Design, synthesis, and molecular docking study of new piperazine derivative as potential antimicrobial agents

Bioorg Chem. 2019 Nov:92:103217. doi: 10.1016/j.bioorg.2019.103217. Epub 2019 Aug 26.

Abstract

Herein, we describe the successful design and synthesis of seventeen new 1,4-diazinanes, compounds commonly known as piperazines. This group of piperazine derivatives (3a-q) were fully characterized by 1H NMR, 13C NMR, FT-IR, and LCMS spectral techniques. The molecular structure of piperazine derivative (3h) was further established by single crystal X-ray diffraction analysis. All reported compounds were evaluated for their antibacterial and antifungal potential against five bacterial (Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa) and two fungal strains (Candida albicans and Cryptococcus neoformans). The complete bacterial screening results are provided. As documented, piperazine derivative 3e performed the best against these bacteria. Additionally, data obtained during molecular docking studies are very encouraging with respect to potential utilization of these compounds to help overcome microbe resistance to pharmaceutical drugs, as explicitly noted in this manuscript.

Keywords: Antimicrobial activity; Characterization; Molecular docking; Piperazine derivatives; Synthesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acinetobacter baumannii / drug effects
  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Antifungal Agents / chemical synthesis
  • Antifungal Agents / chemistry
  • Antifungal Agents / pharmacology*
  • Candida albicans / drug effects
  • Cryptococcus neoformans / drug effects
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Escherichia coli / drug effects
  • Klebsiella pneumoniae / drug effects
  • Microbial Sensitivity Tests
  • Molecular Docking Simulation*
  • Molecular Structure
  • Piperazine / chemical synthesis
  • Piperazine / chemistry
  • Piperazine / pharmacology*
  • Pseudomonas aeruginosa / drug effects
  • Staphylococcus aureus / drug effects
  • Structure-Activity Relationship

Substances

  • Anti-Bacterial Agents
  • Antifungal Agents
  • Piperazine