Piperazine derivatives of formula
and their pharmaceutically acceptable acid addition salts are disclosed. In the formula n is 1 or 2, R is hydrogen or lower alkyl, R¹ is an aryl or nitrogen containing heteroaryl radical, R² is hydrogen or lower alkyl, R³ is aryl, C₄₋₈ alkyl or aryl(lower)alkyl and X is a functionalised group of specified meaning. The compounds exhibit activity as 5-HT1A antagonists and can be used, into alia, for the treatment of CNS disorders, such as anxiety.
式的
哌嗪衍
生物
及其药学上可接受的酸加成盐。式中 n 为 1 或 2,R 为氢或低级烷基,R¹ 为芳基或含氮杂芳基,R² 为氢或低级烷基,R³ 为芳基、C₄₋₈ 烷基或芳基(低级)烷基,X 为具有特定含义的官能团。这些化合物具有 5-HT1A 拮抗剂的活性,可用于治疗中枢神经系统疾病,如焦虑症。