Pyrazoles containing thiophene, thienopyrimidine and thienotriazolopyrimidine as COX-2 selective inhibitors: Design, synthesis, in vivo anti-inflammatory activity, docking and in silico chemo-informatic studies
作者:Mai S. El-Shoukrofy、Heba A. Abd El Razik、Omaima M. AboulWafa、Aida E. Bayad、Ibrahim M. El-Ashmawy
DOI:10.1016/j.bioorg.2019.02.036
日期:2019.4
New thiophene and annulated thiophene pyrazole hybrids were synthesized and screened for their in vitro COX-1/COX-2 enzymatic inhibition and in vivo anti-inflammatory activities. All compounds were more COX-2 selective inhibitors than COX-1 with compound 13 exhibiting the highest COX-2 selectivity index. Compounds 3, 6a, 9 and 11 were the most promising in the acute anti-inflammatory assay while compounds
合成了新的噻吩和带环的噻吩吡唑杂化物,并筛选了它们的体外COX-1 / COX-2酶抑制作用和体内抗炎活性。与化合物13表现出最高的COX-2选择性指数相比,所有化合物都是比COX-1更多的COX-2选择性抑制剂。化合物3、6a,9和11在急性抗炎实验中是最有前途的,而化合物3、5、6a,6c,9、10、11和13在亚急性抗炎中发挥了有前途的抗炎活性分析。评价化合物3、6a,6c,9、10和11的ED50值,并且比双氯芬酸钠更有效,而化合物6a,6c和9的活性比塞来昔布更大,其中化合物6a最有效,显示ED50 = 0.033 mmol /公斤。与吲哚美辛,双氯芬酸钠和塞来昔布相比,这些化合物无毒并被证明对胃肠道安全。对COX-2活性位点(PDB代码3LN1)的对接研究表明,化合物3、6a,6c,9、10、11和13的结合模式和能量与塞来昔布相当。化合物3、9、10和11符合Lipinski