Synthesis and in vitro evaluations of 6-(hetero)-aryl-imidazo[1,2-b]pyridazine-3-sulfonamide’s as an inhibitor of TNF-α production
作者:Shivaji S. Pandit、Mahesh R. Kulkarni、Yashwant B. Pandit、Nitin P. Lad、Vijay M. Khedkar
DOI:10.1016/j.bmcl.2017.11.026
日期:2018.1
imidazo[1,2-b]pyridazine scaffold: design, synthesis and biological evaluation. By the introducing sulfonamide functionality at 3 positions and substituting 6 positions with (hetero)-aryl groups’, a small library of compounds was prepared. All synthesized compounds were screened for lipopolysaccharide (LPS) mediated TNF-α production inhibitory activity. Biological data revealed that the majority of the
肿瘤坏死因子-α是重要的促炎细胞因子,在宿主的免疫系统防御过程中起关键作用,其过表达导致多种炎症性疾病,如类风湿性关节炎,克罗恩病,牛皮癣等。我们对咪唑[1,2- b]的药物化学研究]哒嗪支架:设计,合成和生物学评估。通过在3个位置引入磺酰胺官能团并用(杂)芳基取代6个位置,制备了小的化合物库。筛选所有合成的化合物的脂多糖(LPS)介导的TNF-α抑制活性。生物学数据显示,该系列的大多数化合物均显示出中等至有效的TNF-α抑制活性。化合物5u和5v是该系列中最有效的化合物,其IC 50活性 分别为0.5 µM和0.3 µM。短的SAR表明咪唑[1,2- b]上的3-磺酰基-4-芳基哌啶-4-腈在hPBMC分析中,与3-(4-芳基哌嗪-1-基)磺酰基相比,]哒嗪显示出更好的活性。分子建模研究表明,由于复合物的额外稳定性(由于额外的pi-pi(π-π)堆积,氢键相互作用),有效的TNF-α抑制活性为5v。