Substituted arylamines and heteroarylamines, their preparation process and pharmaceutical composition containing them
CA 2019622 C · Owner: Chicheportiche, Robert Rubin · Inventors: Privat, Alain; Costentin, Jean; Chicheportiche, Robert Rubin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to substituted arylamines and heteroarylamines, their preparation process and the pharmaceutical composition containing them. Said substituted amine is in accordance with the formula:, in which R1 and R2 are optionally substituted alkyl radicals or form with N an optionally substituted piperazine or piperidine cycle, R3 and R4 represent a hydrogen atom or an organic radical, Y represents CR6 or N and R5 is an optionally substituted benzothiophenyl, benzofuranyl or naphthyl radical. These amines can be used in pharmaceutical compositions for the treatment of nervous depression or for stimulating vigilance.
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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 22, 1990 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2012.
- 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.