A class of substituted 1,2,4-triazolo[4,3
b
]pyridazine derivatives, possessing a fluoro-substituted phenyl ring at the 3-position and a heteroaryl-methoxy moiety at the 6-position, are selective ligands for GABA
A
receptors, in particular having high affinity for the &agr;2 and/or &agr;3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of disorders of the central nervous system, including anxiety and convulsions.
一类取代的
1,2,4-三唑并[4,3b]
吡啶嗪衍
生物,其在3位具有
氟取代苯环,在6位具有杂环甲氧基基团,是
GABAA受体的选择性
配体,特别是具有高亲和力的α2和/或α3亚基,因此对于治疗和/或预防中枢神经系统疾病,包括焦虑和惊厥,具有益处。