Synthesis and biological evaluation of 1,3,4-trisubstituted pyrazole analogues as anti-mycobacterial agents
作者:Shankar G. Alegaon、Mita B. Hirpara、K. R. Alagawadi、S. S. Jalalpure、V. P. Rasal、Preeti S. Salve、V. M. Kumbar
DOI:10.1007/s00044-017-1821-1
日期:2017.6
A series of 1,3,4-trisubstituted pyrazole derivatives (3a–f), (4a–r), (5a–f) and (6a–f) have been synthesized and evaluated for their Mycobacterium tuberculosis (MTB) (H37Rv) inhibitory activity. The structures of newly synthesized compounds were characterized by IR, 1H NMR, 13C NMR and mass spectral analysis. Among the thirty six compounds screened for in vitro anti-mycobacterial activity against
合成了一系列1,3,4-三取代的吡唑衍生物(3a–f),(4a–r),(5a–f)和(6a–f)并评估了其结核分枝杆菌(MTB)(H37Rv)抑制活性。通过IR,1 H NMR,13 C NMR和质谱分析表征新合成的化合物的结构。在筛选出的针对MTB的体外抗分枝杆菌活性的36种化合物中,三种化合物3b,3e和3f表现出显着的生长抑制活性,最低抑制浓度为0.78 µg / ml。使用3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑溴化物(MTT)测定法进一步测试所选化合物对正常人皮肤成纤维细胞的细胞毒性活性,并且没有显示出明显的细胞毒性。为了更好地理解与MTB NADH依赖的烯酰-酰基载体蛋白还原酶的假设结合相互作用,进行了分子对接模拟研究。