| abstract |
The present invention relates to 1-aza-bicycloalkyl derivatives of formula I, n n n n n n n n n n wherein X is CH 2 or a single bond; Y is a group of formula n n n n n n n n n n and wherein R has the meanings as defined in the specification, which compounds are alpha 7 nicotinic acetylcholine receptor (nAChR) agonists; to processes for their production, their use as pharmaceuticals and to pharmaceutical compositions comprising them. |