The present invention concerns the compounds of formula
the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein Alk is C1-6alkanediyl or C3-6alkenediyl; R1 is hydrogen or C1-4alkyl; R2 and R3 each independently are hydrogen, C1-6alkyl or C3-7cycloalkyl; or R2 and R3 may also be taken together with the nitrogen atom to which they are attached, thus forming a pyrrolidine, a piperidine or a perhydro azepine ring; R4 is hydrogen or halo; Q is aryl, aryloxy, di(aryl)methyl or heteroaryl; aryl is naphthyl or phenyl, said naphthyl and phenyl may optionally be substituted; and heteroaryl is quinolinyl, isoquinolinyl, pyridinyl, thienyl, indolyl, 2,3-dihydro-1,4-benzodioxinyl, 2,3-dihydro-benzofuranyl or benzodioxolanyl; said heteroaryls may optionally be substituted; 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.
本发明涉及公式中的化合物的N-氧化物形式,其药学上可接受的酸盐和立体
化学异构体形式,其中Alk是C1-6烷二基或C3-6烯二基; R1是氢或C1-4烷基; R2和R3各自独立地是氢,C1-6烷基或C3-7环烷基; 或R2和R3也可以与它们连接的氮原子一起被取代,从而形成
吡咯烷,
哌嗪或过氢杂
环庚烷环; R4是氢或卤素; Q是芳基,芳氧基,二(芳基)甲基或杂芳基; 芳基是
萘基或苯基,所述
萘基和苯基可以选择性地被取代; 而杂芳基是
喹啉基,
异喹啉基,
吡啶基,
噻吩基,
吲哚基,2,3-二氢-1,4-苯并二氧杂环基,
2,3-二氢苯并呋喃基或苯并二氧杂环基; 所述杂芳基可以选择性地被取代; 它进一步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)中含有放射性同位素的化合物; 标记
多巴胺D4受体位点的过程; 以及成像器官的过程。