Synthesis and biological evaluation of new 3,5-di(trifluoromethyl)-1,2,4-triazolesulfonylurea and thiourea derivatives as antidiabetic and antimicrobial agents
作者:Hassan M. Faidallah、Khalid A. Khan、Abdullah M. Asiri
DOI:10.1016/j.jfluchem.2011.06.014
日期:2011.11
antimicrobial agents. The chemistry involves the condensation of sulfanilamide derivatives 1 with trifluoroacetic anhydride to give N-di(trifluoroacetyl)sulfonamides 2 which upon reaction with hydrazine hydrate afforded the corresponding triazole derivatives 3. Reaction of triazole derivative 3a with isocyanates and isothiocyanates gave the corresponding ureas 4 and thioureas 5. Cyclization of thiourea derivatives
氟化-1,2,4-三唑3和苯脲和硫脲衍生物,以及它们的环状sulfonylthioureas 4 - 10,制备抗微生物剂。化学过程涉及将磺胺衍生物1与三氟乙酸酐缩合,生成N-二(三氟乙酰基)磺酰胺2,该二酰胺与水合肼反应,得到相应的三唑衍生物3。三唑衍生物3a与异氰酸酯和异硫氰酸酯反应,得到相应的脲4和硫脲5。用溴乙酸乙酯,1,2-二碘乙烷,硫脲衍生物的环化的草酸二乙酯和α溴代苯乙酮衍生物,得到相应的4- oxothiazolidines 7,噻唑烷8,4,5- dioxothiazolidines 9和噻唑啉10。所制备化合物的初步生物学筛选显示出显着的抗微生物和温和的抗糖尿病活性。