Antipicornaviral compounds and compositions, their pharmaceutical uses, and materials for their synthesis
CA 2392504 A1 · Owner: Prins, Thomas J. · Inventors: Johnson, Theodore O. Jr.; Dragovich, Peter S.; Prins, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I), where the formula variables are as defined herein are disclosed that advantageously inhibit or block the biological activity of the picornaviral 3C protease. Also disclosed are compounds of formula (II) where the formula variables are as defined herein that advantageously inhibit or block the biological activity of the picornaviral 3C protease. These compounds, as well as pharmaceutical compositions containing these compounds are useful for treating patients or hosts infected with one or more picornaviruses, such as rhinovirus 3C proteases. Intermediates and synthetic methods for preparing such compounds are also described.
Read the whole patent
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 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2022.
- 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.