| abstract |
The present invention provides a D2 or D3 antagonist compound and a pharmaceutical composition of a compound of general formula I and a pharmaceutically acceptable salt or an isomer thereof, wherein R1 , R2 and R3 are as defined herein . The invention also includes methods of making the compounds of the invention and methods of treating diseases mediated by dopamine D2 or D3 receptors with the compounds of the invention. |