Pyrazine derivatives and pharmaceutical use thereof

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 403/04 (2006.01) A61K 31/501 (2006.01) A61P 9/00 (2006.01) A61P 25/00 (2006.01) C07D 401/14 (2006.01) C07D 403/14 (2006.01) C07D 405/14 (2006.01) C07D 409/04 (2006.01) C07D 417/14 (2006.01) C07D 487/04 (2006.01) C07D 498/08 (2006.01)

Patent

CA 2562126

A pyrazine derivative of the following formula (I): wherein is hydrogen or optionally substituted lower alkyl; X,is hydrogen, halogen, hydroxy, cyano, acyl, or amino, aryl, heterocyclic group or the like; Y is hydrogen, halogen, hydroxy, acyl, amino, or the like; Z is aryl. or heteroaryl, each of which is optionallysubstituted; or a salt thereof. The pyrazine compound (I) and a salt thereof of the present invention are adenosine antagonists and are useful for the prevention and/or treatment of depression, dementia (e.g. Alzheimer's disease, cerebrovascular dementia, dementia accompanying Parkinson's disease, etc.), Parkinson's disease,anxiety, pain, cerebrovascular disease (e.g. stroke, etc.), heart failure and the like.

Dérivé de pyrazine de formule (I) suivante : dans laquelle est un hydrogène ou un alkyle inférieur facultativement substitué ; X est un hydrogène, un halogène, un hydroxy, un cyano, un acyle ou un amino, un aryle, un groupe hétérocyclique ou similaire ; Y est un hydrogène, un halogène, un hydroxy, un acyle, un amino ou similaire ; Z est un aryle ou un hétéroaryle, chacun de ceux-ci étant facultativement substitué ; ou sel de celui-ci. Le composé pyrazine (I) et un sel de celui-ci de la présente invention sont des antagonistes de l'adénosine et sont utiles pour la prévention et/ou le traitement de la dépression, de la démence (par exemple de la maladie d'Alzheimer, de la démence vasculaire cérébrale, de la démence accompagnant la maladie de Parkinson, etc.), de la maladie de Parkinson, de l'anxiété, de la douleur, d'une maladie vasculaire cérébrale (par exemple d'une attaque, etc.), d'une crise cardiaque et similaires.

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