Identification of 3-aryl-5-methyl-isoxazole-4-carboxamide derivatives and analogs as novel HIF-2 α agonists through docking-based virtual screening and structural modification

Eur J Med Chem. 2024 Feb 16;268:116227. doi: 10.1016/j.ejmech.2024.116227. Online ahead of print.ABSTRACTHypoxia-inducible factor-2 (HIF-2) serves as the pivotal transcription factor in cellular responses to low oxygen levels, particularly concerning the regulation of erythropoietin (EPO) production. A docking-based virtual screening on crystal structures of HIF-2α inhibitors unexpectedly identified 3-phenyl-5-methyl-isoxazole-4-carboxamide derivative v19 as a hit of HIF-2α agonist. Further structural optimizations of compound v19 led to the discovery of a series of HIF-2α agonists with novel scaffolds. The most promising compounds 12g and 14d exhibited potent HIF-2α agonistic activities in vitro with EC50 values of 2.29 μM and 1.78 μM, respectively. Molecular dynamics simulations have revealed their capacity to allosterically enhance HIF-2 dimerization, which shed light on their mechanism of action. Moreover, compound 14d demonstrated a favorable pharmacokinetic (PK) profile, boasting an impressive oral bioavailability value of 68.71 %. These findings strongly suggest that compound 14d is an auspicious lead compound for the treatment of renal anemia.PMID:38387335 | DOI:10.1016/j.ejmech.2024.116227

Source: European Journal of Medicinal Chemistry - February 22, 2024 Category: Chemistry Authors: Siyuan Chen Yao Liu Zhe Wang Chengcheng Qi Yanzhen Yu Lei Xu Tingjun Hou Rong Sheng Source Type: research