1-(aminophenyl)-2-aminoethanone derivatives, the method for their preparation and their use in therapy
CA 1297909 C · Owner: Lafon, Louis · Inventors: Lafon, Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PATENT APPLICATION, entitled: 1-(Aminophenyl)-2-aminoethanone derivatives. in the name of: Société anonyme dite : LABORATOIRE L. LAFON, inventor: Louis LAFON, ABSTRACT OF THE DISCLOSURE The present invention relates to the preparation of new derivatives selected from the group consisting of:, (i) 1-(aminophenyl)-2-(alkylamino)ethanones of the formula:, (I), in which R is CH(CH3)2 or C(CH3)3; and (ii) addition salts thereof. These new derivatives are useful in therapy in, particular as antidepressants or stimulants for the CNS. They are prepared from 1-(acetylaminophenyl)-2- (alkylamino)ethanone derivatives by deacetylation.
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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
- Granted March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.