Synthesis and evaluation of 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-(2-(4-substitutedpiperazin-1-yl)acetyl)piperazin-1-yl)quinoline-3-carboxylic acid derivatives as anti-tubercular and antibacterial agents
作者:Narva Suresh、Hunsur Nagendra Nagesh、Janupally Renuka、Vikrant Rajput、Rashmi Sharma、Inshad Ali Khan、Chandra Sekhar Kondapalli Venkata Gowri
DOI:10.1016/j.ejmech.2013.10.055
日期:2014.1
A series of twenty two novel 1-cyclopropyl-6-fluoro-4-oxo-7-(4-substitutedpiperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid analogues were synthesized, characterized (1H NMR, 13C NMR and LCMS) and screened for their in vitro anti-tubercular and antibacterial activity. Many of these compounds exhibited MIC values in the range 7.32–136.10 μM against Mycobacterium tuberculosis H37Rv. Eight compounds
合成了一系列22个新颖的1-环丙基-6-氟-4-氧代-7-(4-取代的哌嗪-1-基)-1,4-二氢喹啉-3-羧酸类似物,其特征在于(1 H NMR,13 C NMR和LCMS),并对其体外抗结核和抗菌活性进行了筛选。这些化合物中许多对结核分枝杆菌H 37 Rv的MIC值在7.32–136.10μM范围内。八个化合物进一步进行了细胞毒性研究。此外,筛选了标题化合物对金黄色葡萄球菌ATCC 29213(革兰氏阳性)和大肠杆菌的抗菌活性ATCC 25922(革兰氏阴性)细菌。这些化合物中的许多化合物的MIC值在0.44–34.02μM的范围内。发现化合物3f对两种菌株的活性最高,MIC分别为0.44和0.8μM。通常,标题化合物的抗菌活性更为突出。