Tetrahydropyran derivatives and their use as therapeutic agents
CA 2459464 A1 · Owner: Castro Pineiro, Jose Luis · Inventors: Shaw, Duncan Edward; Williams, Brian John; Castro Pineiro, Jose Luis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates compounds of the formula (I); wherein R1 R2, R3, R4, R5, R6, R7, R8 and R10 repre sent a variety of substituents; A represents NR9 or O; B represents a bond CH2, NR9 or O, wherein one or both , hydrogen atoms in said CH2 moiety may be replaced with one or both of R7 and R8, or alternatively, one of the hydrogen atoms in said CH2 moiety together with a hydrogen atom from an adjacent carbon are replaced by a double bond; with the proviso that when A is O, then B is NR9; n is zero 1 or 2; and , pharmaceutically acceptable salts thereof. The compounds are of particular use in the treatment or prevention of depression anxiety, pain, inflammation, migaine, …
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 September 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2024.
- 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.