Synthesis of some novel 3,4,5-trisubstituted triazole derivatives bearing quinoline ring and evaluation of their antimicrobial activity
作者:Leyla Yurttaş、Aslıhan Kubilay、Asaf Evrim Evren、İpek Kısacık、Hülya Karaca Gençer
DOI:10.1080/10426507.2020.1756808
日期:2020.9.1
Abstract Some new 3,4,5-trisubstituted 1,2,4-triazole derivatives were synthesized and studied for their antimicrobial activity. The lead compounds were obtained starting from 8-hydroxyquinoline and ethyl 2-chloroacetate. The obtained ester compound (1) first reacted with hydrazine hydrate (2) then with phenyl isothiocyanate (3). Ring closure by KOH led to 3-mercapto-1,2,4-triazole derivative (4).
摘要 合成了一些新的3,4,5-三取代1,2,4-三唑衍生物并研究了它们的抗菌活性。先导化合物是从 8-羟基喹啉和 2-氯乙酸乙酯开始获得的。所得酯化合物(1)首先与水合肼(2)反应,然后与异硫氰酸苯酯(3)反应。KOH 闭环产生 3-巯基-1,2,4-三唑衍生物 (4)。最后,它与 2-氯-N-(取代(苯并)/噻唑)乙酰胺衍生物反应得到最终化合物(5a-j)。通过1H NMR和13C NMR光谱和高分辨率质谱技术和元素分析进行化合物的结构解析。研究了合成的化合物对七种细菌和四种真菌的抗菌活性。作为活动研究的结果,观察到化合物 N-(6-nitrobenzothiazol-2-yl)-2-[[4-phenyl-5-((quinolin-8-yloxy)methyl)-4H-1,2,4-triazol-3-基]硫代]乙酰胺(5a)和N-(6-氟苯并噻唑-2-基)-2-[[4-苯基-5-((喹啉-8-基氧基)甲基)-4H-1