Synthetic routes for the preparation of rhinovirus protease inhibitors and key intermediates
CA 2376452 A1 · Owner: Bender, Steven Lee · Inventors: Nayyar, Naresh K.; Moran, Terence Jarold; Tao, Junhua
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Efficient synthetic routes for the preparation of rhinovirus protease inhibitors of formula (I), as well as key intermediates usefull in those synthetic routes. These compounds of formula (I) as well as pharmaceutical , compositions that contain these compounds are suitable for treating patients , or hosts infected with one or more picornaviruses.
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 August 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 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.