abstract |
The invention relates to heterocyclic compounds of formula (I) or a salt thereof wherein X is CH or N; R1 is hydrogen or C¿1-6? alkyl; R?2 and R3¿ groups are independently halogen, C¿1-6? alkyl, or trifluoromethyl, having pharmacological activity, processes for their preparation, to compositions containing them and to their use in the treatment of CNS disorders such as anxiety. |