Pyrazolo-pyridine derivatives as ligands for gaba receptors

C - Chemistry – Metallurgy – 07 – D

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C07D 471/04 (2006.01) A61K 31/435 (2006.01)

Patent

CA 2324266

A class of pyrazolo[4,3-c]pyridin-3-one derivatives, substituted at the 2- position by an optionally substituted aryl or heteroaryl moiety, and having pendant substituents at the 7-position and optionally also at the 6-position, are selective ligands for GABAA receptors, in particular having high affinity for the .alpha.2 and/or .alpha.3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of disorders of the central nervous system, including anxiety and convulsions.

Catégorie de dérivés de pyrazolo[4,3-c]pyridine-3-one substitués en position 2 par une fraction aryle ou hétéroaryle éventuellement substituée et possédant des substituants pendants en position 7 et, éventuellement, en position 6. Ces dérivés sont des ligands sélectifs pour des récepteurs de GABA¿A?, étant donné qu'ils présentent une affinité importante pour la sous-unité .alpha.2 et/ou .alpha.3 de ces récepteurs, et peuvent, de ce fait, être utilisés avantageusement pour le traitement et/ou la prévention de troubles du système nerveux central, y compris l'anxiété et les convulsions.

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