| abstract |
The present invention relates to schizophrenia, Alzheimer's disease, cognitive dysfunction, dementia, anxiety disorder (generalized anxiety disorder, panic disorder, obsessive compulsive disorder, social anxiety disorder, post-traumatic stress based on glycine uptake inhibition action Disorders, specific phobias, acute stress disorders, etc.), depression, drug dependence, convulsions, tremors, pain, Parkinson's disease, attention deficit / hyperactivity disorder, bipolar disorder, eating disorders, or sleep disorders The object is to provide a novel compound or a pharmaceutically acceptable salt thereof useful for the prevention or treatment of diseases. The formula [I] Or a pharmaceutically acceptable salt thereof. [Selection figure] None |