Compounds of formula (I) ##STR1## wherein R and R.sup.1 are hydrogen, C.sub.1-4 alkyl or are linked to form a ring, A is a cycloalkyl or alkyl-cycloalkyl group, n is an integer from 0 to 3, W is an optionally substituted 5-or 6-membered heterocyclic ring; or W is an optionally substituted aryl, heteroaryl, aryloxy or thiophenoxy group; or W is a group --SO.sub.2 NR.sup.6 R.sup.7 --NHC(O)R.sup.6 R.sup.7 or --C(O)NHR.sup.6 R.sup.7 ; are useful in treating clinical conditions for which a "5-HT.sub.1 -like" receptor agonist is indicated.
化合物的公式(I)##STR1## 其中R和R.sup.1为氢,C.sub.1-4烷基或连接形成环,A为环烷基或烷基-环烷基,n为0至3的整数,W为可选取代的5或6元杂环环;或W为可选取代的芳基,杂芳基,芳氧基或
噻吩氧基;或W为--SO.sub.2 NR.sup.6 R.sup.7 --NHC(O)R.sup.6 R.sup.7或--C(O)NHR.sup.6 R.sup.7的基团;在治疗需要“5-HT.sub.1-类”受体激动剂的临床情况中有用。