Synthesis and Evaluation of Bioactivity of Thiazolo[3,2-<i>b</i>]-[1,2,4]-triazoles and Isomeric Thiazolo[2,3-<i>c</i>]-[1,2,4]-triazoles
作者:P. Kumar、A. Kumar、J. K. Makrandi
DOI:10.1002/jhet.1600
日期:2013.7
thiazolo[3,2‐b]‐[1,2,4]‐triazoles 6 and not the isomeric thiazolo[3,2‐b]‐[1,2,4]‐triazoles 4. This has been established by an unequivocal synthesis of 4 through polyphosphoric acid cyclization of 5‐aroylmethylmercapto‐3‐o‐nitrophenyl‐[1,2,4]‐triazole 3. Compound 3 was synthesized by condensation of α‐haloketones with 5‐mercapto‐3‐(o‐nitrophenyl)‐[1,2,4]‐triazole 2, obtained cyclization of 2‐(o‐nitrobenzoyl
2-(邻硝基苯基)-6-芳基噻唑[3,2- b ]-[1,2,4]-三唑4及其异构体3-(邻硝基苯基)-5-芳基噻唑[2,3-从适当的1-(邻硝基苯甲酰基)-3-硫代氨基脲1开始已经获得了c ]-[1,2,4]-三唑6。与α-卤代酮缩合的化合物1得到2-(邻-硝基苯甲酰基)肼基-4-芳基噻唑氢溴酸盐5,经POCl 3环化后得到噻唑[3,2- b ]-[1,2,4]-三唑6而非噻唑[3,2‐ b]异构体]-[1,2,4]-三唑4。这是通过5-磷酸芳基甲基巯基-3-邻硝基苯基[1,2,4]-三唑3的多磷酸环化毫不含糊地合成4而建立的。化合物3是通过将α-卤代酮与5-巯基-3-(邻硝基苯基)-[1,2,4]-三唑2缩合而合成的,获得了2-(邻硝基苯甲酰基)肼基碳硫磺酰胺1与NaOH的环化反应。还评估了某些化合物的抗菌和抗真菌活性。