| abstract |
The present invention is concerned with compounds of general formula (I), wherein R1 signifies lower-alkoxy, R2 signifies bromine, lower-alkoxy or hydroxy, R3 signifies hydrogen, lower-alkyl, cycloalkyl, aryl, heteroaryl, aralkyl, heteroaralkyl or cyano, R?4 and R5¿ each independently signify hydrogen, lower-alkyl, lower-alkoxy, halogen, hydroxy, amino, di(lower alkyl)-amino, cyano or nitro and Q signifies ethynylene or vinylene, pharmaceutically usable salts thereof, the use of these compounds and their salts as therapeutically active substances; medicaments based on these substances and their production; the use of these substances as medicaments and for the production of antibacterially-active medicaments; as well as the manufacture of the compounds of formula (I) and their pharmaceutically acceptable salts and intermediates for their manufacture. |