Piperazine derivative of formula
and the pharmaceutically acceptable acid addition salts, where A is an alkylene chain of 1 or 2 carbon atoms optionally substituted by one or more lower alkyl groups, m is 0, 1 or 2, R is hydrogen or lower alkyl, R¹ is aryl or a mono- or bicyclic heteroaryl radical, R² is hydrogen or lower alkyl, R³ is a heteroaryl radical, R⁴ is hydrogen, lower alkyl or aryl, and R⁵ is hydrogen, lower alkyl, cycloalkyl, cycloalkyl(lower)alkyl, aryl, or aryl(lower)alkyl or R⁴ and R⁵ together with the nitrogen atom to which they are both attached represent a saturated heterocyclic ring which may contain a further hetero atom are 5-HT1A- binding agents and may be used, for example, as anxiolytics.
式中的
哌嗪衍
生物
及其药学上可接受的酸加成盐,其中 A 是 1 或 2 个碳原子的亚烷基链,可选择被一个或多个低级烷基取代,m 是 0、1 或 2,R 是氢或低级烷基,R¹ 是芳基或单环或双环杂芳基,R² 是氢或低级烷基,R³ 是杂芳基,R⁴ 是氢、R⁴和 R⁵连同它们所连接的氮原子代表一个饱和杂环,该杂环可包含另一个杂原子,它们是 5-HT1A 结合剂,可用作
抗焦虑药等。