Synthesis and evaluation of 2-(5-(aryl)-1,3,4-oxadiazol-2-ylthio)-N-(3-(trifluoromethyl)phenyl)acetamides and N-(4-chloro-3-fluorophenyl)-2-(5-(aryl)-1,3,4-oxadiazol-2-ylthio)acetamides as antimicrobial agents
作者:KALPESH PARIKH、DEEPKUMAR JOSHI
DOI:10.1007/s12039-014-0625-9
日期:2014.5
the fact that the compounds 5a and g bearing a maximum number of fluorine atoms showed the highest potency among the synthesized compounds against the broad panel of bacterial and fungal strains. The presence of fluorine atom at the meta position in the phenyl ring of final derivatives (5a–t) brought about an enhancement of their antimicrobial properties to a notable extent. Two novel series of oxadiazole
已经将一系列2-巯基-5-苯基-1,3,4-恶二唑衍生物与在间位具有氟原子的不同苯基乙酰胺衍生物缩合。导致形成2-(5-芳基-1,3,4-恶二唑-2-基硫基)-N-(3-(三氟甲基)苯基)乙酰胺(5a–j)和N-(4-氯-3 -氟苯基)-2-(5-芳基-1,3,4-恶二唑-2-基硫基)乙酰胺(5k-t)衍生物。通过肉汤稀释法对革兰氏阳性菌(金黄色葡萄球菌和粪肠球菌),革兰氏阴性菌(5a–t)的MIC(最低抑菌浓度)值进行评估,得出其抗菌性能( MIC )。大肠杆菌和铜绿假单胞菌和真菌(白色念珠菌和黑曲霉)。抗菌活性的结果(以μg / ml为单位)表明,具有最大氟原子数的化合物5a和g在合成的化合物中对各种细菌和真菌菌株均显示出最高的效力。最终衍生物(5a–t)苯环的间位氟原子的存在显着增强了其抗菌性能。 合成了两个新颖的含恶二唑的含氟取代乙酰胺系列化合物,并使用不同的光谱技术进行了表征。体