A class of 8-fluoro-3-phenylimidazo[1,2-a]pyridine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group, or by a pyrrolidinonyl group, which is directly attached or bridged by an oxygen atom or by a —NH— or —OCH
2
— linkage, being selective ligands for GABA
A
receptors, in particular having high affinity for the α2 and/or α3 and/or α5 subunit thereof, are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
一类8-
氟-3-苯基
咪唑[1,2-a]
吡啶衍生物,取代苯环的间位的芳基或杂环基或
吡咯烷基,可以是可选的取代基,或是直接通过氧原子或- NH-或-OCH2-连接桥接,是
GABAA受体的选择性
配体,特别是具有对其α2和/或α3和/或α5亚基高亲和力,因此有益于治疗和/或预防中枢神经系统的不良症状,包括焦虑,抽搐和认知障碍。