申请人:KAKEN PHARMACEUTICAL CO., LTD.
公开号:EP0726269A1
公开(公告)日:1996-08-14
Quinolinecarboxylic acid derivatives which are represented by the general formula (I)
wherein R1 is a C1 to C6 alkyl group which may be substituted, a C2 to C6 alkenyl group which may be substituted, a C3 to C7 cycloalkyl group which may be substituted or an aryl group which may be substituted, R2 is hydrogen atom; a halogen atom; hydroxyl group which may be protected, amino group or a C1 to C6 alkylamino group each of which may be protected; a C1 to C6 dialkylamino group or a C1 to C6 alkyl group,
R3 is hydrogen atom or a C1 to C6 alkyl group,
A is nitrogen atom or
wherein A' is hydrogen atom, a halogen atom, a C1 to C6 alkyl group, a C1 to C6 alkoxyl group which may be substituted, cyano group, or nitro group, and A' may form a ring with R1; the ring may include oxygen atom, nitrogen atom, or sulfur atom as a constituent atom; the ring may be substituted with a C1 to C6 alkyl group,
X is hydroxymethyl group; aminomethyl group or amino group each of which may be protected,
and salts thereof, and antibacterial agents which comprise the quinolinecarboxylic acid derivatives and salts thereof as active ingredients, and therapeutical methods thereby.
通式(I)表示的喹啉羧酸衍生物
其中 R1 是可被取代的 C1 至 C6 烷基、可被取代的 C2 至 C6 烯基、可被取代的 C3 至 C7 环烷基或可被取代的芳基,R2 是氢原子;卤素原子;可被保护的羟基、氨基或 C1 至 C6 烷基氨基,其中每个都可被保护;C1 至 C6 二烷基氨基或 C1 至 C6 烷基、
R3 是氢原子或 C1 至 C6 烷基、
A 是氮原子或
其中 A'是氢原子、卤素原子、C1 至 C6 烷基、可被取代的 C1 至 C6 烷氧基、氰基或硝基,A'可与 R1 形成环;环的组成原子可包括氧原子、氮原子或硫原子;环可被 C1 至 C6 烷基取代、
X 是羟甲基、氨甲基或氨基,其中每个基团都可以被保护、
及其盐类,以及包含喹啉羧酸衍生物及其盐类作为活性成分的抗菌剂及其治疗方法。