| abstract |
[PROBLEMS] For diseases such as schizophrenia, Alzheimer's disease, cognitive dysfunction, dementia, anxiety disorder, depression, AD / HD (attention deficit / hyperactivity disorder), drug dependence, convulsions, tremor, sleep disorder, etc. To provide a preventive or therapeutic drug. A novel imidazolimidazolone derivative represented by general formula (I) having a positive allosteric modulator action on metabotropic glutamate receptor subtype 2 (mGlu2 receptor), or a pharmaceutically acceptable salt thereof . [Chemical 1] [Selected figure] None |