Further optimization of the K-Cl cotransporter KCC2 antagonist ML077: Development of a highly selective and more potent in vitro probe
作者:Eric Delpire、Aleksandra Baranczak、Alex G. Waterson、Kwangho Kim、Nathan Kett、Ryan D. Morrison、J. Scott Daniels、C. David Weaver、Craig W. Lindsley
DOI:10.1016/j.bmcl.2012.05.126
日期:2012.7
Further chemical optimization of the MLSCN/MLPCN probe ML077 (KCC2 IC50 = 537 nM) proved to be challenging as the effort was characterized by steep SAR. However, a multi-dimensional iterative parallel synthesis approach proved productive. Herein we report the discovery and SAR of an improved novel antagonist (VU0463271) of the neuronal-specific potassium-chloride cotransporter 2 (KCC2), with an IC50 of 61 nM and > 100-fold selectivity versus the closely related Na-K-2Cl cotransporter 1 (NKCC1) and no activity in a larger panel of GPCRs, ion channels and transporters. (C) 2012 Elsevier Ltd. All rights reserved.