Synthesis and preliminary evaluation of some pyrazine containing thiazolines and thiazolidinones as antimicrobial agents
作者:Chandrakant G. Bonde、Naresh J. Gaikwad
DOI:10.1016/j.bmc.2004.02.024
日期:2004.5
test compounds and for reference standards. The test compounds showed significant antibacterial and antimycobacterial activity against the microbial strains used, when tested in vitro. In general, pyrazine ring and substituted thiazoline ring are essential for antimicrobial activity. Among the compounds tested, compounds 11, 12 and 40 were found to be most potent. The toxicity of most potent compounds
一系列N'-[3,4-二取代-1,3-噻唑-2(3H)-亚烷基] -2-(吡嗪-2-基氧基)乙酰肼11-66和N'-[(2Z)-使用适当的合成途径合成了3-(4-溴苯基)-4-氧代-1,3-噻唑烷二-2-亚基] -2-(吡嗪-2-基氧基)ac乙酰肼68-74。体外测试了整个测试化合物11-66和68-74对两种不同菌株的革兰氏阴性菌(大肠杆菌和伤寒沙门氏菌),革兰氏阳性菌(金黄色葡萄球菌和枯草芽孢杆菌)的抗菌活性。评估了针对结核分枝杆菌的H(37)Rv菌株的抗分枝杆菌活性。确定了测试化合物和参考标准品的最小抑菌浓度(MIC)。当在体外测试时,测试化合物对所用的微生物菌株显示出显着的抗菌和抗分枝杆菌活性。一般来说,吡嗪环和取代的噻唑啉环对于抗菌活性至关重要。在测试的化合物中,发现化合物11、12和40最有效。使用溶血测定法测定了最有效的化合物11、12和40的毒性,并测定了最小溶血浓度(MHC)。发现受试化合物在250μg/