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##
通式I中的取代的
吡啶并[1,2-a]
嘧啶,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.3R.sup.4),n为0-2,以及其前体是体内
多巴胺受体亚型的
配体,因此在
多巴胺系统障碍的治疗中非常有用。##STR1##