| 摘要 |
The compounds of formula I: <IMAGE> wherein X is H2 or O; R1 is hydrogen, hydroxy, halo, trifluoromethyl, trifluoromethoxy, alkyl, alkoxy, aralkoxy, alkanoyloxy, amino, mono- or di-alkylamino, alkanamido or alkanesulfonamido; Z is defined by <IMAGE> <IMAGE> <IMAGE> wherein R2, R3, R4, R5 and R6 are as defined in the specification; or a pharmaceutically acceptable salt thereof, are useful for the treatment of brain dopamine dysregulation.
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