申请人:Korea Research Institute of Chemical Technology
公开号:US07012144B2
公开(公告)日:2006-03-14
Quinolone carboxylic acid derivatives of formula (I) and pharmaceutically acceptable salts thereof have potent antibacterial activity:
wherein,
R1 is a C1-4 alkyl group, or phenyl or C3-6 cycloalkyl group optionally substituted with one or more halogens;
R2 is H, amino or C1-4 alkyl group;
R3 is H, C1-4 alkyl group, or amino, aminomethyl or aminoethyl group optionally substituted with one C1-4 alkyl radical;
W is N, CH or CY (Y is halogen, or C1-4 alkyl or C1-4 alkoxy group optionally substituted with one or more halogens); and
Pyr represents 2-, 3- or 4-pyridyl group,
provided that when W is C, W and R1 are fused together to form COCH2CH(CH3), CCH2CH2CH(CH3), or CSCH2CH(CH3).
公式(I)中的喹诺酮羧酸衍生物及其药学上可接受的盐具有强效的抗菌活性:其中,R1是C1-4烷基,苯基或C3-6环烷基,可选地取代一个或多个卤素;R2是H,氨基或C1-4烷基;R3是H,C1-4烷基或氨基,氨甲基或氨乙基基团,可选地取代一个C1-4烷基基团;W是N,CH或CY(Y是卤素,或C1-4烷基或C1-4烷氧基团,可选地取代一个或多个卤素);Pyr代表2-,3-或4-吡啶基团,但当W为C时,W和R1融合在一起形成COCH2CH(CH3),CCH2CH2CH(CH3)或CSCH2CH(CH3)。