Design, synthesis and analgesic/anti-inflammatory evaluation of novel diarylthiazole and diarylimidazole derivatives towards selective COX-1 inhibitors with better gastric profile
作者:Ahmed H. Abdelazeem、Mohammed T. El-Saadi、Asmaa G. Safi El-Din、Hany A. Omar、Samir M. El-Moghazy
DOI:10.1016/j.bmc.2016.11.037
日期:2017.1
cause of non-steroidal anti-inflammatory drugs (NSAIDs)-induced gastric ulcer. Recent studies disproved this belief and showed that the gastric tissues vulnerability is not solely connected to COX-1 inhibition. This work aimed at exploring and rationalizing the differential analgesic and anti-inflammatory activities of novel selective COX-1 inhibitors with improved gastric profile. Two novel series of
抑制胃环氧合酶1(COX-1)酶被认为是非甾体类抗炎药(NSAIDs)诱导的胃溃疡的主要原因。最近的研究反驳了这一信念,并表明胃组织的脆弱性并不仅仅与COX-1抑制有关。这项工作旨在探索和合理化具有改善的胃部特征的新型选择性COX-1抑制剂的镇痛和抗炎活性。设计了两个新颖的4,5-二芳基噻唑和二芳基咪唑系列,类似于缺乏胃损伤作用的选择性COX-1抑制剂(mofezolac和FR122047)合成。在体外和体内对新化合物的COXs抑制活性进行了评估具有抗炎和止痛的潜力。四种化合物;具有羧酸基团的二苯基噻唑甘氨酸衍生物(15a,15b)和二苯基咪唑基乙酸衍生物(19a,19b)显示出显着的活性和对COX-1的选择性而对COX-2具有选择性。在这些化合物中,(4,5-双(4-甲氧基苯基)噻唑-2-基)甘氨酸15b是最有效的抗COX-1化合物,其最大半抑制浓度(IC 50)为0.32μM,选择性指数为(