Synthesis of some new 1,3,4-thiadiazol-2-ylmethyl-1,2,4-triazole derivatives and investigation of their antimicrobial activities
作者:Ahmet Demirbas、Deniz Sahin、Neslihan Demirbas、Sengül Alpay Karaoglu
DOI:10.1016/j.ejmech.2008.12.005
日期:2009.7
compound 3b was converted to methylated derivative, 4. The basic treatment of carbothioamide derivatives, 2a–c, afforded 4-amino-2-[(4-aryl-5-sulphanyl-4H-1,2,4-triazol-3-yl)methyl]-5-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-ones (5a–c). The alkylation reactions of compounds 4H-1,2,4-triazol-3-ylmethyl-5-(4-methylphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-one derivatives (5a–c) were performed by using methyl
4-氨基-2 - [(5-芳基氨基-4,5-二氢-1,3,4-噻二唑-2-基)甲基] -5-(4-甲基苯基)-2,4-二氢-3- ħ - 1,2,4-三唑-3-酮(3A - ç)在酸性介质中通过形成2得到- [(4-氨基-3-芳基-5-氧代-4,5-二氢- 1 H ^ - 1,2,4-三唑-1-基)乙酰基] -N-芳基肼甲硫基酰胺(2a – c),然后将化合物3b转化为甲基化衍生物4。对碳硫酰胺衍生物2a – c进行基本处理,得到4-氨基-2-[((4-芳基-5-硫磺酰基-4 H -1,2,4-三唑-3-基)甲基] -5-(4 -甲基苯基)-2,4-二氢-3 H-1,2,4-三唑-3-酮(5a – c)。化合物4 H -1,2,4-三唑-3-基甲基-5-(4-甲基苯基)-2,4-二氢-3 H -1,2,4-三唑-3-酮衍生物的烷基化反应(5a – c)是在甲醇钠存在下使用甲基碘或溴化乙锭进行的,而相同的中间体5a