Synthesis, urease inhibition, antioxidant and antibacterial studies of some 4-amino-5-aryl-3H-1,2,4-triazole-3-thiones and their 3,6-disubstituted 1,2,4-triazolo[3,4-b]1,3,4-thiadiazole derivatives
作者:Muhammad Hanif、Muhammad Saleem、Muhammad Tahir Hussain、Nasim Hasan Rama、Sumera Zaib、Muhammad Adil M. Aslam、Peter G. Jones、Jamshed Iqbal
DOI:10.1590/s0103-50532012000500010
日期:——
salts in dilute aqueous solution of hydrazine hydrate. These salts were formed by the reaction of acid hydrazides and carbon disulfide in methanolic potassium hydroxide solution at 0-5 °C. 4-Amino-5-aryl-3H-1,2,4-triazole-3-thiones were condensed with different substituted aromatic acids to yield 3,6-disubstituted-1,2,4-triazolo[3,4-b]1,3,4-thiadiazoles. The structures of the synthesized compounds were
通过将肼基碳二硫代钾盐在水合肼的稀水溶液中回流,合成了一系列新的带有各种甲氧基苄基和甲氧基苯乙基的4-氨基-5-芳基-3H-1,2,4-三唑-3-硫酮。这些盐是通过酰肼与二硫化碳在甲醇氢氧化钾溶液中于0-5°C反应形成的。将4-氨基-5-芳基-3H-1,2,4-三唑-3-硫酮与不同的取代芳族酸缩合,生成3,6-二取代-1,2,4-三唑[3,4-b] 1,3,4-噻二唑。合成的化合物的结构通过红外(IR),1H和13C核磁共振(NMR),元素分析和质谱(MS)研究进行了表征。筛选所有合成的化合物的脲酶抑制作用,抗氧化剂和抗菌活性。一些化合物显示出优异的脲酶抑制活性,超过了标准药物。其他人表现出强大的抗氧化活性。与标准药物相比,所有化合物均显示出显着的抗菌活性。