申请人:Pfizer Inc.
公开号:US05783572A1
公开(公告)日:1998-07-21
Compounds of formula (I): ##STR1## and their pharmaceutically acceptable salts, wherein R.sup.1 and R.sub.2 are each independently Cl, Br, CH.sub.3, CH.sub.2 CH.sub.3 or CF.sub.3 ; R.sup.3 is H, CH.sub.3 or CH.sub.2 CH.sub.3 ; and X is a 5-membered heterocyclic group containing up to four nitrogen atoms, attached via a nitrogen atom, the said group being optionally substituted by C.sub.1 -C.sub.6 alkyl or (CH.sub.2).sub.n NR.sup.4 R.sup.5, wherein n is an integer from 1 to 5 and R.sup.4 and R.sup.5 are each independently H, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl or C.sub.1 -C.sub.4 alkyl substituted by phenyl or pyridyl, or R.sup.4 and R.sup.5 are linked to form, together with the nitrogen atom to which attached, a pyrrolidine, piperidine, piperazine, N-(C.sub.1 -C.sub.4 alkyl) piperazine, morpholine or azepine group, or, when X is triazolyl, said group may optionally be benzofused, are NMDA antagonists of value in the treatment of acute neurodegenerative disorders, e.g. arising from stroke or traumatic head injury and in chronic neurological disorders, e.g. senile dementia and Alzheimer's disease.
式(I)的化合物及其药学上可接受的盐,其中R.sup.1和R.sub.2各自独立地为Cl、Br、CH.sub.3、CH.sub.2 CH.sub.3或CF.sub.3;R.sup.3为H、CH.sub.3或CH.sub.2 CH.sub.3;X为通过氮原子连接的含有最多四个氮原子的5-成员杂环基团,该基团可选地被C.sub.1-C.sub.6烷基或(CH.sub.2).sub.nNR.sup.4R.sup.5取代,其中n是从1到5的整数,R.sup.4和R.sup.5各自独立地为H、C.sub.1-C.sub.6烷基、C.sub.3-C.sub.6环烷基或被苯基或吡啶基取代的C.sub.1-C.sub.4烷基,或者R.sup.4和R.sup.5连接在一起,与连接的氮原子一起形成吡咯烷、哌嗪、哌嗪二氮杂环、N-(C.sub.1-C.sub.4烷基)哌嗪、吗啉或氮杂庚烷基团,或者当X为三唑基时,该基团可选地被苯并,是NMDA拮抗剂,对于急性神经退行性疾病的治疗具有价值,例如由中风或创伤性头部损伤引起的疾病,以及慢性神经系统疾病,例如老年性痴呆和阿尔茨海默病。