Benzothiazole derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 417/12 (2006.01) A61K 31/425 (2006.01) A61P 25/00 (2006.01)

Patent

CA 2574193

The present invention relates to compounds of the general formula (IA) (IB) wherein R1, R2 independently from each other are lower alkyl or -(CH2)m-O- lower alkyl, or form together with the N atom to which they are attach a heterocyclic ring; R3 is hydrogen or lower alkyl; R4 is lower alkyl; hetaryl is 3H-imidazole-2,4-diyl or 1H-pyrazole-1,4-diyl; n is 1 or 2 and m is 1 or 2; and to pharmaceutically acceptable acid addition salts thereof. These compounds may be used for the treatment of Alzheimer's disease, Parkinson's disease, Huntington's disease, neuroprotection, schizophrenia, anxiety, pain, respiration deficits, depression, ADHD, drug addiction, such as amphetamine, cocaine, opioids, ethanol, nicotine, cannabinoids, or for the treatment of asthma, allergic responses, hypoxia, ischaemia, seizure and substance abuse, or for use as sedatives, muscle relaxants, antipsychotics, antiepileptics, anticonvulsants and cardiaprotective agents for coronary artery disease and heart failure.

L'invention concerne des composés et des sels d'addition acides de ceux-ci pharmaceutiquement acceptables représentés par la formule (IA) (IB) dans laquelle R1, R2 représentent indépendamment l'un de l'autre alkyle inférieur ou -(CH2)m-O-alkyle inférieur ou forment ensemble avec l'atome N auquel ils sont fixés un noyau hétérocyclique; R3 représente hydrogène ou alkyle inférieur; R4 représente alkyle inférieur; hétaryle représente 3<I>H</I>-imidazole-2,4-diyl ou 1<I>H</I>-pyrazole-1,4-diyl; n est égal à 1 ou 2 et m est égal à 1 ou 2. Ces composés peuvent être utilisés pour traiter la maladie d'Alzheimer, la maladie de Parkinson, la maladie d'Huntington, les maladies neurodégénératives, la schizophrénie, l'anxiété, la douleur, les insuffisances respiratoires, la dépression, ADHD, l'addiction aux médicaments, tels qu'amphétamines, cocaïne, opioïdes, éthanol, nicotine, cannabinoïdes ou pour traiter l'asthme, les réponses allergiques, l'hypoxie, l'ischémie, les crises d'épilepsie et l'abus de substances, ou comme sédatifs, myorelaxants, agents antipsychotiques, antiépileptiques, anticonvulsifs et cardiaprotecteurs pour la coronaropathie et l'insuffisance cardiaque.

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