Isoxazol-5(2<i>H</i>)-one: a new scaffold for potent human neutrophil elastase (HNE) inhibitors
作者:Claudia Vergelli、Igor A. Schepetkin、Letizia Crocetti、Antonella Iacovone、Maria Paola Giovannoni、Gabriella Guerrini、Andrei I. Khlebnikov、Samuele Ciattini、Giovanna Ciciani、Mark T. Quinn
DOI:10.1080/14756366.2017.1326915
日期:2017.1.1
Human neutrophil elastase (HNE) is an important target for the development of novel and selective inhibitors to treat inflammatory diseases, especially pulmonary pathologies. Here, we report the synthesis, structure-activity relationship analysis, and biological evaluation of a new series of HNE inhibitors with an isoxazol-5(2H)-one scaffold. The most potent compound (2o) had a good balance between
人嗜中性粒细胞弹性蛋白酶(HNE)是开发新型和选择性抑制剂以治疗炎性疾病(尤其是肺部疾病)的重要目标。在这里,我们报告与异恶唑-5(2H)-一个支架的一系列新的HNE抑制剂的合成,结构-活性关系分析和生物学评估。最有效的化合物(2o)在HNE抑制活性(IC50值= 20 nM)和在水性缓冲液中的化学稳定性(t1 / 2 = 8.9 h)之间具有良好的平衡。反应动力学分析表明,最有效的异恶唑酮衍生物是HNE的可逆竞争性抑制剂。此外,由于化合物2o和2s包含两个羰基(2-N-CO和5-CO)作为对Ser195的可能攻击点,因此,负责亲核攻击的活性位点的氨基酸,