Abstract: The invention provides certain pyrrolo-, thieno-, furano- and pyrazolo-[3,4-d]pyridazinones, processes for their preparation, pharmaceutical compositions containing them, a process for preparing the pharmaceutical compositions, and methods of treatment involving their use.
Type:
Grant
Filed:
January 12, 1999
Date of Patent:
January 29, 2002
Assignee:
AstraZeneca AB
Inventors:
John Bantick, Martin Cooper, Philip Thorne, Matthew Perry
Abstract: 1,2,4-triazolo[4,3-b]pyridazine derivatives, represented by
wherein Z represents cyclobutyl, 1-methylcyclopentyl or pyrrolidin-1-yl, are selective ligands for GABAA receptors, in particular having high affinity for the &agr;2 and/or &agr;3 subunit thereof, are useful in the treatment of anxiety and convulsions.
Type:
Grant
Filed:
June 28, 2000
Date of Patent:
September 18, 2001
Assignee:
Merck Sharp & Dohme Limited
Inventors:
Timothy Harrison, Timothy Jason Sparey, Martin Richard Teall