Benzothiazole derivatives, processes for their preparation and pharmaceutical compositions containing these compounds

摘要

Benzothiazole derivatives corresponding to the general formula I <IMAGE> (I) wherein R1, R2, R3 and R4 represent, independently of one another, a hydrogen atom, a halogen atom, a linear C1-C3-alkyl group or a linear C1-C3-alkoxy group, R5 represents a hydrogen atom or a linear C1-C3-alkyl group, R6 represents a hydrogen atom, and R7 represents a formyl group, a carbalkoxy group of the formula <IMAGE> wherein R8 denotes a linear or branch chained C1-C4-alkyl group, or it represents an acyl group of the formula <IMAGE> wherein R9 denotes a linear C1-C3-alkyl group, or R6 and R7 together represent the group <IMAGE> wherein R10 and R11 represent, independently of one another, a hydrogen atom or a linear C1-C6-alkyl group or R6 and R7 represent the group <IMAGE> wherein R12 and R13 represent, independently of one another, a linear C1-C3-alkyl group or a linear C1-C3-alkoxy group or R6 and R7 represent the group <IMAGE> wherein R14 denotes a linear C1-C3-alkyl group, as well as the physiologically acceptable salts thereof, a process for the preparation of these compounds, and a pharmaceutical preparation containing them, are described.