Synthesis and Antimycobacterial Evaluation of N-(E)-heteroaromaticpyrazine-2-carbohydrazide Derivatives
作者:C. H. S. Lima、M. G. M. O. Henriques、A. L. P. Candea、M. C. S. Lourenco、F. A. F. M. Bezerra、M. L. Ferreira、C. R. Kaiser、M. V. N. de Souza
DOI:10.2174/157340611795564303
日期:2011.5.1
A series of nine N'-(E)-heteroaromatic-pyrazine-2-carbohydrazide derivatives (5a-f and 6a-c) have been synthesized and evaluated against M. tuberculosis ATCC 27294 using the micro plate Alamar Blue assay (MABA), being the activities expressed as the minimum inhibitory concentration (MIC) in μg/ml. Compounds 5a and 5f exhibited potent activities (3.12 and 50μg/mL, respectively) when compared to the first line drug pyrazinamide (MIC 100 μg/mL). Afterwards, these compounds were evaluated for their cell viabilities in non-infected and infected macrophages with Mycobaterium bovis Bacillus Calmette-Guerin (BCG) and 5f was not cytotoxic to host cells in the effective concentration to inhibit the growth of M. tuberculosis.
合成了一系列九种 N'-(E)-异芳香族吡嗪-2-甲酰肼衍生物(5a-f 和 6a-c),并使用微板阿拉玛蓝检测法(MABA)对结核杆菌 ATCC 27294 进行了评估,活性以最小抑菌浓度(MIC)表示,单位为微克/毫升。与一线药物吡嗪酰胺(MIC 100 μg/mL)相比,化合物 5a 和 5f 表现出了强效活性(分别为 3.12 和 50 μg/mL)。随后,对这些化合物在未感染和感染了牛分枝杆菌卡介苗(BCG)的巨噬细胞中的细胞活力进行了评估,在抑制结核杆菌生长的有效浓度下,5f 对宿主细胞没有细胞毒性。