The present invention concerns the compounds of formula
the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein X is O or S; n is 2, 3, 4 or 5; R1 is hydrogen, C1-6alkyl, C1-6alkyloxy or halo; R2 is hydrogen, C1-6alkyl, phenyl, phenylC1-6alkyl or phenylcarbonyl; R3 and R4 each independently are selected from hydrogen, halo, nitro, C1-6alkyl, C1-6alkyloxy, haloC1-6alkyl, aminosulfonyl, mono- or di(C1-4alkyl)aminosulfonyl; or R3 and R4 may also be taken together to form a bivalent radical of formula —CH═CH—CH═CH—; it further relates to processes for their preparation, compositions comprising them as well as their use as a medicine; compounds of formula (I) containing a radioactive isotope; a process of marking dopamine D4 receptor sites; and a process for imaging an organ are disclosed.
本发明涉及公式N-氧化物形式的化合物,其药学上可接受的酸盐加成物和立体
化学同分异构体,其中X为O或S;n为2、3、4或5;R1为氢、C1-6烷基、C1-6烷氧基或卤素;R2为氢、C1-6烷基、苯基、苯基C1-6烷基或苯基羰基;R3和R4各自独立地选自氢、卤素、硝基、C1-6烷基、C1-6烷氧基、卤素C1-6烷基、
氨基磺酰基、单或双(C1-4烷基)
氨基磺酰基;或R3和R4也可以结合在一起形成公式—CH═CH—CH═CH—的双价基团;还涉及它们的制备过程、包含它们的组合物以及它们作为药物的用途;公式(I)的化合物含有放射性同位素;描记
多巴胺D4受体位点的过程;以及成像器官的过程。