New dihydro-oxazolobenzodiazepinone compounds, a process for their preparation and pnarmaceutical compositions containing them

Abstract

Compound of formula (I): wherein:  R 1 represents a hydrogen atom or an alkyl group;  R 2 represents an alkyl group;  R 3 represents an aryl or heteroaryl group; and. a pharmaceutical composition comprising thereof for use in the treatment or prevention of schizophrenia, unipolar depression, disorders, Down's syndrome, fragile X syndrome, Parkinson's disease, Huntington's disease, generalised anxiety, panic disorder with or without agoraphobia, obsessive-compulsive disorders, post-traumatic stress disorders, bipolar disorders, sequelae of a cerebral vascular accident and sequelae of brain, spine or medullary trauma.Alzheimer's disease, vascular dementia, autism spectrum