Heteroaryl amines as glycogen synthase kinase 3beta inhibitors (gsk3 inhibitors)
CA 2463822 A1 · Owner: Buijnsters, Peter Jacobus Johannes Antonius · Inventors: Embrechts, Werner Constant Johan; Koymans, Lucien Maria Henricus; Buijnsters, Peter Jacobus Johannes Antonius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention concerns a compound of formula (I) a N-oxide, a , pharmaceutically acceptable addition salt a quaternary amine and a , stereochemically isomeric form thereof wherein ring A is a 6-membered , heterocycle; R1 is hydrogen; aryl; formyl; C1-6alkylcarbonyl; optionally substituted C1-6alkyl; C1-6alkyloxycarbonyl; optionally substituted C1- 6alkyloxy C1-6alkylcarbonyl; X is a direct bond or a linker atom or group; Z is a direct bond or a linker atom or group; R2 is hydrogen C1-10alkyl, C2-, 10alkenyl, C2-10alkynyl a carbocycle or a heterocycle, each of said groups may optionally be substituted; R3 is hydrogen; hydroxy; halo; optionally substituted C1-6alkyl or C1-6alkenyl or …
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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 October 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.