Novel 2-(benzo[d]thiazol-2-yl)-1-(3-methyl-5-substituted-phenyl-4,5-dihydropyrazol-1-yl)ethanone Derivatives: Synthesis and Antibacterial Activity
作者:Chun-Xiu Pan、Jun Li、Xin-Hua Liu
DOI:10.2174/157018011795514212
日期:2011.6.1
A series of novel 2-(benzo[d]thiazol-2-yl)-1-(3-methyl-5-substituted-phenyl-4,5-dihydropyrazol-1-yl)ethanone derivatives were synthesized and characterized by NMR, ESI-MS. Biological activity tests results show that compounds 4a, 4b, 4d and 4g displayed activity with MIC of 1.562 μg/mL against B. subtilis ATCC 6633, compound 4d displayed significant activity with MIC of 1.562 μg/mL against S. aureus
合成了一系列新型的2-(苯并[d]噻唑-2-基)-1-(3-甲基-5-取代-苯基-4,5-二氢吡唑-1-基)乙酮衍生物,并进行了NMR表征, ESI-MS。生物活性测试结果表明,化合物4a,4b,4d和4g对枯草芽孢杆菌ATCC 6633的活性为MIC为1.562μg/ mL,化合物4d对金黄色葡萄球菌ATCC 6538的活性为MIC为1.562μg/ mL。具有有效抗菌活性的4a强烈抑制金黄色葡萄球菌DNA促旋酶和枯草芽孢杆菌DNA促旋酶,对金黄色葡萄球菌DNA促旋酶和枯草芽孢杆菌DNA促旋酶的IC50为0.5μg/ ml。