Novel salicylanilides from 4,5-dihalogenated salicylic acids: Synthesis, antimicrobial activity and cytotoxicity
作者:Georgios Paraskevopoulos、Sara Monteiro、Rudolf Vosátka、Martin Krátký、Lucie Navrátilová、František Trejtnar、Jiřina Stolaříková、Jarmila Vinšová
DOI:10.1016/j.bmc.2017.01.016
日期:2017.2
Salicylanilides have proved their activity against tuberculosis (TB). One weak electron-withdrawing substituent is favored at the salicylic part, specially Cl or Br atoms at positions 4 or 5. On the other hand, the antimycobacterial activity of salicylanilides is negatively affected when a strong electron-withdrawing substituent (NO2) is present at the same positions. Herein we describe the synthesis
水杨酰苯胺已证明具有抗结核病(TB)的活性。水杨酸部分优选一个弱吸电子取代基,特别是4或5位的Cl或Br原子。另一方面,当强吸电子取代基(NO 2)出现在相同位置。本文中,我们描述了在水杨酸部分具有两个弱吸电子基团(卤素原子)的新型水杨酰苯胺的合成与表征,并将其抗结核活性与其单卤代类似物进行了比较。事实证明,所有二卤代衍生物在非常窄的微摩尔范围内(MIC = 1-4μM)都具有抗结核活性,与它们的活性最高的单卤代类似物相似。更重要的是,对最具活性的最终分子进行了进一步筛选,以抵抗多药耐药菌株,发现它们的生长抑制在0.5–4μM的范围内。