Fast Iterative Synthetic Approach toward Identification of Novel Highly Selective p38 MAP Kinase Inhibitors
作者:Sandra Röhm、Benedict-Tilman Berger、Martin Schröder、Apirat Chaikuad、Rob Winkel、Koen F. W. Hekking、Jorg J. C. Benningshof、Gerhard Müller、Roberta Tesch、Mark Kudolo、Michael Forster、Stefan Laufer、Stefan Knapp
DOI:10.1021/acs.jmedchem.9b01227
日期:2019.12.12
have led to the discovery of several potent inhibitors; however, so far no highly selective type-II inhibitors have been reported. We previously identified VPC-00628 as a potent and selective type-II inhibitor of p38α/β with few off-targets. Here we analyzed the chemical building blocks of VPC-00628 that played a key role in achieving potency and selectivity through targeting an inactive state of the
p38丝裂原活化的蛋白激酶是环境应激反应的关键介质,并且是治疗炎症性疾病和癌症的有希望的靶标。大量的努力导致发现了几种有效的抑制剂。然而,到目前为止,还没有报道高选择性的II型抑制剂。我们先前将VPC-00628确定为p38α/β的有效且选择性的II型抑制剂,几乎没有脱靶现象。在这里,我们分析了VPC-00628的化学结构单元,这些结构单元通过靶向由独特的折叠P环构象诱导的激酶的非活性状态,在实现效能和选择性方面发挥了关键作用。使用快速,系统的组合合成方法,我们确定了化合物93(SR-318)对p38α/β具有极强的效力和选择性,可有效抑制全血中TNF-α的释放。因此,SR-318提供了一种有效的,选择性的p38α/βII型抑制剂,可用作化学探针,用于靶向这两种p38同工型的特定非活性状态。