Design, Synthesis, and Biological Evaluation of Novel Tri- and Tetrasubstituted Imidazoles as Highly Potent and Specific ATP-Mimetic Inhibitors of p38 MAP Kinase: Focus on Optimized Interactions with the Enzyme’s Surface-Exposed Front Region
作者:Stefan A. Laufer、Dominik R. J. Hauser、David M. Domeyer、Katrin Kinkel、Andy J. Liedtke
DOI:10.1021/jm701529q
日期:2008.7.1
region (hydrophobic region II) of the enzyme led to the identification of extremely potent p38 MAPK inhibitors with p38 IC 50 values in the low nanomolar range. Approximately 90 pyridinylimidazole-based compounds with a range of potencies against p38alpha MAP kinase were further investigated for their ability to inhibit the release of tumor necrosis factor-alpha (TNFalpha) and/or interleukin-1beta (IL-1beta)
描述了新型2,4,5-和1,2,4,5-取代的2-硫代咪唑的合成,生物学测试和SAR。评估吡啶基部分2位上的氨基,氧基或硫氧基取代基对抑制剂效能和对p38丝裂原活化蛋白激酶(p38 MAPK)的选择性的贡献以及使细胞色素P450(CYP450)抑制作用最小化的能力。与酶表面暴露的前区(疏水区II)正向相互作用的极性取代的(环)脂族氨基取代基(例如四氢吡喃基氨基)的引入导致鉴定出p38 IC50值为50的强效p38 MAPK抑制剂。低纳摩尔范围。进一步研究了大约90种具有对p38alpha MAP激酶具有一定效力的吡啶基咪唑基化合物,它们具有抑制人类全血释放肿瘤坏死因子α(TNFalpha)和/或白介素1beta(IL-1beta)的能力。一些最有前途的候选药物除p38alpha以外,还针对一组17种不同的激酶进行了选择性分析,和/或测试了它们对许多代谢相关CYP450同工酶的相互作用潜能。