4-aryl(piperidin-4-yl) aminobenzamides which bind to the delta-opioid receptor
CA 2316341 A1 · Owner: Carson, John R. · Inventors: Jetter, Michele C.; Reitz, Allen B.; Carmosin, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4-aryl(piperidin-4-yl) aminobenzamides are delta-opioid receptor agonists/antagonists of formula (I). As delta-opioid receptor agonists such , compounds are useful as analgesics. Depending on their agonist/antagonist effect, such compounds may also be useful immunosuppressants antiinflammatory , agents, agents for the treatment of mental illness medicaments for drug and , alcohol abuse agents for treating gastritis and diarrhea cardiovascular , agents, and agents for the treatment of respiratory diseases. In formula (I) Ar is phenyl, 1-naphthyl or 2-naphthyl each optionally substituted with 1 to 3 R7; R1 - R8 are described in the application.
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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 December 23, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2020.
- 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.