Chemical synthesis and biological activities of novel pleuromutilin derivatives with substituted amino moiety

PLoS One. 2013 Dec 23;8(12):e82595. doi: 10.1371/journal.pone.0082595. eCollection 2013.

Abstract

Novel pleuromutilin derivatives designed based on the structure of valnemulin were synthesized and evaluated for their in vitro antibacterial activities. These pleuromutilin derivatives with substituted amino moiety exhibited excellent activities against methicillin-resistant Staphylococcus aureus, methicillin-resistant Staphylococcus epidermidis, Escherichia coli, and Streptococcus agalactiae. Compound 5b showed the highest antibacterial activities and even exceeded tiamulin. Moreover, the docking experiments provided information about the binding model between the synthesized compounds and peptidyl transferase center (PTC) of 23S rRNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry*
  • Binding Sites
  • Crystallography, X-Ray
  • Diterpenes / chemical synthesis
  • Diterpenes / chemistry
  • Diterpenes / pharmacology
  • Escherichia coli / drug effects
  • Methicillin-Resistant Staphylococcus aureus / drug effects
  • Microbial Sensitivity Tests
  • Molecular Docking Simulation
  • Pleuromutilins
  • Polycyclic Compounds
  • Staphylococcus epidermidis / drug effects
  • Streptococcus agalactiae / drug effects

Substances

  • Amines
  • Diterpenes
  • Polycyclic Compounds

Grants and funding

This work was supported by Basic Scientific Research Funds in Central Agricultral Scientific Research Institutions (number 1610322013004) and “Five-Year” plan of national science and technology projects in rural areas (number 2011AA10A214). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.