New 1,2,4-triazole/pyrazole hybrids linked to oxime moiety as nitric oxide donor celecoxib analogs: Synthesis, cyclooxygenase inhibition anti-inflammatory, ulcerogenicity, anti-proliferative activities, apoptosis, molecular modeling and nitric oxide release studies
作者:Wael A.A. Fadaly、Yaseen A.M.M. Elshaier、Emad H.M. Hassanein、Khaled R.A. Abdellatif
DOI:10.1016/j.bioorg.2020.103752
日期:2020.5
Two new series of hybrid structures 16a-f and 19a-f containing 1,2,4-triazole moiety, pyrazole core with COX-2 pharmacophore and oxime as NO donor moiety were designed, synthesized and evaluated for anti-inflammatory, cytotoxic activities and NO release. All compounds were more selective for COX-2 isozyme especially the sulphamoyl derivatives (16b, 16e, 19b and 19e) had COX-2 selectivity indexes (S
设计,合成并评估了两个新系列的杂合结构16a-f和19a-f,它们分别包含1,2,4-三唑部分,吡唑核心以及COX-2药效团和肟作为NO供体部分,并评估了其的抗炎,细胞毒性活性和没有释放。与塞来昔布(SI = 8.68)相比,所有化合物对COX-2同工酶的选择性更高,尤其是氨磺酰基衍生物(16b,16e,19b和19e)的COX-2选择性指数分别为(SI = 9.78、8.57、10.78和10.47)。 。同样,16b,16e,19b和19e是最有效的抗炎衍生物,ED50 =塞来昔布(ED50 = 76.09μmol/ kg),ED50 = 46.98-54.45μmol/ kg。同样,与布洛芬(溃疡指数= 20.25)相比,16b,16e,19b和19e的致溃疡性(溃疡指数= 2.79-3.95)明显更少,与塞来昔布(溃疡指数= 2.93)相当。关于抗癌活性,大多数目标衍生物16a-f