Imidazole compounds as anti-inflammatory and analgesic agents
CA 2481532 A1 · Owner: Iguchi, Satoru · Inventors: Iguchi, Satoru; Hirano, Misato; Yamagishi, Tatsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a compound of the formula (1) wherein: R1 represents a hydrogen atom, an alkyl group, etc.; R2 represents a hydrogen atom a halogen , atom, etc.; R3 represents a hydrogen atom an alkyl group, etc.; R4 represents , an aryl group etc.; A represents an aryl1, etc; B represents an alkylene etc.; X represents NH, etc.; or a phannaceutically acceptable ester of such compound, and pharmaceutically acceptable salts thereof. These compounds are useful for the treatment of medical conditions mediated by prostaglandins such as pain, fever or inflammation, etc. This invention also provides a pharmaceutical composition comprising the above compound.
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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 April 2, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 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.