| abstract |
The quinoxaline 2,3-dione compound or a pharmaceutically acceptable salt thereof has the formula I wherein: R1 and R2 are independently H, alkyl or -(CH2)mAr or together with the nitrogen atom R1 and R2 form a 1,2,3,4-tetrahydroquinolin-1-yl or 1,2,3,4-tetrahydroquinolin-2-yl; Ar is optionally substituted phenyl, naphthyl or thienyl; m is 1 to 5; n is 1 or 2; Y is H, halo, alkyl or alkoxy. A pharmaceutical composition thereof is useful for treating diseases that respond to treatment with dopamine D2 agonists. |