Synthesis, antimicrobial and anti-inflammatory activities of some 1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles and 1,2,4-triazolo[3,4-b][1,3,4]thiadiazines bearing trichlorophenyl moiety
作者:Prakash Karegoudar、D. Jagdeesh Prasad、Mithun Ashok、Manjathuru Mahalinga、Boja Poojary、Bantwal Shivarama Holla
DOI:10.1016/j.ejmech.2007.06.026
日期:2008.4
or with phenacyl bromides afforded two series of fused heterocycles namely 6-(substituted aryl)-3-(2,3,5-trichlorophenyl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadizoles (7) and 6-(substituted aryl)-3-(2,3,5-trichlorophenyl)-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines (8), respectively. The structures of these newly synthesized compounds are characterised by elemental analysis, IR, (1)H NMR and mass spectroscopic
2,3,5-三氯苯甲酸酰肼与二硫化碳和氢氧化钾反应,然后用水合肼处理,得到3-(2,3,5-三氯苯基)-4-氨基-1,2,4-三唑-5 -硫酮(6)。另外,该三唑也可以通过将2,3,5-三氯苯甲酸与硫代碳酰肼融合来合成。(6)在氯氧化磷存在下与各种芳族羧酸缩合,或与苯甲酰溴缩合,得到两个系列的稠合杂环,即6-(取代的芳基)-3-(2,3,5-三氯苯基)-[1,2 ,4]三唑[3,4-b] [1,3,4]噻二唑(7)和6-(取代的芳基)-3-(2,3,5-三氯苯基)-7H- [1,2,4 ] triazolo [3,4-b] [1,3,4]噻二嗪(8)。这些新合成的化合物的结构通过元素分析,IR,(1)H NMR和质谱研究表征。筛选所有合成的化合物的抗微生物和抗炎活性。一些化合物表现出有希望的抗微生物和抗炎活性。