4-oxoquinolizine antibacterial agent having 2-pyridone skeleton as partial structure
    3.
    发明授权
    4-oxoquinolizine antibacterial agent having 2-pyridone skeleton as partial structure 失效
    具有2-吡啶酮骨架作为部分结构的4-氧代喹诺酮类抗菌剂

    公开(公告)号:US07223773B2

    公开(公告)日:2007-05-29

    申请号:US10809874

    申请日:2004-03-26

    IPC分类号: A61K31/44 C07D455/02

    摘要: The present invention provides a 4-oxoquinolizine antibacterial agent having a 2-pyridone skeleton as a partial structure and also having a strong antibacterial effect on gram-positive bacteria, gram-negative bacteria or anaerobic bacteria. The compound having the following formula (I) or a pharmaceutically acceptable salt thereof: wherein: R1 represents hydrogen atom or a carboxyl-protecting group, R2 represents hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or hydroxyl group, R3 represents phenyl group or an aromatic substituent selected from the group consisting of 5-membered and 6-membered heterocyclic groups and R3 has a substituent selected from the group consisting of a hydrogen atom, a lower alkyl group, a lower alkoxyl group, a nitro group, a cyano group, an amino group, an acyl group, a carbamoyl group and a ureido group, and R4 represents a hydrogen atom or a halogen atom.

    摘要翻译: 本发明提供了具有2-吡啶酮骨架作为部分结构并且对革兰氏阳性细菌,革兰氏阴性细菌或厌氧细菌具有强抗菌作用的4-氧喹诺酮抗菌剂。 具有下式(I)的化合物或其药学上可接受的盐:其中R 1表示氢原子或羧基保护基,R 2表示氢原子, 卤素原子,低级烷基,低级烷氧基或羟基,R 3表示苯基或选自5元和6元杂环基的芳香族取代基,R 3 3 <3>具有选自氢原子,低级烷基,低级烷氧基,硝基,氰基,氨基,酰基,氨基甲酰基的取代基 和脲基,R 4代表氢原子或卤素原子。