Pyridonecarboxylic acid derivatives of the following formula.
wherein R is hydrogen atom or lower alkyl group, R1 is lower alkyl group, cycloalkyl group or haloalkyl group, Y is hydrogen atom or halogen atom, or Y and R1 are
which work together, R2 is hydrogen atom, lower alkyl group, alkoxycarbonyl group or acyl group and n is 0 or 1; the hydrates and pharmaceutically acceptable salts thereof are useful as antibacterial agents.
下式的
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生物。
其中 R 是氢原子或低级烷基,R1 是低级烷基、环烷基或卤代烷基,Y 是氢原子或卤素原子,或 Y 和 R1 是
共同作用,R2 是氢原子、低级烷基、烷氧羰基或酰基,n 是 0 或 1;其
水合物和药学上可接受的盐可用作抗菌剂。