申请人:Merck Sharp & Dohme Ltd.
公开号:US05919783A1
公开(公告)日:1999-07-06
Compounds of formula (I), or a salt or prodrug thereof, wherein Z represents an optionally substituted five-membered heteroaromatic ring selected from furan, thiophene, pyrrole, oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole, and tetrazole; E represents a chemical bond or a straight or branched alkylene chain containing from 1-4 carbon atoms; Q represents a straight or branched alkylene chain containing from 1-6 carbon atoms; T represents nitrogen or CH; R.sup.1 represents aryl(C.sub.1-6)alkyl or heteroaryl(C.sub.1-6)alkyl, either of which groups may be optionally substituted; and R.sup.2 represents hydrogen or C.sub.1-6 alkyl are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.alpha. receptor subtype whilst possessing at least a 10-fold selective affinity for the 5-HT.sub.1D.alpha. receptor subtype relative to the 5-HT.sub.1D.beta. subtype; they are therefore useful in the treatment and/or prevention of clinical conditions, in particular migraine and associated disorders, for which a subtype-selective agonist of 5-HT.sub.1D receptors is indicated, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists. ##STR1##
公式(I)的化合物,或其盐或前药,其中Z代表可选取的取代的五元杂环芳基环,选自
呋喃、
噻吩、
吡咯、
噁唑、
噻唑、
异噁唑、异
硫唑、
咪唑、
吡唑、
噻二唑、
咪唑二唑、三唑和
四唑;E代表
化学键或含有1-4个碳原子的直链或支链烷基链;Q代表含有1-6个碳原子的直链或支链烷基链;T代表氮或CH;R.sup.1代表芳基(C.sub.1-6)烷基或杂芳基(C.sub.1-6)烷基,其中任一组可能被可选地取代;R.sup.2代表氢或C.sub.1-6烷基,是5-HT.sub.1样受体的选择性激动剂,是人类5-HT.sub.1Dα受体亚型的强效激动剂,同时相对于5-HT.sub.1Dβ亚型具有至少10倍的选择性亲和力;因此,它们在治疗和/或预防临床疾病方面是有用的,特别是偏头痛和相关疾病,这些疾病需要5-HT.sub.1D受体亚型选择性激动剂,同时引起的副作用较少,尤其是不良心血管事件,相对于非亚型选择性5-HT.sub.1D受体激动剂。