Synthesis of 3-Substituted Pyrazole Derivatives by Mixed Anhydride Method and Study of Their Antibacterial Activities
作者:Sushanta Kumar Mishra、Poulomi Majumdar、Rajani Kanta Behera、Ajaya Kumar Behera
DOI:10.1080/00397911.2013.765483
日期:2014.1.2
Abstract A convenient synthesis of 3-substituted pyrazole derivatives by a mixed anhydride method using i-butylchloroformate and N-methylmorpholine at −20 °C in tetrahydrofuran and study of in vitro antibacterial activities of the prepared compounds against Staphylococcus epidermidis, Bacillus subtilis, Pseudomonas aeruginosa, and Proteus valguris by agar-diffusion method were carried out. The results
摘要 氯甲酸异丁酯和N-甲基吗啉在-20 °C、四氢呋喃中混合酸酐法简便合成3-取代吡唑衍生物,并研究所制备化合物对表皮葡萄球菌、枯草芽孢杆菌、铜绿假单胞菌的体外抗菌活性, 和变形杆菌通过琼脂扩散法进行。结果表明,产品 4a、4b 和 4c 在较高浓度下对所有测试细菌表现出中度至微弱的抑制作用,但 4d 对表皮葡萄球菌 (22 mm) 的抑制效果最佳,而对铜绿假单胞菌 (16 mm) 的抑制作用最差,在最大浓度 (2.5 mg/ml),活性随着浓度的降低而降低。[本文提供补充材料。去出版商'