The present invention discloses a pharmaceutical composition comprising a compound of formula (I) or stereoisomer, prodrug, pharmaceutically acceptable salt, double salt and/or solvate thereof as an active ingredient, as well as pharmaceutically acceptable carriers. The dosage form of said pharmaceutical composition is one of the pharmaceutically acceptable dosage forms. The present invention also discloses use of the pharmaceutical composition for treatment of bacterial infections, wherein said bacteria are Gram positive bacteria, including Staphylococcus, Micrococcus pneumoniae, Enterococcus faecalis, Streptococcus, Streptococcus bovis, Streptococcus pneumoniae, Peptostreptococcus, suppurative Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus agalactiae, Streptococcus riridans, Streptococcus agalactiae B and Bacillus diphtheriae, etc.Linvention concerne une composition pharmaceutique comprenant un composé de formule (1) ou un stéréo-isomère, promédicament, sel pharmaceutiquement acceptable, sel double et/ou solvate de ce composé, en tant que principe actif, ainsi que des excipients pharmaceutiquement acceptables. La forme galénique de cette composition pharmaceutique est une forme galénique pharmaceutiquement acceptable. Linvention concerne en outre lutilisation de cette composition pharmaceutique pour traiter des infections bactériennes par des bactéries telles que des bactéries à gram positif parmi lesquelles figurent entre autres Staphylococcus, Micrococcus pneumoniae, Enterococcus faecalis, Streptococcus, Streptococcus bovis, Streptococcus pneumoniae, Peptostreptococcus, suppurative Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus agalactiae, Streptococcus riridans, Streptococcus agalactiae B et Bacillus diphtheriae.