PYRIDONECARBOXYLIC ACID DERIVATIVES AND INTERMEDIATES FOR THE SYNTHESIS THEREOF

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.