Synthesis and evaluation of antioxidant activities of novel 1,3,4-oxadiazole and imine containing 1$H$-benzimidazoles
作者:Ayşe Selen ALP、Gülgün KILCIGİL、Elçin Deniz ÖZDAMAR、Tülay ÇOBAN、Binay EKE
DOI:10.3906/kim-1403-44
日期:——
Some novel 2-(substitutedbenzylthio)-5-((2-(4-substitutedphenyl)-1H-benzo[d]imidazol-1-yl)methyl)-1,3,4-oxadiazoles (5--12) and 2-(2-(4-chlorophenyl)-1H-benzo[d]imidazol-1-yl)-N'-(arylmethylene)acetohydrazide derivatives (13--22) were prepared and their in vitro antioxidant properties were investigated by determination of rat liver microsomal NADPH-dependent inhibition of lipid peroxidation (LP) levels and microsomal ethoxyresorufin O-deethylase (EROD) activity. Compound 18 was found to be the most active compound with 100% inhibition on LP level and 92% inhibition on EROD. Compounds 4b, 17, and 19 showed the strongest inhibitory effect (97%) on EROD. The free radical scavenging capacities of the compounds were also tested in vitro determining the interaction of the stable free radical 2,2,diphenyl-1-picrylhydrazyl (DPPH), and compounds 4a and 4b exhibited good antioxidant activities.
一些新型2-(取代苄硫基)-5-((2-(4-取代苯基)-1H-苯并[d]咪唑-1-基)甲基)-1,3,4-噁二唑(5-12)和2-(2-(4-氯苯基)-1H-苯并[d]咪唑-1-基)-N'-(芳亚甲基)乙酰肼衍生物(13-22)被合成,并通过测定大鼠肝微粒体NADPH依赖性脂质过氧化(LP)水平和微粒体乙氧基罗丹明O-去乙基酶(EROD)活性,研究了它们在体外的抗氧化性质。化合物18被发现是最活跃的化合物,对LP水平的抑制达到100%,对EROD的抑制达到92%。化合物4b、17和19显示出对EROD最强的抑制效果(97%)。这些化合物的自由基清除能力也在体外通过测定与稳定自由基2,2-二苯基-1-苦基肼(DPPH)的相互作用进行了测试,化合物4a和4b表现出良好的抗氧化活性。