Synthesis of some novel heterocyclic compounds derived from diflunisal hydrazide as potential anti-infective and anti-inflammatory agents
作者:Ş. Güniz Küçükgüzel、İlkay Küçükgüzel、Esra Tatar、Sevim Rollas、Fikrettin Şahin、Medine Güllüce、Erik De Clercq、Levent Kabasakal
DOI:10.1016/j.ejmech.2006.12.038
日期:2007.7
4-oxadiazoles (6a-g) have been synthesized. Twenty-one of the newly synthesized compounds were tested against various bacteria, fungi, yeast species and virus. In addition, we have replaced the carboxylic acid group of diflunisal with heterocycles and the anti-inflammatory activity of heterocycles reported here. Compound (5d) showed activity against Escherichia coli A1 and Streptococcus pyogenes ATCC-176
3个新颖的2',4'-二氟-4-羟基联苯-3-羧酸衍生物系列,即4-取代的1,2,4,3-三唑啉-3-硫酮(4a-g);已经合成了2-取代的1,3,4-噻二唑(5a-g)和2-取代的1,3,4-恶二唑(6a-g)。测试了二十一种新合成的化合物对各种细菌,真菌,酵母菌和病毒的抵抗力。此外,我们已用杂环取代了双氟尼醛的羧酸基团,并报道了杂环的抗炎活性。化合物(5d)以31.25μg/ mL的浓度显示出对大肠杆菌A1和化脓性链球菌ATCC-176的活性,而已发现用作标准药物的头孢吡肟对上述细菌的活性较低。化合物(4b)在浓度为31.25和15.25 microg / mL时对杂色曲霉和红毛癣菌表现出活性,而已发现用作标准品的两性霉素B对酵母和真菌的活性较低。在对Sindbis病毒的第2位具有甲基的1,3,4-噻二唑衍生物(5a)中,发现最高的抗病毒活性为9.6 microg / mL。化合物(4c)表现出最高的抗炎活性(73