Design and synthesis of conformationally restricted inhibitors of active thrombin activatable fibrinolysis inhibitor (TAFIa)
作者:Mikael Brink、Anders Dahlén、Thomas Olsson、Magnus Polla、Tor Svensson
DOI:10.1016/j.bmc.2014.02.010
日期:2014.4
A series of 4,5,6,7-tetrahydro-1H-benzimidazole-5-carboxylic acid and 5,6,7,8-tetrahydroimidazo [1,2-a] pyridine-7-carboxylic acid derivatives designed as inhibitors of TAFIa has been prepared via a common hydrogenation-alkylation sequence starting from the appropriate benzimidazole and imidazopyridine system. We present a successful design strategy using a conformational restriction approach resulting in potent and selective inhibitors of TAFIa. The X-ray structure of compound 5 in complex with a H333Y/H335Q double mutant TAFI indicate that the conformational restriction is responsible for the observed potency increase. (c) 2014 Elsevier Ltd. All rights reserved.