| abstract |
The present invention relates to compounds of formula (I) n nwherein n R 1 , R 2 and R 3 are as defined in the specification and to pharmaceutically suitable acid addition salts thereof. The invention includes all sterioisomeric forms, including individual diastereoisomers and enantiomers of the compound of formula (I) as well as racemic and non-racemic mixtures thereof. It has been found that the present compounds are selective allosteric positive modulators of the human NK-3 receptor for the treatment of anxiety, depression, bipolar disorders, Parkinson's disease, schizophrenia and pain. |