The present invention relates to the compounds of general formula I wherein n, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and X are defined as described hereinafter, the enantiomers, the diastereomers, the mixtures and the salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable properties, the preparation thereof, the medicaments containing the pharmacologically effective compounds, the preparation thereof and the use thereof.