Benzoxazolinones
CA 1208220 A · Owner: Riom Laboratoires - Cerm S.A. · Inventors: Busch, Norbert; Caignard, Daniel H.; Lesieur, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of the formula:, in which R represents hydrogen or a lower alkyl radical and R1 and R2 separately represent hydrogen a lower alkyl, cycloalkyl or benzyl radical or, represent, together with the nitrogen atom to which they are bonded, a heterocyclic radical such as a morpholino, 4-(pyrimidin-2-yl)-piperazinyl or 4-phenylpiperazinyl the phenyl radical of which being optionally substituted by halogen lower alkoxy, or trifluoromethyl, having CNS activity and particularly hypnotic properties. Moreover the compounds inwhich R1 and R2 are hydrogen can be used in the treatment of heart failure.
Read the whole patent
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 July 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 2003.
- 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.