The invention relates to (hetero)aryl cyclopropylamine compounds, including particularly the compounds of formula I as described and defined herein, and their use in therapy, including, e.g., in the treatment or prevention of cancer, a neurological disease or condition, or a viral infection.

##STR00001##

The invention relates to (hetero)aryl cyclopropylamine compounds, including particularly the compounds of formula I as described and defined herein, and their use in therapy, including, e.g., in the treatment or prevention of cancer, a neurological disease or condition, or a viral infection.

##STR00001##

The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I) is useful as an agent for the prophylaxis or treatment of narcolepsy.

The present invention provides a heterocyclic compound having an orexin type 2 receptor agonist activity. A compound represented by the formula (I) is useful as an agent for the prophylaxis or treatment of narcolepsy.