| abstract |
Compounds of the formula ** Formula ** in which R 1 is cycloalkyl, arylalkyl or aryloxyalkyl; R2 is cycloalkyl, arylalkyl or aryloxyalkyl; or R1 and R2 together with the carbon atoms Ca and Cb to which they are attached form ** Formula ** R3 is hydrogen, alkyl, cycloalkyl or trifluoromethyl; R4 is benzyl, cycloalkyl, arylcycloalkyl, adamantyl, aryl or heterocyclyl, in which benzyl, cycloalkyl, arylcycloalkyl, aryl and heterocyclyl are optionally substituted one to three times by substituents independently selected from each other between alkyl, cycloalkyl, alkoxy, hydroxy, halogen, trifluoromethyl, trifluoromethoxy, benzyl, phenyl and phenyl substituted one to three times by substituents independently selected from each other among alkyl, alkoxy, hydroxy, cycloalkyl, halogen and trifluoromethyl; R5 is hydrogen, alkyl, cycloalkyl or alkoxy; R6 is hydrogen, alkyl, cycloalkyl or alkoxy; R7 is hydrogen, alkyl, cycloalkyl or alkoxy; and pharmaceutically acceptable salts and esters thereof; with the proviso that 3- (2-furanyl) - 5,6,7,8-tetrahydro-5-methyl-quinoline is excluded and that in case R4 is unsubstituted phenyl, at least one of residues R5, R6 and R7 are not hydrogen or methyl. |