A class of 1-\x9b3-(1H-indol-3-yl)propyl!-4-(2-phenylethyl) piperazine derivatives, substituted at the 5-position of the indole nucleus by a five-membered heteroaromatic moiety, and on the phenyl ring of the phenethyl moiety by fluoro, chloro, trifluoromethyl, alkoxy or an oxazolidinone group and optionally by one or two further substituents, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D .alpha. receptor subtype while possessing at least a 10-fold selective affinity for the 5-HT.sub.1D .alpha. receptor subtype relative to the 5-HT.sub.1D .alpha. subtype; they are therefore usefull 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, while eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists.
一类1-\x9b3-(1H-
吲哚-3-基)丙基!-4-(2-苯乙基)
哌嗪衍
生物,取代
吲哚核的5位异芳香基团,以及苯乙基团的苯环上通过
氟、
氯、三
氟甲基、烷氧基或
噁唑烷酮基团和可选地通过一个或两个进一步的取代基,是5-HT.sub.1-类受体的选择性激动剂,是人类5-HT.sub.1D .alpha.受体亚型的有效激动剂,同时相对于5-HT.sub.1D .alpha.亚型至少具有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,特别是偏头痛及相关疾病,这些疾病需要5-HT.sub.1D受体的亚型选择性激动剂,同时引起的副作用较少,特别是不良心血管事件,而这些事件与非亚型选择性5-HT.sub.1D受体激动剂相关。