Emerging Piperazine Derivatives: Synthesis, Characterization, Biological Evaluation, Molecular Docking, and ADMET In...

Area of Science:

• Medicinal Chemistry
• Drug Discovery
• Antimicrobial Research

Background:

• Antimicrobial resistance (AMR) is a growing global health threat.
• Pathogenic bacteria like E. coli and S. aureus are increasingly resistant to antibiotics.
• Piperazine scaffolds are valuable in drug design for their versatility.

Purpose of the Study:

• To synthesize and evaluate novel piperazine derivatives for antibacterial activity.
• To investigate the structure-activity relationships (SAR) of these compounds.
• To identify lead compounds with potential as new antibacterial therapeutics.

Main Methods:

• Synthesis of a new series of piperazine derivatives.
• In vitro antibacterial assays using the cup-plate method.
• Molecular docking and in silico ADME/Tox analyses for mechanism and safety prediction.

Main Results:

• Compound 13 demonstrated potent broad-spectrum activity against B. subtilis, E. coli, and S. aureus.
• Strong binding affinities were observed with key bacterial enzymes (DHFR, ankyrin repeat protein).
• In silico predictions indicated favorable pharmacokinetic properties and low toxicity for compound 13.

Conclusions:

• Electron-withdrawing groups on the piperazine core enhance antibacterial potency.
• Compound 13 is a promising lead for novel antibacterial drug development.
• Further in vivo studies and optimization are warranted for compound 13.