申请人:TAISHO PHARMACEUTICAL CO. LTD
公开号:EP0816362A1
公开(公告)日:1998-01-07
The present invention relates to a thiazole derivative represented by formula (I)
wherein Ar1 represents a substituted or unsubstituted phenyl or thienyl group, Y1 and Y2 are different and each represents a nitrogen atom or a sulfur atom, R1 represents a hydrogen atom, a C1 to C5 alkyl group, a phenyl group, or an amino group unsubstituted or mono- or di-substituted with a C1 to C5 alkyl group, and R2 represents a substituted or unsubstituted nitrogen heterocycle group, or a pharmaceutically acceptable salt thereof. The compound of the present invention are a dopamine D4 receptor antagonist which has an antipsychotic effect without causing any extrapyramidal disorder.
本发明涉及一种由式(I)表示的噻唑衍生物,其中Ar1代表一个取代或未取代的苯基或噻吩基团,Y1和Y2不同,每个代表一个氮原子或硫原子,R1代表一个氢原子,一个C1到C5烷基基团,一个苯基,或一个未取代或单取代或双取代的氨基基团,其取代基为C1到C5烷基基团,R2代表一个取代或未取代的氮杂环基团,或其药用可接受的盐。本发明的化合物是多巴胺D4受体拮抗剂,具有抗精神病作用,而不会导致任何锥体外症状障碍。