| 摘要 |
This invention relates to compounds of Formula (I) wherein: R1 and R2 are independently selected from hydrogen, straight-chain and branched alkyl group having up to 10 carbon atoms or -(CH2)mAr where Ar is phenyl, naphthyl or thienyl, each optionally substituted by one or two substituents selected independently from C1-C6 alkyl, halogen, C1-C6 alkoxide and trifluoromethyl; or NR1R2 is 1,2,3,4-tetrahydroquinolin-1-yl or 1,2,3,4-tetrahydroisoquinolin-2-yl; m is 1-5; n is 1 or 2; Y is halogen, C1-C6 alkyl, and C1-C6 alkoxy; or the pharmaceutically acceptalbe salts thereof, which are dopamine D2 agonists and therefore useful in the treatment of psychoses and Parkinson's disease.
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