Synthesis and antibacterial activities of a novel alkylide: 3-O-(3-aryl-2-propargyl) and 3-O-(3-aryl-2-propenyl)clarithromycin derivatives

Bioorg Med Chem Lett. 2010 May 1;20(9):2880-3. doi: 10.1016/j.bmcl.2010.03.038. Epub 2010 Mar 11.

Abstract

A series of novel 3-O-(3-aryl-E-2-propenyl)clarithromycin derivatives 8 and 3-O-(3-aryl-2-propargyl)clarithromycin derivatives 11 were designed, synthesized, and evaluated for their in vitro antibacterial activities. Compared with 8c and 11c (Ar was 5-pyrimidyl), 3-O-(3-(5'-pyrimidyl)-Z-1-propenyl) counterpart 6c displayed 4- to 64-fold more potent activities against erythromycin-susceptible Staphylococcus aureus and Streptococcus pneumoniae. Moreover, the activities of 6c, 8c, and 11c against erythromycin-resistant S. aureus and S. pneumoniae were in general 4-fold higher than those of the reference compound, clarithromycin and azithromycin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis*
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology
  • Clarithromycin / analogs & derivatives*
  • Clarithromycin / chemical synthesis
  • Clarithromycin / pharmacology
  • Microbial Sensitivity Tests
  • Staphylococcus aureus / drug effects
  • Streptococcus pneumoniae / drug effects
  • Structure-Activity Relationship

Substances

  • Anti-Bacterial Agents
  • Clarithromycin