Abstract
A series of 5-(4-methyl-1,2,3-triazole)methyl oxazolidinones were synthesized and tested for their antibacterial activity against a panel of Gram-positive and Gram-negative clinical isolates in comparison with linezolid and vancomycin. Most of the compounds demonstrated strong to moderate in vitro antibacterial activity against susceptible and resistant Gram-positive pathogenic bacteria. Antibacterial activity varied with substitutions at the phenyl C4 position with bulky alkylcarbonyl and alkoxycarbonyl substitutions on the piperazine N4 being detrimental to antibacterial activity. Whereas the presence of the 4-methyl-1,2,3-triazole moiety in the acyl-piperazine containing analogs resulted in increased protein binding, and decreased antibacterial activity particularly against Streptococcus pneumoniae strains.
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