N-SUBSTITUTED AZAHETEROCYCLIC CARBOXYLIC ACIDS AND ESTERS THEREOF

摘要

The present invention relates to therapeutically active azaheterocyclic compounds of formula (I), a method of preparing the same and to pharmaceutical compositions comprising the compounds. The novel compounds are useful in treating a central nervous system ailment related to the GABA uptake. In said formula, A is a saturated or unsaturated five or six-membered carbocyclic ring optionally substituted with a phenyl, benzylidene, C1-4-alkyl substituted with phenyl or C2-4-alkenyl substituted with phenyl which phenyl or benzylidene is optionally substituted with halogen, C1-4-alkyl, C1-4-alkoxy or trifluoromethyl and which saturated or unsaturated five or six-membered carbocyclic ring may be optionally fused with a benzo ring.