Aminoalkylpyrrolidine serotonin receptor ligands and compositions, their pharmaceutical uses, and methods for their synthesis
CA 2425286 A1 · Owner: Rui, Yuanjin · Inventors: Rui, Yuanjin; Hong, Yufeng; Peng, Zhengwei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel aminoalkylpyrrolidine 5-HT7 receptor ligands methods of preparing such , ligands, intermediate compounds useful in the preparation of the receptor ligands, pharmaceutical compositions comprising the receptor ligands and , methods of treating sleep disorders pain, depression, and schizophrenia , employing the receptor ligands are disclosed. The receptor ligands have formula (1): wherein the formula variables are as defined herein and , pharmaceutically acceptable salts solvates, active metabolites, or prodrugs thereof.
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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 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2023.
- 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.