Substituted 2,2-bisaryl-bicycloheptanes as novel and potent inhibitors of 5-lipoxygenase activating protein
作者:Dwight Macdonald、Christine Brideau、Chi Chung Chan、Jean-Pierre Falgueyret、Richard Frenette、Jocelyne Guay、John H. Hutchinson、Hélène Perrier、Peptiboon Prasit、Denis Riendeau、Philip Tagari、Michel Thérien、Robert N. Young、Yves Girard
DOI:10.1016/j.bmcl.2008.01.105
日期:2008.3
The discovery and SAR of a novel series of substituted 2,2-bisaryl-bicycloheptane inhibitors of 5-lipoxygenase activating protein ( FLAP) are herein described. SAR studies have shown that 2,5-substitution on the exo-aryl group is optimal for potency. The most potent compounds in this series have an ortho-nitrogen aryl linked with a methyleneoxy as the 5-substituent and a polar group such as a urethane as the 2-substituent. One of the most potent compounds identified is the 5- benzothiazolymethoxy-2-pyridinylcarbamate derivative 2 ( FLAP IC50 = 2.8 nM) which blocks 89% of ragweed induced urinary LTE4 production in dogs ( at an I. V. dose of 2.5 mu g/kg/min). This compound inhibits calcium ionophore stimulated LTB4 production in both human polymorphonuclear ( PMN) leukocytes and human whole blood ( IC50 = 2.0 and 33 nM, respectively). (c) 2008 Elsevier Ltd. All rights reserved.