New phenolic cinnamic acid derivatives as selective COX-2 inhibitors. Design, synthesis, biological activity and structure-activity relationships
作者:Daniela Ribeiro、Carina Proença、Carla Varela、João Janela、Elisiário J. Tavares da Silva、Eduarda Fernandes、Fernanda M.F. Roleira
DOI:10.1016/j.bioorg.2019.103179
日期:2019.10
potent anti-inflammatory agents, with fewer gastrointestinal side effects. In this work, a new series of cinnamic acid derivatives, namely hexylamides, have been designed, synthesized and evaluated in human blood for their inhibitory activity of COX-1 and COX-2 enzymes. From this, new structure-activity relationships were built, showing that phenolic hydroxyl groups are essential for both COX-1 and COX-2
寻找有效的消炎药且胃肠道副作用较少时,选择性抑制环氧合酶(COX)-2酶是一项重要成就。在这项工作中,已经设计,合成并评估了一系列新的肉桂酸衍生物,即己酰胺,在人血中对COX-1和COX-2酶的抑制活性。由此,建立了新的结构-活性关系,表明酚羟基对于抑制COX-1和COX-2都是必不可少的。此外,苯环中大量疏水性二叔丁基的存在强烈地促进了选择性COX-2的抑制。另外,与理论对数P相关已经进行了研究,表明亲脂性对于抑制COX-2特别重要。此外,已经进行了血浆蛋白结合(PPB)预测,揭示了PPB似乎对所研究化合物的活性没有影响。在整个研究中,发现了有效的COX-2选择性抑制剂,即化合物9(IC 50 = 3.0±0.3μM),10(IC 50 = 2.4±0.6μM)和23(IC 50 = 1.09±0.09μM)。那些被认为是潜在的非常规抗甾体抗炎药,有望成为进一步优化的起点命中化合物。