The present invention contemplates provision of a quinolone antibacterial agent and a drug for the treatment of infectious diseases, which exhibit potent antibacterial activity and higher selective toxicity against Gram-positive and Gram-negative bacteria, which do not cause side effects (e.g., convulsion), and which exhibit higher safety.
A compound represented by the following formula (I):
a salt of the compound, or a hydrate of the compound or the salt; and an antibacterial drug and an infectious disease treating drug containing the compound as an active ingredient.
A quinolone antibacterial compound, or a salt or hydrate of the compound, for the treatment of infectious diseases, which exhibit potent antibacterial activity and higher selective toxicity against Gram-positive and Gram-negative bacteria, which do not cause side effects (e.g., convulsion), which exhibit higher safety, and which has a structure of formula (I):