New 7-[4-(4-(un)Substituted)piperazine-1-carbonyl]- piperazin-1-yl] Derivatives of Fluoroquinolone: Synthesis and Antimicrobial Evaluation
作者:Po-Ting Chen、Wen-Po Lin、An-Rong Lee、Ming-Kuan Hu
DOI:10.3390/molecules18077557
日期:——
Fluoroquinolones have been a class of important synthetic antimicrobial agents broadly and effectively used in clinic for infectious diseases. In this study, the synthesis of a range of fluoroquinolone derivatives with 4-(carbopiperazin-1-yl)piperazinyl moieties at the C7 position and their inhibition of bacterial pathogens commonly disseminated in hospital environment were described. The results indicated that a 7-[4-(4-(benzoyl)carbopiperazin-1-yl)]piperazinyl derivative 5h and two 7-[4-(4- (benzenesulfonyl)carbopiperazin-1-yl)]piperazinyl derivatives 5k and 5l showed more promising growth inhibition of ciprofloxacin-resistant P. aeruginosa (CRPA) with MIC values as low as 16 mg/mL which is 16-fold more potent than ciprofloxacin, while most of other derivatives maintained potency against methicillin-resistant Staphylococcus aureus (MRSA).
氟喹诺酮是一类重要的合成抗菌药物,广泛有效地用于治疗临床感染疾病。本研究描述了一系列C7位带有4-(氨基甲酰基哌嗪-1-基)哌嗪基团的氟喹诺酮衍生物的合成及其对医院环境中常见传播的细菌病原体的抑制作用。结果表明,7-[4-(4-(苯甲酰基)氨基甲酰基哌嗪-1-基)]哌嗪基衍生物5h和两个7-[4-(4-(苯磺酰基)氨基甲酰基哌嗪-1-基)]哌嗪基衍生物5k和5l对耐环丙沙星的铜绿假单胞菌(CRPA)显示出更有希望的生长抑制作用,其最低抑制浓度(MIC)低至16 mg/mL,比环丙沙星强16倍,而大多数其他衍生物对耐甲氧西林的金黄色葡萄球菌(MRSA)保持了活性。