摘要 |
The present invention relates to compounds of formula (I) or salts thereof wherein A, X, R2, R4 and n are defined herein, processes for their preparation, intermediates used in these processes, pharmaceutical compositions containing them and their use in therapy, as modulators of dopamine D3 receptors, e.g., to treat drug dependency, as antipsychotic agents, to treat obsessive compulsive spectrum disorders, premature ejaculation or to enhance cognition.
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