Process for preparing 5-(1,3-oxazol-2-yl) benzoic acid derivatives
CA 2489988 A1 · Owner: Imbordino, Rick J. · Inventors: Reeder, Michael R.; Imbordino, Rick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are compounds of formula III and a process to prepare a compound of formula III wherein R1, R2, R3 and R6 are defined herein using a zinc , chloride/optionally substituted oxazole adduct and an compound of formula I. Further disclosed are methods of using compounds of formula III to prepare compounds useful in the treatment of Alzheimer's disease and related conditions.
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 June 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 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.