2-methyl piperazine derivatives for treatment of serotonin-related disorders
CA 2723494 C · Owner: Proximagen Limited · Inventors: Loefstroem, Claes; Nygren, Alf; Andersson, Emma
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process for the preparation of compounds which are therapeutically active in the central nervous system. In one aspect the invention , relates to a process for the preparation of compounds of the general formula (I). , (see formula I) , The invention also relates to (2R)-1-(3-chloro-2-pyrazinyl)-2--methylpiperazine hydrochloride and a process , for preparing the same. Another object of the present invention is a compound of the formula (I). Another object of the present invention is , a method for the treatment or prophylaxis of a serotonin-related disorder comprising , administering to a subject in need thereof an effective amount of the compound …
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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 June 18, 2003 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 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.