Synthesis, biological evaluation and molecular docking studies of 3-(triazolyl)-coumarin derivatives: Effect on inducible nitric oxide synthase
作者:Hélio A. Stefani、Karina Gueogjan、Flávia Manarin、Sandra H.P. Farsky、Julio Zukerman-Schpector、Ignez Caracelli、Sergio R. Pizano Rodrigues、Marcelo N. Muscará、Simone A. Teixeira、José R. Santin、Isabel D. Machado、Simone M. Bolonheis、Rui Curi、Marco A. Vinolo
DOI:10.1016/j.ejmech.2012.10.010
日期:2012.12
affecting the eNOS activity. The outcome of the docking studies showed that π⋯π interactions with the heme group are important for the iNOS inhibition, thus making compound 3c a promising lead. Moreover, the efficacy of this compound was visualized by the reduced number of neutrophils in the LPS-inflamed subcutaneous tissue. Together, biological and docking data show that triazolyl-substituted coumarins
合成了一系列3-(三唑基)-香豆素,并测试了其作为抗炎药。可以推断这些化合物不会改变LPS与TLR-4或TLR-2的相互作用,因为参与TNF-α分泌和COX-2活性的细胞内途径没有受到影响。但是,这些化合物抑制了iNOS衍生的NO的产生,而不会影响eNOS的活性。对接研究的结果表明,与血红素基团的π⋯π相互作用对于iNOS抑制很重要,因此使化合物3c一个有希望的领导。而且,该化合物的功效通过LPS-发炎的皮下组织中嗜中性粒细胞数目减少而可见。生物学和对接数据共同表明,可以作用于iNOS的三唑基取代的香豆素是一个很好的支架。