作者:Jacobus P.D. van Veldhoven、Rongfang Liu、Stephanie A. Thee、Yessica Wouters、Sanne J.M. Verhoork、Christiaan Mooiman、Julien Louvel、Adriaan P. IJzerman
DOI:10.1016/j.bmc.2015.02.018
日期:2015.7
Structure-affinity relationship (SAR) and structure-kinetics relationship (SKR) studies were combined to investigate a series of biphenyl anthranilic acid agonists for the HCA(2) receptor. In total, 27 compounds were synthesized and twelve of them showed higher affinity than nicotinic acid. Two compounds, 6g (IC50 = 75 nM) and 6z (IC50 = 108 nM) showed a longer residence time profile compared to nicotinic acid, exemplified by their kinetic rate index (KRI) values of 1.31 and 1.23, respectively. The SAR study resulted in the novel 2-F, 4-OH derivative (6x) with an IC50 value of 23 nM as the highest affinity HCA(2) agonist of the biphenyl series, although it showed a similar residence time as nicotinic acid. The SAR and SKR data suggest that an early compound selection based on binding kinetics is a promising addition to the lead optimization process. (C) 2015 Elsevier Ltd. All rights reserved.