Synthesis and Antimicrobial Activity of Novel 1-[3-(1,8-Naphthyridin-2-yl)phenyl]-3-arylurea Derivatives
作者:G. Vijaya Bhasker、G.V. Satyanarayana、A. Latha、E. Laxminarayana、M. Thirumala Chary
DOI:10.14233/ajchem.2018.20972
日期:——
2-Aminonicotinaldehyde (1) and 1-(3-nitrophenyl)ethanone (2) react each other in presence of piperidine to form 2-(3-nitrophenyl)-1,8-naphthyridine (3). Compound 3 on reduction with hydrazine hydrate offered 3-(1,8-naphthyridin-2-yl)aniline (4), which on condensation with different arylcarbamates results in formation of 1-[3-(1,8-naphthyridin-2-yl)phenyl]-3-arylurea derivatives (6a-q). The structures of all the compounds are confirmed by IR, NMR and mass spectral data. Further the newly synthesized compounds were evaluated for antimicrobial activity. The results obtained revealed that the tested compounds possess inhibitory effect on the growth of bacterial cells.
2-氨基烟酸醛(1)与1-(3-硝基苯)乙酮(2)在哌啶存在下反应,形成2-(3-硝基苯)-1,8-萘啶(3)。化合物3与肼水合物还原后得到3-(1,8-萘啶-2-基)苯胺(4),随后与不同的芳基氨基甲酸酯缩合,生成1-[3-(1,8-萘啶-2-基)苯基]-3-芳基脲衍生物(6a-q)。所有化合物的结构通过红外光谱(IR)、核磁共振(NMR)和质谱数据得到了确认。此外,合成的新化合物还进行了抗菌活性评估。结果显示,测试的化合物对细菌细胞的生长具有抑制作用。