The invention relates to 3-aza-bicyclo[3.1.0]hexane derivatives of formula (I) wherein A, B, n, X, and R
1
are as described in the description, and salts thereof, and their use as orexin receptor antagonists.
The invention relates to novel trans-3-aza-bicyclo[3.1.0]hexane derivatives of formula (I), wherein A, B, n and R
1
are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.