A series of N-(pyridin-4-yl) salicylamides derivatives were prepared through acylation of the corresponding acetylsalicyloyl chlorides with substituted 4-amino-pyridines. These compounds were evaluated in vitro for antimycobacterial activities against Mycobacterium tuberculosis (TB) and Mycobacterium avium (A) by the minimum inhibitory concentrations (MIC) values. Eight of the compounds exhibited lower MIC against A than the one of isoniazide. Meanwhile, four of the compounds exhibited good anti-TB activity compared to isoniazide. Antimycobacterial activities of N-(pyridin-4-yl) salicylamides were influenced by the balance between hydrophobicity and electron withdrawing substituent effects on the phenyl and pyridine ring. These studies show that the compounds might serve as prospective wide-spectrum antimycobacterial substances.
一系列N-(
吡啶-4-基)
水杨
酰胺衍
生物通过相应的乙酰
水杨酰氯与取代的4-
氨基吡啶的酰化反应制备而成。这些化合物通过最低抑制浓度(MIC)值在体外评估了对结核分枝杆菌(TB)和鸟分枝杆菌(A)的抗分枝杆菌活性。其中八种化合物的MIC值对A型菌低于异烟
肼,同时有四种化合物表现出较异烟
肼更强的抗TB活性。N-(
吡啶-4-基)
水杨
酰胺的抗分枝杆菌活性受到
苯环和
吡啶环上的疏
水性和电子吸引取代基效应之间平衡的影响。这些研究表明,这些化合物可能作为有前景的广谱抗分枝杆菌药物。