascal Rigollier、Yasuchika Yamaguchi、Frédéric Cumin、Joseph Rahuel、Hans-Peter Baum、Nissim-Claude Cohen、Christian R. Schnell、Walter Fuhrer、Markus G. Gruetter、Walter Schilling、Jeanette M. Wood
DOI:10.1021/jm070316i
日期:2007.10.1
Due to its function in the rate limiting initial step of the renin-angiotensin system, renin is a particularly promising target for drugs designed to control hypertension, a growing risk to health worldwide. Despite vast efforts over more than two decades, no orally efficacious renin inhibitor had reached the market. As a result of a structure-based topological design approach, we have identified a novel class of small-molecule inhibitors with good oral blood-pressure lowering effects in primates. Further lead optimization aimed for improvement of in vivo potency and duration of action, mainly by P2' modifications at the hydroxyethylene transition-state isostere. These efforts resulted in the discovery of aliskiren (46, CGP060536B, SPP100), a highly potent, selective inhibitor of renin, demonstrating excellent efficacy in sodium-depleted marmosets after oral administration, with sustained duration of action in reducing dose-dependently mean arterial blood pressure. Aliskiren has recently received regulatory approval by the U.S. Food and Drug Administration for the treatment of hypertension.