[EN] HETEROARYL COMPOUNDS AS CXCR4 INHIBITORS, COMPOSITION AND METHOD USING THE SAME<br/>[FR] COMPOSÉS HÉTÉROARYLÉS UTILISÉS COMME INHIBITEURS DE CXCR4, COMPOSITION ET PROCÉDÉ D'UTILISATION DE CEUX-CI
申请人:SUZHOU YUNXUAN YIYAO KEJI YOUXIAN GONGSI
公开号:WO2019060860A1
公开(公告)日:2019-03-28
The present disclosure provides heteroaryl compounds of Formula (I), processes for their preparation, pharmaceutical compositions containing them, and their use in the treatment of diseases and disorders, arising from or related to the CXCR4 pathway.
report the design, synthesis and evaluation of novel CXCR4 antagonists based on a pyrrolidine scaffold. The structural exploration/optimization identified numerous potent CXCR4 antagonists, represented by compound 46, which displayed potent binding affinity to CXCR4 receptor (IC50 = 79 nM competitively displacing fluorescent 12G5 antibody) and inhibited CXCL12 induced cytosolic calcium flux (IC50 = 0.25 nM)
Structural optimization of aminopyrimidine-based CXCR4 antagonists is reported. The optimization is guided by molecular docking studies based on available CXCR4-small molecule crystal complex. The optimization identifies a number of compounds with improved receptor binding affinity and functional activity exemplified by compound 23 (inhibition of APC-conjugate clone 12G5 for CXCR4 binding in a cell based assay: IC50 = 8.8 nM; inhibition of CXCL12 induced cytosolic calcium increase: IC50 = 0.02 nM). In addition, compound 23 potently inhibits CXCR4/CXLC12 mediated chemotaxis in a matrigel invasion assay. Furthermore, compound 23 exhibits good physicochemical properties (MW 367, clogP 2.1, PSA 48, pKa 7.2) and in vitro safety profiles (marginal/moderate inhibition of CYP isozymes and hERG). These results represent significant improvement over the initial hit from scaffold hybridization and suggest that compound 23 can be used as a starting point to support lead optimization. (C) 2019 Elsevier Masson SAS. All rights reserved.
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