Synthesis and antimicrobial studies of novel methylene bridged benzisoxazolyl imidazo[2,1-b][1,3,4]thiadiazole derivatives
作者:Ravi S. Lamani、Nitinkumar S. Shetty、Ravindra R. Kamble、Imtiyaz Ahmed M. Khazi
DOI:10.1016/j.ejmech.2008.12.019
日期:2009.7
benzisoxazolyl-3-acetic acid and thiosemicarbazide. Reaction of 3 with bromine in glacial acetic acid in the presence of anhydrous sodium acetate yielded the corresponding 5-bromo derivatives (4a–f). While compound 3 furnished the 5-nitroso derivatives (5a–f) on refluxing with sodium nitrite solution. Thiocyanato derivatives (6a–f) were obtained by treating the imidazothiadiazole 3 with bromine and potassium
新型亚甲基桥联苯并异恶唑基咪唑并[2,1- b ] [1,3,4]噻二唑(3a – f)是由苯并异恶唑基-3-乙酸和硫代氨基脲合成的。在无水乙酸钠存在下,3与溴在冰醋酸中的反应生成相应的5-溴衍生物(4a – f)。当化合物3与亚硝酸钠溶液回流时,提供了5-亚硝基衍生物(5a – f)。通过处理咪唑并噻二唑3获得硫氰酸根衍生物(6a – f)。在室温下在冰醋酸中加入溴和硫氰酸钾。通过IR,NMR,质量和元素分析证实了新合成的化合物的结构。筛选所有化合物的抗菌和抗真菌活性。一些化合物显示出非常好的抗菌和抗真菌活性。