Compounds regulating AMPA receptor function

摘要

The present invention provides a compound of formula (I) (A1, A2, R2, R4, B1, B2, x, x1, N, a and B, as defined herein), a pharmaceutical composition comprising the compound and a compound for use as a drug.It is expected that this compound may enhance the AMPA receptor function and be useful in the treatment of central nervous system disorders such as depression, mood disorders, and cognitive dysfunction associated with neurological disorders (schizophrenia, etc).