Compounds having formula I, or salts or prodrugs thereof: ##STR1## are selective agonists of the 5-HT.sub.1D.alpha. receptor and are useful in the treatment of migraine and associated conditions.
具有
化学式I的化合物,或其盐或前药:##STR1## 是5-HT.sub.1D.alpha.受体的选择性激动剂,可用于治疗偏头痛及相关疾病。