| abstract |
Compounds of the formula <IMAGE> wherein A is -CH2-CH2-, -CH=CH-, -NH-CO-, -CH2-CO- or <IMAGE> where R7 is alkyl of 1 to 3 carbon atoms, and B is methylene, carbonyl or thiocarbonyl, or A is -CO-CO-, -N=CH-, <IMAGE> <IMAGE> where R8 is hydrogen or alkyl of 1 to 3 carbon atoms substituted by a phenyl, methoxyphenyl or dimethoxyphenyl, and B is methylene; E is n-alkylene of 2 to 4 carbon atoms optionally substituted by an alkyl of 1 to 3 carbon atoms, 2-hydroxy-n-propylene, 2-hydroxy-n-butylene or 3-hydroxy-n-butylene; G is n-alkylene of 1 to 5 carbon atoms optionally substituted by an alkyl of 1 to 3 carbon atoms, wherein one methylene group of an n-alkylene of 2 to 5 carbon atoms can be replaced by a carbonyl group, with the proviso that B represents a methylene or carbonyl group, or methylene-n-hydroxy-alkylene of 1 to 4 carbon atoms, where the methylene group is attached to the nitrogen atom; and R1 to R5 are simple substituents of various types; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bradycardiacs. |