已合成了咪唑/苯并三唑类似物取代的哌啶-4-一衍生物(17-26)。通过IR,1 H NMR,13 C NMR和质谱分析对它们的化学结构进行表征。另外,还已经记录了化合物21和23的单晶X射线衍射。合成的化合物具有针对病原性微生物菌株的体外抗菌和抗真菌活性。结果指出,针对枯草芽孢杆菌的化合物19和24和针对大肠杆菌的化合物20和24 探索了优异的抑制活性。
Design and synthesis of novel piperazine unit condensed 2,6-diarylpiperidin-4-one derivatives as antituberculosis and antimicrobial agents
摘要:
A new series of 1-[2-(4-ethoxycarbonylpiperazine-1-yl)acetyl]-2,6-diarylpiperidin-4-ones (3a-3j) has been synthesized by conventional method and were characterized by IR, elemental analysis, mass spectral, 1 H NMR, C-13 NMR, and single crystal X-ray diffraction analysis. The synthesized compounds were evaluated for their antituberculosis activity against Mycobacterium tuberculosis H37Rv (ATCC-27294) and also its antimicrobial activity were examined against five familiar bacterial and fungal strains. Among the synthesized compounds, compounds 3e-3j exhibit higher inhibition potency (16 mu g/ml) against M. tuberculosis H37Rv. Furthermore, compounds containing fluoro substituent in the phenyl ring at C-2 and C-6 positions of the piperidin-4-one motif (compounds 3c, 3d, and 3i) exerted better antibacterial and antifungal activity than the other phenyl-substituted compounds.