Structure-activity relationships of pyrazole-4-carbodithioates as antibacterials against methicillin–resistant Staphylococcus aureus
作者:Hiwa Majed、Tatiana Johnston、Celine Kelso、Enrico Monachino、Slobodan Jergic、Nicholas E. Dixon、Eleftherios Mylonakis、Michael J. Kelso
DOI:10.1016/j.bmcl.2018.09.038
日期:2018.12
synthesized, their anti-MRSA structure-activity relationships evaluated and selectivity versus human HKC-8 cells determined. Minimum inhibitory concentrations (MIC) ranged from 0.5 to 64 μg/mL and up to 16-fold selectivity was achieved. The 4-carbodithioate function was found to be essential for activity but non-specific reactivity was ruled out as a contributor to antibacterial action. The study supports
耐甲氧西林的金黄色葡萄球菌(MRSA)是严重的医院获得性感染的主要原因,并且对居民护理设施中的高发病率和高死亡率负责。需要新的抗MRSA药物来对抗目前对抗生素的耐药性上升。我们最近报道了5-羟基-3-甲基-1-苯基-1 H-吡唑-4-碳二硫代酸酯(HMPC)作为一种针对MRSA的新型抑菌剂,似乎通过一种新机制起作用。在这里,合成了HMPC的29个类似物,评估了它们的抗MRSA结构-活性关系,并确定了相对于人HKC-8细胞的选择性。最小抑菌浓度(MIC)为0.5至64μg/ mL,选择性达到16倍。发现4-碳二硫代硫酸盐功能对于活性是必不可少的,但是排除了非特异性反应性作为抗菌作用的贡献者。该研究支持旨在阐明这种有趣的新型抗MRSA药物分子靶标的进一步工作。