Substituted pydrido\x9b1,2-a!pyrazines of general formula I wherein Ar and Ar.sup.1 represent various carbocyclic and heterocyclic aromatic rings; A represents O, S, SO, SO.sub.2, C.dbd.O, CHOH, or --(CR.sup.3 R.sup.4) and n is 0-2 as well as precursors thereto are ligands for dopamine receptor subtypes within the body and are therefore useful in the treatment of disorders of the dopamine system. ##STR1##
通用公式I中的取代
吡啶并
噻唑的化合物,其中Ar和Ar.sup.1代表各种碳环和杂环芳香环;A代表O、S、SO、SO.sub.2、C.dbd.O、CHOH,或--(CR.sup.3 R.sup.4),n为0-2,以及它们的前体是体内
多巴胺受体亚型的
配体,因此在治疗
多巴胺系统疾病中很有用。