Disclosed are: a compound represented by general formula (I), or a pharmaceutically acceptable salt of the compound, or a solvate of the compound or the pharmaceutically acceptable salt； a pharmaceutical composition containing the compound, the pharmaceutically acceptable salt or the solvate； a use of the compound, the pharmaceutically acceptable salt or the solvate for the prevention or treatment of infectious diseases； and a method for preventing or treating infectious diseases using the compound, the pharmaceutically acceptable salt or the solvate. The compound represented by general formula (I) has an antibacterial activity against both gram-positive bacteria and gram-negative bacteria, and is therefore useful for the prevention or treatment of infectious diseases induced by these bacteria.本發明揭示一種以下一般式(I)所表示之化合物、或此等之藥學上可容許之鹽、或此等之溶劑合物、以及含有此等之醫藥組成物、用來預防或治療感染症之此等之使用、使用此等之感染症之預防或治療方法。一般式(I)所表示之化合物對於革蘭氏陽性菌以及革蘭氏陰性菌兩者皆具有抗菌活性，並有用於此等菌造成的感染症之預防或治療中。
