Synthesis and antibacterial evaluation of new monobactams

Bioorg Med Chem Lett. 2021 May 1:39:127878. doi: 10.1016/j.bmcl.2021.127878. Epub 2021 Feb 24.

Abstract

Monobactams play an important role in antibiotic drug discovery. Based on the structural characteristics of aztreonam and its biological targets, six new monobactam derivatives (2a-c and 3a-c) were synthesized and their in vitro antibacterial activities were investigated. Compounds 2a-c showed higher activities against tested gram-negative bacteria than that of parent aztreonam. Monobactam 2c exhibited the most potent activities, with MIC ranging from 0.25 to 2 μg/mL against most bacteria.

Keywords: Antibacterial; Aztreonam; Gram-negative; Monobactam.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Dose-Response Relationship, Drug
  • Gram-Negative Bacteria / drug effects*
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Monobactams / chemical synthesis
  • Monobactams / chemistry
  • Monobactams / pharmacology*
  • Structure-Activity Relationship

Substances

  • Anti-Bacterial Agents
  • Monobactams