Synthesis and Antibacterial Evaluation of Some Novel 1,3,4-oxadiazol Derivatives Incorporated with Quinoline Moiety
作者:Priyanka G. Mandhane、Ratnadeep S. Joshi、Wajid Khan、Charansingh H. Gill
DOI:10.5012/jkcs.2011.55.4.656
日期:2011.8.20
5-(3,4,5-Triethoxyphenyl)-1,3,4-oxadiazole-2-thiol 6을 3-(bromomethyl)-2-chloroquinoline or 2-(p-tolyloxy)-3-(bromomethyl) quinoline 4a-j 화합물과 반응시켜서 3-((5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-ylthio)methyl)-2-chloroquinoline 또는 3-((5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-ylthio)methyl)-2-(p-tolyloxy)quinoline 7a-j를 합성하였다. 합성한 화합물들에 대한 항균활성을 측정하였으며, 화합물 7d, 7i 및 7j 은 우수한 활성을 나타내었다.
5-(3,4,5-Triethoxyphenyl)-1,3,4-oxadiazole-2-thiol 6 on treatment with substituted 3-(bromomethyl)-2-chloroquinoline or 2-(p-tolyloxy)-3-(bromomethyl)quinoline 4a-j afforded the corresponding 3-((5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-ylthio)methyl)-2-chloroquinoline or 3-((5-(3,4,5-triethoxyphenyl)-1,3,4-oxadiazol-2-ylthio)methyl)-2-(p-tolyloxy)quinoline 7a-j, in the presence of $K_2CO_3$ and DMF under stirring at ambient temperature. All the synthesized compounds were further screened for their antibacterial activities. Some of our compounds showed excellent antibacterial activities against test organisms and reference standard.
5-(3,4,5-三乙氧基苯基)-1,3,4-噁二唑-2-硫醇6与3-(溴甲基)-2-氯喹啉或2-(对甲苯氧基)-3-(溴甲基)喹啉4a-j反应,合成了3-((5-(3,4,5-三乙氧基苯基)-1,3,4-噁二唑-2-硫代)甲基)-2-氯喹啉或3-((5-(3,4,5-三乙氧基苯基)-1,3,4-噁二唑-2-硫代)甲基)-2-(对甲苯氧基)喹啉7a-j。测定了合成的化合物的抗菌活性,化合物7d、7i和7j表现出优秀的活性。在与取代的3-(溴甲基)-2-氯喹啉或2-(对甲苯氧基)-3-(溴甲基)喹啉4a-j反应时,加入K2CO3和DMF,在室温下搅拌,得到了相应的3-((5-(3,4,5-三乙氧基苯基)-1,3,4-噁二唑-2-硫代)甲基)-2-氯喹啉或3-((5-(3,4-三乙氧基苯基)-1,3,4-噁二唑-2-硫代)甲基)-2-(对甲苯氧基)喹啉7a-j。所有合成的化合物都进一步进行了抗菌活性筛选,一些化合物对测试生物和参考标准表现出极佳的抗菌活性。