Analgesic and antimicrobial studies of some 2,4-dichloro-5-fluorophenyl containing arylidenetriazolothiadiazines
摘要:
2,4-Dichloro-5-fluorophenyl containing 7-arylidenetriazolothiadiazines were obtained by the reaction of 4-amino-3-(2,4-dichloro-5-fluorophenyl)-5-mercapto-1,2,4-triazole with 2,3-dibromo-1,3-diarylpropan-1-ones, and also by the reaction of 4-amino-3-(2,4-dichloro-5-fluorophenyl)-5-mercapto-1,2,4-triazole with alpha-bromopropenones in the presence of a base. The structure of the 7-arylidenetriazolothiadiazines was confirmed by an alternative synthesis. A plausible mechanism for the formation of 7-arylidenetriazolothiadiazines is proposed. All newly synthesized compounds were screened for their analgesic and antimicrobial activities. Compounds bearing 4-chlorophenyl or 3,4-methylenedioxyphenyl moieties at position 7 of the arylidenetriazolothiadiazines showed excellent analgesic activity. Arylidenetriazolothiadiazines carrying a phenyl, 4-chlorophenyl, 4-methylphenyl, 3,4-dimethoxyphenyl, and 2,4-dichlorophenyl moieties at position 7 showed excellent antibacterial and antifungal activities.
Synthesis of a series of 7-arylidene-6-(2,4-dichlorophenyl)-3-aryloxymethyl/anilinomethyl-1,2,4-triazolo[3 ,4-b]-1,3,4-thiadiazines (3) by the condensation of 3-aryl-1-(2,4-dichloro-5-fluorophenyl)-2-bromo-propen-1-one (1) and 4-amino-5-mercapto-3-aryloxymethyl/anilinomethyl-1,2,4-triazoles (2) is described. The newly synthesized compounds were characterized by elemental analysis IR, 1H NMR and mass
一系列7-亚芳基-6-(2,4-二氯苯基)-3-芳氧基甲基/苯胺基甲基-1,2,4-三唑[3,4-b] -1,3,4-噻二嗪的合成(3) 3-芳基-1-(2,4-二氯-5-氟苯基)-2-溴丙烯-1-酮(1)与4-氨基-5-巯基-3-芳氧基甲基/苯胺基甲基-1的缩合反应描述了,2,4-三唑(2)。通过元素分析IR,1 H NMR和质谱数据对新合成的化合物进行了表征。测试了这些化合物对大肠杆菌,金黄色葡萄球菌(Smith),铜绿假单胞菌(Gessard),枯草芽孢杆菌和白色念珠菌的抗菌活性。还筛选了一些新合成的化合物的抗癌活性。其中化合物3m,3o,3q显示出体外抗癌活性。