Design, Synthesis, Characterization and Antimicrobial Evaluation of Some Heterocyclic Condensed Systems with Bridgehead Nitrogen from Thiazolotriazole Class
作者:Stefania-Felicia Barbuceanu、Constantin Draghici、Florica Barbuceanu、Gabriela Bancescu、Gabriel Saramet
DOI:10.1248/cpb.c15-00379
日期:——
In the present study, a series of new heterocyclic condensed systems with bridgehead nitrogen from the thiazolo[3,2-b][1,2,4]triazoles class was synthesized starting from some 4-(4-X-phenylsulfonyl)phenyl)-4H-1,2,4-triazole-3-thioles 1a-c (X=H, Cl, Br). The intermediates of S-alkylated 1,2,4-triazoles, 2-(5-(4-(4-X-phenylsulfonyl)phenyl)-2H-1,2,4-triazol-3-ylthio)-1-(4-fluorophenyl)ethanones 2a-c,
在本研究中,从一些4-(4-X-苯基磺酰基)苯基开始合成了一系列新的噻唑并[3,2-b] [1,2,4]三唑类含桥头氮的杂环缩合系统-4H-1,2,4-三唑-3-硫醇1a-c(X = H,Cl,Br)。S-烷基化的1,2,4-三唑,2-(5-(4-(4-X-苯基磺酰基)苯基)-2H-1,2,4-三唑-3-基硫基)-1-(通过用2-溴-4′-氟苯乙酮处理三唑1a-c获得4-氟苯基)乙炔2a-c。通过将S-烷基化的环化反应获得2-(4-(4-X-苯磺酰基)苯基)-6-(4-氟苯基)噻唑并[3,2-b] [1,2,4]三唑3a-c。 1,2,4-三唑2a-c在0°C的硫酸介质中。用于合成2-(4-(4-X-苯磺酰基)苯基)-5-(4-氟亚苄基)-噻唑并[3,2-b] [1,2,4]三唑-6(5H)-在图4a-c中,将三唑1a-c用4-氟苯甲醛处理,氯乙酸和无水乙酸钠,在乙酸和乙酸酐的存在下。新合