申请人:Merck Sharp & Dohme Ltd.
公开号:US06730676B2
公开(公告)日:2004-05-04
A class of pyrazino[2,3-d]pyridazine derivatives, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 5-position, a substituted alkoxy moiety at the 3-position, and a range of substituents at the 2-position, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 and/or &agr;5 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
一类吡嗪并[2,3-d]吡啶嗪衍生物,其在5-位置具有可选取代的环烷基、苯基或杂环芳基取代基,在3-位置具有取代的烷氧基,且在2-位置具有一系列取代基,是选择性的GABAA受体配体,特别是具有高亲和力的α2和/或α3和/或α5亚基,因此对于中枢神经系统的不良症状的治疗和/或预防具有益处,包括焦虑、惊厥和认知障碍。