Synthesis and biological evaluation of new Mannich and Schiff bases containing 1,2,4-triazole and 1,3,4-oxadiazole nucleus
作者:Sule Ceylan
DOI:10.1007/s00044-016-1640-9
日期:2016.9
nicotinic acid hydrazide were converted to the corresponding Mannich bases (3a–c) by the reaction with several heterocyclic amines in the presence of formaldehyde. 1,2,4-Triazole-3-thiole, (4) prepared from 1,3,4-oxadiazole-2-thiole (2) was converted to the corresponding Mannich bases (5a–e) by several steps. The synthesis of Schiff bases (6a–d) was performed from the reaction of the corresponding triazol-3-thioles
由烟酸酰肼得到的5-(吡啶-3-基)-1,3,4-恶二唑-2-硫醇2,通过与一些杂环胺反应,转化为相应的曼尼希碱(3a – c)。甲醛的存在。由1,3,4-恶二唑-2-硫醇(2)制备的1,2,4-三唑-3-硫醇(4)通过几个步骤转化为相应的曼尼希碱(5a – e)。Schiff碱(6a - d)的合成是通过相应的三唑-3-硫醇与各种芳香醛的反应进行的。含有1,2,4-三唑6c和6d用吗啉或硫吗啉生成相应的曼尼希碱7a,b和8a,b。筛选合成的化合物的抗微生物,抗脂肪酶和抗脲酶活性。发现其中一些具有良好的中度抗微生物,抗脲酶和/或抗脂肪酶活性。