Heterocycles 39. Synthesis, characterization and evaluation of the anti-inflammatory activity of thiazolo[3,2-b][1,2,4]triazole derivatives bearing pyridin-3/4-yl moiety
作者:Alexandra Toma、Cristina Mogoşan、Laurian Vlase、Denisa Leonte、Valentin Zaharia
DOI:10.1007/s00044-017-1959-x
日期:2017.10
AbstractA series of pyridin-3/4-yl-thiazolo[3,2-b][1,2,4]triazole derivatives (5a–g, 6a–g) were synthesised by Hantzsch condensation of 5-pyridin-3/4-yl-1,2,4-triazole-3-thiol and diverse α-halocarbonyl compounds. Different reaction conditions (pH, temperature, solvent) were investigated for the efficient obtention of the target compounds. Under reflux and acidic conditions, the Hantzsch condensation
摘要通过5-吡啶-3/4的汉茨缩合反应,合成了一系列吡啶-3 / 4-基-噻唑并[3,2-b] [1,2,4]三唑衍生物(5a - g,6a - g)。 -1,2,4-三唑-3-硫醇和各种α-卤代羰基化合物 为了有效地获得目标化合物,研究了不同的反应条件(pH,温度,溶剂)。在回流和酸性条件下,汉茨缩合反应是一步反应。在室温和碱性条件下,可以分离出亚氨基硫醚中间体3 / 4a – g。这些中间体在随后的步骤中通过用浓硫酸处理而环化。评价获得的化合物的抗炎活性。发现三种合成的吡啶基-噻唑并[3,2-b] [1,2,4]三唑衍生物(6c,6d,6f)是良好的消炎药。 图形概要