A class of substituted 1,2,4-triazolo[4,3-b]pyridazine derivatives, possessing a difluoro- or trifluoro-substituted phenyl ring at the 3-position, a triazolyl-methoxy moiety at the 6-position, and a tert-butyl group at the 7-position, are selective ligands for GABA
A
receptors, in particular having high affinity for &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.
一类替代了
1,2,4-三唑并[4,3-b]
吡啶嗪衍
生物,其在3位具有二
氟或三
氟取代的苯环,6位有三唑基甲氧基官能团,7位有叔丁基基团,是
GABAA受体的选择性
配体,特别是对其α2和/或α3亚单位具有高亲和力,因此对于中枢神经系统疾病的治疗和/或预防,包括焦虑和惊厥,具有益处。