| 摘要 |
This invention relates to pyridonecarboxylic acid derivatives of the following general formula, esters thereof and salts thereof, as well as pharmaceutical preparations containing them. <CHEM> wherein: R is cycloalkyl which may be substituted by halogen, or the like; X is hydrogen, lower alkyl, amino or the like; Y is hydrogen or halogen; A is nitrogen or a group of the formula C-Z in which Z is lower alkoxy that may be substituted by halogen, or the like; R1 and R2 may be the same or different and are each hydrogen or the like; R3 is hydrogen or lower alkyl; R4, R5, R6, R7, R8 and R9 may be the same or different and are each hydrogen, halogen or lower alkyl; m is 0 or 1; and n and p may be the same or different and are each 0 or 1. This invention also relates to bicyclic amine compounds useful as direct intermediates for the synthesis of the above-described pyridonecarboxylic acid derivatives. |
