Design of a New Class of Orally Active Fibrinogen Receptor Antagonists
作者:Scott I. Klein、Bruce F. Molino、Mark Czekaj、Charles J. Gardner、Valeria Chu、Karen Brown、Ralph D. Sabatino、Jeffrey S. Bostwick、Charles Kasiewski、Ross Bentley、Vincent Windisch、Mark Perrone、Christopher T. Dunwiddie、Robert J. Leadley
DOI:10.1021/jm9801096
日期:1998.7.1
The integrin receptor recognition sequence Arg-Gly-Asp was successfully used as a template from which to develop a series of potent, selective, orallyactive, peptide-based fibrinogen receptor antagonists with a long duration of action. Simple modifications centered on the Arg and Gly residues quickly led to a modified peptide (1) with significantly enhanced ability to inhibit in vitro platelet aggregation
Orally active thrombin inhibitors. Part 1: Optimization of the P1-moiety
作者:Helmut Mack、Dorit Baucke、Wilfried Hornberger、Udo E.W. Lange、Werner Seitz、H. Wolfgang Höffken
DOI:10.1016/j.bmcl.2006.02.040
日期:2006.5
The synthesis and SAR of novel nanomolar thrombin inhibitors with the common backbone HOOC-CH2-D-cyclohexylalanyl-3,.4-dehydroprolyl-NH-CH2-aryl-C(=NH)NH2 are described together with their ecarin clotting time (ECT) prolongation as measure for thrombin inhibition ex vivo. The aryl P1-moiety mimicking the arginine part of the D-Phe-Pro-Arg derived thrombin inhibitors turned out to be a key component for in vitro potency and in vivo activity. Optimization of this part led to compounds with improved antithrombin activity in rats and dogs after oral administration compared to the recently launched anticoagulant melagatran. (C) 2006 Elsevier Ltd. All rights reserved.
Thrombin inhibitors
申请人:Abbott GmbH & Co., KG
公开号:US06740647B1
公开(公告)日:2004-05-25
Novel five-membered heterocyclic amidines, their preparation and use as competitive inhibitors of trypsin-like serine proteases, especially thrombin and kininogenases such as kallikrein. Pharmaceutical compositions which contain the compounds as active ingredients, and use of the compounds as thrombin inhibitors, anticoagulants and antiinflammatory agents.