Amidinohydrazones as guanidine bioisosteres: application to a new class of potent, selective and orally bioavailable, non-amide-based small-molecule thrombin inhibitors
作者:Richard M. Soll、Tianobao Lu、Bruce Tomczuk、Carl R. Illig、Cynthia Fedde、Stephen Eisennagel、Roger Bone、Larry Murphy、John Spurlino、F.Raymond Salemme
DOI:10.1016/s0960-894x(99)00632-0
日期:2000.1
We describe a new class of potent, non-amide-based small molecule thrombin inhibitors in which an amidinohydrazone is used as a guanidine bioisostere on a non-peptide scaffold. Compound 4 exhibits nM inhibition of thrombin, is selective for thrombin, and shows 60 and 23% bioavailability in rabbits and dogs, respectively. Crystallographic analysis of 4 bound to thrombin confirmed the amindinohydrazone binding mode. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.