申请人:Merck, Sharp & Dohme, Ltd.
公开号:US05684006A1
公开(公告)日:1997-11-04
A class of substituted isoxazole and pyrazole derivatives of formula (I), or a salt thereof of or a prodrug thereof, wherein the broken circle represents two non-adjacent double bonds whereby the five-membered ring containing X and Y is aromatic; one of X and Y represents nitrogen, and the other of X and Y represents oxygen or N--R.sup.5 ; R.sup.1 represents hydrogen, C.sub.1-6 alkyl or trifluoromethyl; R.sup.2 and R.sup.3 independently represent hydrogen, hydrocarbon, a heterocyclic group, halogen, cyano, trifluoromethyl, nitro, --OR.sup.a, --SR.sup.a, --SOR.sup.a, --SO.sub.2 R.sup.a, --SO.sub.2 NR.sup.a R.sup.b, --NR.sup.a R.sup.a, --NR.sup.a CO.sub.2 R.sup.b, --COR.sup.a, --CO.sub.2 R.sup.a or --CONR.sup.a R.sup.b, R.sup.4 represents hydrocarbon or a heterocyclic group; R.sup.5 represents hydrogen or C.sub.1-6 alkyl; and R.sup.a and R.sup.b independently represent hydrogen, hydrocarbon or a heterocyclic group, are ligands for dopamine receptor subtypes within the body and are therefore useful in the treatment and/or prevention of disorders of the dopamine system, in particular schizophrenia. ##STR1##
一类取代异噁唑和吡唑衍生物的化学式(I)或其盐或前药,其中断圈代表两个非相邻的双键,五元环含有X和Y是芳香的;X和Y中的一个代表氮,另一个代表氧或N-R.sup.5;R.sup.1代表氢、C.sub.1-6烷基或三氟甲基;R.sup.2和R.sup.3独立地代表氢、碳氢化合物、杂环基团、卤素、氰基、三氟甲基、硝基、--OR.sup.a、--SR.sup.a、--SOR.sup.a、--SO.sub.2 R.sup.a、--SO.sub.2 NR.sup.a R.sup.b、--NR.sup.a R.sup.a、--NR.sup.a CO.sub.2 R.sup.b、--COR.sup.a、--CO.sub.2 R.sup.a或--CONR.sup.a R.sup.b,R.sup.4代表碳氢化合物或杂环基团;R.sup.5代表氢或C.sub.1-6烷基;R.sup.a和R.sup.b独立地代表氢、碳氢化合物或杂环基团,是体内多巴胺受体亚型的配体,因此在治疗和/或预防多巴胺系统紊乱,特别是精神分裂症方面具有用途。