Described herein are D4 receptor-selective compounds of the general formula: ##STR1## wherein X.sub.1 is selected from CH.sub.2, NH, O and S; X.sub.2 - - is selected from CH.dbd., CH.sub.2 13 , and N.dbd.; R.sub.1 to R.sub.8 are each independently selected from H, C.sub.1-4 alkyl, halo, cyano, nitro and halo-substituted C.sub.1-4 alkyl and acid addition salts, solvates and hydrates thereof. Their use as ligands for dopamine receptor identification and in a drug screening program, and as pharmaceuticals to treat indications in which the D4 receptor is implicated, such as schizophrenia, is also described.
本文描述了一般式为:##STR1## 的
D4受体选择性化合物,其中X.sub.1从CH.sub.2、NH、O和S中选择;X.sub.2-从CH.dbd.、CH.sub.2 13和N.dbd.中选择;R.sub.1到R.sub.8各自独立地选择自H、C.sub.1-4烷基、卤、
氰、硝基和卤代C.sub.1-4烷基以及它们的酸加合物、溶剂化合物和
水合物。本文还描述了它们作为
多巴胺受体
配体用于鉴定和药物筛选计划,以及作为药物治疗
D4受体所涉及的精神分裂症等适应症的用途。