Oxo-pyridoimidazole-carboxamides: gaba brain receptor ligands

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 471/04 (2006.01) A61K 31/437 (2006.01) C07D 221/00 (2006.01) C07D 235/00 (2006.01)

Patent

CA 2341531

Disclosed are compounds of formula (I), or the pharmaceutically acceptable non- toxic salts thereof where R1-R4 and A are defined herein, which compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAa brain receptors and are, therefore, useful in the diagnosis and treatment of anxiety, Down Syndrome, depression, sleep, cognitive and seizure disorders, overdose with benzodiazepine drugs and for enhancement of altertness.

L'invention traite de composés représentés par la formule (I), ou de leurs sels pharmaceutiquement acceptables et non toxiques, R¿1?-R¿4? et A étant définis dans le descriptif. Les composés en question sont des agonistes, antagonistes ou agonistes inverses hautement sélectifs -ar rapport aux récepteurs cérébraux GABAa, ou aux promédicaments de ces agonistes, antagonistes ou agonistes inverses. Ces composés sont, par conséquent, utiles en matière de diagnostic et de traitement de l'anxiété, du syndrome de Down, de la dépression, des troubles du sommeil, des troubles cognitifs et épileptiques, en cas de surdose de médicaments à base de benzodiazépine et pour améliorer la capacité de réaction mentale.

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