Radiolabelled alkylamino-benzothiazole and -benzoxazole derivatives and their use as D4 ligands
申请人:JANSSEN PHARMACEUTICA N.V.
公开号:EP1325917A1
公开(公告)日:2003-07-09
The present invention concerns the radiolabelled 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- , characterized in that the compound has at least one halo which is a radioactive isotope of iodine, bromine or fluorine, or has at least one 11C-atom or tritium atom ; it further relates to a process of marking dopamine D4 receptor sites and a process for imaging an organ.
本发明涉及放射性标记的式化合物
其中X为O或S;n为2、3、4或5;R1为氢、C1-6烷基、C1-6烷氧基或卤代;R2 是氢、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、卤代 C1-6 烷基、氨磺酰基、单-或二(C1-4烷基)氨磺酰基;或 R3 和 R4 也可以结合在一起形成式-CH=CH-CH=CH-的二价基,其特征在于该化合物具有至少一个卤素,该卤素是碘、溴或氟的放射性同位素,或具有至少一个 11C 原子或氚原子;它还涉及一种标记多巴胺 D4 受体位点的工艺和一种器官成像工艺。