Mur ligases inhibitors with azastilbene scaffold: Expanding the structure-activity relationship

Area of Science:

• Microbiology
• Medicinal Chemistry
• Drug Discovery

Background:

• Antibiotic resistance is a critical global health threat.
• Mur ligases (MurC-MurF) are essential for bacterial cell wall synthesis and represent promising antibacterial targets.

Purpose of the Study:

• To synthesize and evaluate novel azastilbene scaffold inhibitors targeting Mur ligases.
• To explore structure-activity relationships for Mur ligase inhibition.

Main Methods:

• Chemical synthesis of azastilbene derivatives.
• Biochemical assays to assess Mur ligase inhibition.
• Structure-activity relationship (SAR) analysis.
• Evaluation of antibacterial activity.

Main Results:

• Several synthesized compounds exhibited potent inhibition against multiple Mur ligases.
• One compound demonstrated moderate broad-spectrum antibacterial activity.
• Established structure-activity relationships for the azastilbene scaffold.

Conclusions:

• Azastilbene derivatives are promising scaffolds for developing new antibacterial agents.
• Targeting Mur ligases offers a viable strategy to combat antibiotic resistance.
• Further optimization could lead to clinically relevant antimicrobial drugs.