Synthesis of Novel 8-Hydroxyquinoline Derivatives through Mannich Reaction and their Biological Evaluation as Potential Immunomodulatory Agents
作者:Shaheen Faizi、Tahira Sarfaraz、Saima Sumbul、Almas Jabeen、Sobia A. Halim、Mohammad A. Mesaik、Zaheer Ul-Haq
DOI:10.2174/1573406415666190626121650
日期:2020.5.20
BACKGROUND In continuation of our work on Mannich reaction on 8-hydroxyquinoline, fifteen different combinations of aromatic aldehydes and aniline were subjected to Mannich reaction from which twelve products (eight Mannich bases, two imines and two intramolecularly cyclized products with benzofuranone skeleton) were obtained. Among them six compounds (1, 2, 6, 8, 9 and 12) are the new compounds. The
背景技术在继续我们对8-羟基喹啉的曼尼希反应的工作中,对15种不同的芳香醛和苯胺组合进行了曼尼希反应,由此得到了十二种产物(八种曼尼希碱,两个亚胺和两个具有苯并呋喃酮骨架的分子内环化产物)。其中六个化合物(1、2、6、8、9和12)是新化合物。化合物的结构通过UV,IR,MS和1H NMR表征。方法以25 µg / mL的浓度测试化合物对促炎细胞因子肿瘤坏死因子-α(TNF-α)和白细胞介素-1β(IL-1β)的抑制作用。细胞因子由PMA分化24小时,LPS刺激4小时的THP-1细胞产生,并通过ELISA技术分析上清液。结果与讨论化合物1-5,8和9抑制了TNF-α和IL-1β的产生。化合物1、3和8分别有效抑制TNF-α,抑制作用分别为71%,71%和83%。化合物1和8分别以64%和78%抑制显着抑制IL-1β的产生。结论化合物1和8显着抑制IL-1β的产生,分别抑制64%和78%。值