| 摘要 |
Compounds having the general formula (I) and salts thereof with physiologically acceptable acids, in which R1, R2, R5 and R6 represent hydrogen atoms, straight-chain or branched-chain alkyl groups with up to 4 carbon atoms, cycloalkyl, aralkyl, aryl groups or the radicals R1 and R2, and/or radicals R5 and R6, when taken together with the adjacent nitrogen atom represent heterocyclic compounds with 3 to 7 ring members of which 1 to 3 can be hetero atoms, providing that R1, R2 and R5 and R6 can be the same or different radicals, and also the groups -NR1R2 and -NR5R6 can be the same or different, R4 represents a hydrogen atom or a lower alkyl group with up to 3 carbon atoms, R7 represents a hydrogen atom, a lower alkyl group with up to 3 carbon atoms or an aryl group, Z represents a halogen atom, a lower alkyl or alkoxy group with up to 3 carbon atoms, N REPRESENTS A NUMBER FROM 0 TO 2, AND U represents a straight-chain or branched-chain lower alkylene group with 2 to 5 carbon atoms in which a hydrogen atom can be replaced by a hydroxyl group. |
