申请人:Chugai Seiyaku
Kabushiki Kaisha
公开号:EP0342675A2
公开(公告)日:1989-11-23
Novel compounds of the present invention are represented by the general formula (I)
wherein R₁ is hydrogen atom or amino, R₂ is fluorine atom or methoxy, R₃ is hydrogen atom or a lower alkyl having 1 to 3 carbon atoms, and n is 0 or 1. The compounds of the general formula (1) exhibit higher antibacterial activity with fewer side-effects than known quinolone antibiotics such as ofloxacin and norfloxacin. Further, the compounds having the general formula (1) have reduced phototoxicity which normally accompanies 6,8-difluoroquinoline antibiotics.
本发明的新型化合物由通式(I)表示
其中 R₁ 是氢原子或氨基,R₂ 是氟原子或甲氧基,R₃ 是氢原子或具有 1 至 3 个碳原子的低级烷基,n 是 0 或 1。与已知的喹诺酮类抗生素(如氧氟沙星和诺氟沙星)相比,通式(1)化合物具有更高的抗菌活性和更少的副作用。此外,通式(1)化合物还降低了通常伴随 6,8-二氟喹啉类抗生素出现的光毒性。