Synthesis and antimicrobial activity of 3-(2-thienyl)-4-arylazo-5-hydroxy-5-trifluoromethyl-Δ2-isoxazolines and 3-(2-thienyl)-4-arylazo-5-trifluoromethylisoxazoles
作者:Ranjana Aggarwal、Anshul Bansal、Arpana Mittal
DOI:10.1016/j.jfluchem.2012.10.005
日期:2013.1
antibacterial activity against four pathogenic bacterial strains such as Bacillus subtilis, Staphylococcus aureus (Gram-positive), Pseudomonas fluorescens, Escherichia coli (Gram-negative) and in vitro antifungal activity against two pathogenic fungal strains namely, Candida strain, Saccharomyces cerevisiae. Most of the compounds showed moderate to significant antibacterial activity selectively against
通过芳基重氮盐2与1-(2-噻吩基)-4,4,4-缩合制得的1-(2-噻吩基)-2-芳基偶氮-4,4,4-三氟丁烷-1,3-二酮4三氟甲基-1,3-丁二酮3,与盐酸羟胺处理,得到3-(2-噻吩基)-4-芳基偶氮基-5-羟基-5-三氟甲基- Δ 2 -isoxazolines 5。随后,5-羟基-5-三氟甲基- Δ的脱水2 -isoxazolines 5到相应的3-(2-噻吩基)-4-芳基偶氮-5- trifluoromethylisoxazoles 6通过用乙酸酐或EtOH-H处理它们来实现2 SO 4。化合物的结构是根据IR,NMR(1 H,13 C和19 F),质谱研究和元素分析。筛选了所有化合物的对四种病原细菌菌株的体外抗菌活性,这些菌株如枯草芽孢杆菌,金黄色葡萄球菌(革兰氏阳性),荧光假单胞菌,大肠杆菌(革兰氏阴性)和对两种病原真菌菌株的体外抗真菌活性。 。念珠菌,酿酒酵母;。大多