| abstract |
The present invention is useful as an antimicrobial agent, especially the novel cephalosporin compound of Formula 1, a method for preparing the compound of Formula 1, and the like having strong antibacterial activity against strains such as methicillin resistant Staphylococcus aureus (MRSA) It relates to an antimicrobial composition comprising as an active ingredient:n n n n n n n n n n In the above formulan n n R 1 , R 2 , R 3 , R 3 ' , Q, Q', n and Ar are each as defined in the specification. |