| 摘要 |
<p>Antibacterial compounds useful as medicines, animal drugs, aquacultural drugs or antibacterial preservatives; and antibacterial drugs or preparations containing the same, having an excellent activity against a wide variety of bacteria including particularly quinolone-resistant bacteria and being highly safe, more specifically quinolone derivatives that are represented by general formula (I) wherein R2 at the 7-position represents a group derived from a heterocyclic spiro compound and N at the 1-position bears a halogenocyclopropyl group and that comprise each preferably a single isomer.</p> |
