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Expired Canadian patentCanada

Acylated enamide compounds, pharmaceutical compositions containing these, use of these compounds and process for the preparation of these compounds

CA 1249999 A · Owner: Biotec · Inventors: Viehe, Heinz; Roberfroid, Marcel; Hervens, Francoise

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Abstract From the Canadian patent

Acylated enamide compounds, pharmaceutical compositions containing these and use of these compounds The acylated enamide compounds are acylated enamides corresponding to the general formula, in which Z represents an electron donor group, n is 1 2 or 3, and, R1 represents hydrogen, a halogen or any organic group, or salts, complexes, alkylated derivatives or acylated derivatives of these compounds. Typical acylated enamide compounds according to the invention correspond to the formula These acylated enamide compounds and the pharmaceutical compositions containing the compounds are useful in the prevention and treatment of cancers. No figure

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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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 26, 1984
GrantedFebruary 14, 1989
Term endedFebruary 14, 2006
Patent numberCA 1249999 A
Classification (IPC)C07C235/34 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedJune 26, 1984Patent grantedFeb 14, 1989Term endedFeb 14, 2006

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.