| abstract |
aza-bicycloalkyl derivatives, their use, their preparation process and pharmaceutical composition comprising them the present invention relates to 1-azabicycloalkyl derivatives of formula i, wherein x is ch 2 or a single bond; y is a group of formula and wherein r has the meanings as defined in the specification which compounds are nicotinic alpha 7 (nachr) acetylcholine receptor agonists; processes for their production, their use as pharmaceuticals and pharmaceutical compositions comprising them. |