Oxo or oxy-pyridine compounds as 5-ht4 receptor modulators
CA 2415591 A1 · Owner: Morita, Mikio · Inventors: Morita, Mikio; Uchida, Chikara; Stobie, Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides compounds of the formula (I) and (II): or the pharmaceutically acceptable esters thereof and the pharmaceutically , acceptable, salts thereof wherein R1 is hydrogen or halo; R2 and R3 are independently hydrogen, or C1-6 alkyl; R4 and R5 are independently hydrogen or C1-6 alkyl; R6 is hydrogen, C1-, 12 alkyl, C1-6 alkoxy (C1-6)alkyl or C1-12 alkyl substituted by up to 3 substituents, selected from the groups consisting of C3-8 cycloalkyl aryl, heteroaryl and, heterocyclic; R7 and R8 are hydrogen or taken together may form alkylene chain having one or two carbon atoms; R9 is C1-6 alkyl or C3-8 cycloalkyl; R10 is C1- 6 alkyl or, NR11R12 ; L is (CR11R12)n or NR11 ; M …
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 January 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.