Abstract: Provided herein is a compound of Formula (I): or a pharmaceutically acceptable salt thereof, wherein values for the variables (e.g., R1, R2, X1, X2, Y1, Y2, Y3, Y4, Y5, Y6, Y7, and Y8) are as disclosed herein. Also provided herein are pharmaceutical compositions comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof, and methods of using the compounds, pharmaceutically acceptable salts thereof and pharmaceutical compositions of the foregoing, e.g., to treat a neurological or psychiatric disease or disorder.

Abstract: The present application provides EphB3 kinase inhibitors, useful intreating neurodegenerative or demyelinating diseases or conditions such as autoimmune encephalomyelitis and multiple sclerosis.