A series of novel pyrazole amide derivatives 3a–3p which take TMV PC protein as the target has been designed and synthesized by the reactions of 5-chloro-1-aryl-3-methyl-1H-pyrazole-4-carboxylic acids with 5-amino-1-aryl-1H-pyrazole-4-carbonitriles. All the compounds were characterized by 1H-NMR, mass spectroscopy and elemental analysis. Preliminary bioassays indicated that all the compounds acted against the tobacco mosaic virus (TMV) with different in vivo and in vitro modes at 500 μg/mL and were found to possess promising activity. Especially, compound 3p showed the most potent biological activity against tobacco mosaic virus (TMV) compared to ningnanmycin, and a molecular docking study was performed and the binding model revealed that the pyrazole amide moiety was tightly embedded in the binding sites of TMV PC (PDB code: 2OM3).
一系列新型的
吡唑酰胺衍
生物3a–3p以烟草花叶病毒(TMV)PC蛋白为靶标,通过5-
氯-1-芳基-3-甲基-1H-
吡唑-4-羧酸与5-
氨基-1-芳基-1H-
吡唑-4-
氰化物的反应设计合成。所有化合物均通过1H-NMR、质谱和元素分析进行了表征。初步
生物测定表明,所有化合物在500 μg/mL条件下对烟草花叶病毒(TMV)表现出不同的体内和体外活性,并显示出良好的活性。特别是化合物3p与宁南霉素相比,表现出对烟草花叶病毒(TMV)最强的
生物活性,并进行了分子对接研究,结合模型显示
吡唑酰胺部分紧密嵌入TMV PC的结合位点中(PDB编码:2OM3)。