To provide a new compound having an excellent antibacterial activity against a wide variety of pathogenic bacteria such as drug-resistant bacteria and bacteria causing pneumonia in domestic livestock, tautomers thereof, or salts of the compound or the tautomers a method for producing them and the like.A compound having a structure represented by the following Structural Formula (1), tautomers thereof, or salts of the compound or the tautomers and a method including culturing a microorganism belonging to the genus Amycolatopsis and capable of producing the compound, the tautomers or the salts, and isolating the compound, the tautomers or the salts from a culture obtained from the culturing and the like.
