Abstract: Compounds of the formula ##STR1## wherein R is lower-alkyl, R.sup.1 is halogen, R.sup.2 is C.sub.1 -C.sub.12 -alkyl, R.sup.3 is hydroxy, lower-alkoxy, lower-alkyl-carbonyloxy, lower-alkoxy-lower-alkylcarbonoyloxy, lower-alkylaminocarbonyloxy, arylaminocarbonyloxy or aryl-lower alkylaminocarbonyloxy, X is C.sub.1 -C.sub.18 -alkylene which optionally can be interrupted by 1,4-phenylene or interrupted or lengthened by 1,4-cyclohexylene, A is di- or tri-substituted 2-imidazolyl attached via an ethylene group or a substituted or unsubstituted heterocycle selected from the group consisting of benzimidazolyl, benzimidazolonyl, imidazo[4,5-c]pyridinyl, imidazo[4,5-c]pyridinonyl, benzthiazolyl, benzodiazepine-2,5-dion-1-yl and pyrrolo[2,1-c]-[1,4]benzodiazepine-5,11-dion-10-yl and n is the number 0 or 1, in the form of racemates and optical antipodes, as well as N-oxides and pharmaceutically usable acid addition salts thereof.