Synthesis and structure–activity relationships of heteroaryl substituted-3,4-diamino-3-cyclobut-3-ene-1,2-dione CXCR2/CXCR1 receptor antagonists
作者:Younong Yu、Michael P. Dwyer、Jianping Chao、Cynthia Aki、Jianhua Chao、Biju Purakkattle、Diane Rindgen、Richard Bond、Rosemary Mayer-Ezel、James Jakway、Hongchen Qiu、R. William Hipkin、James Fossetta、Waldemar Gonsiorek、Hong Bian、Xuedong Fan、Carol Terminelli、Jay Fine、Daniel Lundell、J. Robert Merritt、Zhenmin He、Gaifa Lai、Minglang Wu、Arthur Taveras
DOI:10.1016/j.bmcl.2008.01.024
日期:2008.2
Comprehensive SAR studies were undertaken in the 3,4-diaminocyclobut-3-ene-1,2-dione class of CXCR2/CXCR1 receptor antagonists to explore the role of the heterocycle on chemokine receptor binding affinities, functional activity, as well as oral exposure in rat. The nature of the heterocycle as well as the requisite substitution pattern around the heterocycle was shown to have a dramatic effect on the overall biological pro. le of this class of compounds. The furyl class, particularly the 4-halo adducts, was found to possess superior binding affinities for both the CXCR2 and CXCR1 receptors, functional activity, as well as oral exposure in rat versus other heterocyclic derivatives. (c) 2008 Elsevier Ltd. All rights reserved.