restored. We describe herein our discovery of one class of such agents, the cinnamamide family of antibiotic potentiators. A hit compound of the class (compound 1) showed modest potentiation of the activity of oxacillin, a penicillin antibiotic, against an MRSA strain. A total of 50 analogues of compound 1 were prepared and screened. Seven of these compounds showed more dramatic potentiation of the antibacterial
耐
甲氧西林金黄色葡萄球菌(MRSA)是全球性的公共卫生威胁。MRSA已进化出一套复杂的生化过程,可动员
生物体抵抗β-内酰胺类抗生素的攻击而产生可诱导的抗性。在药理学上干扰这种机制有可能逆转β-内酰胺耐药性表型,从而恢复对过时抗生素的敏感性。我们在本文中描述了我们发现的一类此类药剂,即抗生素增强剂肉桂酰胺家族。此类命中化合物(化合物1)对
青霉素类抗生素奥沙西林的抗MRSA菌株活性适度增强。总共50个化合物1的类似物准备和筛选。这些化合物中的七个显示出更显着的抗菌活性增强作用,从而使抗生素的最小抑菌浓度(MIC)降低了64到128倍。