[EN] IMIDAZOL-4-YL-ETHYNYL-PYRIDINE DERIVATIVES<br/>[FR] DERIVES DE L'IMIDAZOL-4-YL-ETHYNYL-PYRIDINE
申请人:HOFFMANN LA ROCHE
公开号:WO2004080998A1
公开(公告)日:2004-09-23
4-[1-Aryl-imidazol-4-ylethynyl]-2-alkyl-pyridine and 1-heteroaryl-imidazol-4-ylethynyl]-2-alkyl-pyridine derivatives and pharmaceutically acceptable salts thereof for the treatment or prevention of disorders mediated full or in part by metabotropic glutamate receptor 5, e.g. acute, traumatic and chronic degenerative processes of the nervous system, such as Alzheimer's disease, senile dementia, Parkinson's disease, Huntington's chorea, amyotrophic lateral sclerosis and multiple sclerosis, psychiatric diseases such as schizophrenia and anxiety, depression, pain and drug dependency.
The present invention relates to imidazole derivatives of formula I
1
wherein R
1
, R
2
, R
3
and R
4
are described hereinbelow. These compounds can be used in the treatment or prevention of mGluR5 receptor mediated disorders. These compounds are useful, inter alia, in the treatment or prevention of acute and/or chronic neurological disorders such as psychosis, epilepsy, schizophrenia, Alzheimer' disease, cognititve disorders and memory deficits, as well as chronic and acute pain.