申请人:Daiichi Pharmaceutical Co., Ltd.
公开号:US06573260B1
公开(公告)日:2003-06-03
This invention provides a quinolone derivative which exerts strong antibacterial action upon various bacteria and has high safety, and it relates to a compound having a structure of formula (I), its salts and hydrates thereof:
{R1 and R2: hydrogen, alkyl; n: 1 to 4; Q: following structure (Ia):
[R3: alkyl, alkenyl, halogenoalkyl, cyclic alkyl, aryl, heteroaryl, alkoxyl, alkylamino; R4: hydrogen, alkylthio; R5: hydrogen, amino, hydroxyl, thiol, halogenomethyl, alkyl, alkenyl, alkynyl, alkoxyl; X1: halogen, hydrogen, A1: nitrogen, structure of formula (II):
(X2: hydrogen, amino, halogen, cyano, halogenomethyl, halogenomethyl, alkyl, alkenyl, alkynyl, alkoxyl; R4 and R3 or X2 and R3 may together form a cyclic structure; Y: hydrogen, various ester forming groups]}.
这项发明提供了一种喹诺酮衍生物,其对各种细菌具有强烈的抗菌作用,并具有高度的安全性,涉及具有结构式(I)、其盐和水合物的化合物:{R1和R2:氢、烷基;n:1至4;Q:以下结构(Ia):[R3:烷基、烯基、卤代烷基、环烷基、芳基、杂芳基、烷氧基、烷基氨基;R4:氢、烷基硫;R5:氢、氨基、羟基、硫醇、卤代甲基、烷基、烯基、炔基、烷氧基;X1:卤素、氢、A1:氮、结构式(II):(X2:氢、氨基、卤素、氰基、卤代甲基、卤代甲基、烷基、烯基、炔基、烷氧基;R4和R3或X2和R3可以共同形成环状结构;Y:氢、各种酯形成基)。