Disclosed are a novel strain with antibacterial activity, identified as Streptomyces sp. AN1542 strain (Accession No.: KCTC 12113BP), an antibacterial composition comprising a compound represented by Chemical Formula 1 or 2, or a strain producing the same as an active ingredient, and a method for producing the same. Exhibiting potent antibacterial activity against pathogenic microbes and antibiotic-resistant microbes, particularly, MRSA, QRSA, VRSA and VRE, the compound or the strain of the present invention can be applied to the treatment of infectious diseases caused by superbacteria.
