Imidazo-triazine derivatives as ligands for gaba receptors
CA 2484162 A1 · Owner: Hallett, David James · Inventors: Street, Leslie Joseph; Chambers, Mark Stuart; Bettati, Michela
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A class of 7-phenylimidazo1,2-b1,2,4triazine derivatives substituted at , the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group which is directly attached or bridged by an oxygen atom or a - NH- linkage, and substituted on the phenyl ring by one or two further substituents as defined herein, being selective ligands for GABAA receptors in particular having good affinity for the .alpha.2 and/or .alpha.3 and/or .alpha.5 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.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.