Formula (I) compounds with atypical antipsychotic activity
where the meanings of the various groups are as described here below, are endowed with activity characteristic of atypical antipsychotic agents, and therefore are useful as medicaments, particularly for the treatment of schizophrenia, paranoid states, manic-depressive states, affective disorders, social regression, personality regression and hallucinations.
Using rational drug design to develop atypical antipsychotic drug candidates, we generated novel and metabolically stable pyrrolobenzazepines with an optimized pK(i) 5-HT(2A)/D(2) ratio. 5a, obtained by a new palladium-catalyzed three-step synthesis, was selected for further pharmacological and biochemical investigations and showed atypical antipsychotic properties in vivo. 5a was active on conditioned