Quinolonecarboxylic acid compounds, preparation methods and pharmaceutical uses thereof
申请人:Guo Huiyuan
公开号:US20070219231A1
公开(公告)日:2007-09-20
This invention discloses novel quinolonecarboxylic acid derivatives, pharmaceutically acceptable salts or hydrates thereof, and their preparation methods and medical uses. The compounds in this invention show potent antibacterial activity against broad-spectrum pathogenic bacteria, with favorable pharmacokinetics and very low toxicity. The quinolinecarboxylic acid derivatives, which possess a hydrogen atom or an amino group at C-5 position, cis-substituted optical or racemic 2,8-diazo-dicyclo[4,3,0]nonanyl at C-7 position, and difluoromethoxyl at C-8 position of quinolone core, have superior activity against gram-positive bacteria and broad spectrum antibacterial activity compared with the known quinolones.
本发明揭示了新的喹诺酮羧酸衍生物,其药学上可接受的盐或水合物,以及它们的制备方法和医药用途。本发明中的化合物对广谱致病菌表现出强大的抗菌活性,具有良好的药物动力学和极低的毒性。喹诺酮羧酸衍生物在喹诺酮核心的C-5位置具有氢原子或氨基,C-7位置具有顺式取代或外消旋2,8-二氮杂二环[4,3,0]壬基,C-8位置具有二氟甲氧基,与已知的喹诺酮相比,对革兰氏阳性菌和广谱抗菌活性具有优越的活性。