| abstract |
The present invention provides a compound of formula (I) or a salt thereof, a composition comprising the compound, and a method of treatment comprising administration of the compound. [Formula I] Wherein A 1 , A 2 , A 3 , R 1 , X, Y and B have any value described herein. The compounds are inhibitors of monoamine oxidase B (MAO-B) enzyme function and are useful for improving cognitive function and treating mental disorders in animals. |