abstract |
Formula I: (I) And a pharmaceutically acceptable salt or isomer thereof, wherein R 1 , R 2 and R 3 are as defined in the specification, and a D 2 or D 3 antagonist compound and a pharmaceutical composition provide. The present invention further includes methods for producing the compounds of the present invention and methods for treating conditions mediated by dopamine D 2 or D 3 receptors from the compounds of the present invention. |