N-[2-(2,4-Difluorophenoxy)trifluoromethyl-3-pyridyl]sulfonamide derivatives 3—6 were prepared by the reaction of 3-pyridylamines and sulfonyl chlorides. Inhibitory activities of these compounds toward secretory phospholipase A2 (sPLA2) were examined and N-[2-(2,4-difluorophenoxy)-5-trifluoromethyl-3-pyridyl]-2-naphthalenesulfonamide (5c) was found to be the most potent against sPLA2 with an IC50 value of 90 μM.
Chemical validation of a druggable site on Hsp27/HSPB1 using in silico solvent mapping and biophysical methods
作者:Leah N. Makley、Oleta T. Johnson、Phani Ghanakota、Jennifer N. Rauch、Delaney Osborn、Taia S. Wu、Tomasz Cierpicki、Heather A. Carlson、Jason E. Gestwicki
DOI:10.1016/j.bmc.2020.115990
日期:2021.3
applied mixed solvent molecular dynamics (MixMD) to predict three possible binding sites, which we confirmed using NMR-based solvent mapping. Using this knowledge, we then used NMR spectroscopy to carry out a fragment-based drug discovery (FBDD) screen, ultimately identifying two fragments that bind to one of these sites. A medicinal chemistry effort improved the affinity of one fragment by ~50-fold (16 µM)