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Expired Canadian patentCanada

1-isopropylamino-3-(4'-(2-alkoxycarbonyl-aminoethoxy)-phenoxy)-propan-2-01

CA 1048526 A · Owner: Ab Hassle · Inventors: Berntsson, Peder B.; Samuelsson, Gustav B. R.

CIPO record

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Abstract From the Canadian patent

The invention relates to new amines of the formula I: (I), wherein R is methyl or ethyl, as well as a process for their preparation. The new compounds have valuable pharmacological properties. Thus they block cardial, .beta.-receptors, which is shown at the determination of the antagonism of tachycardy after an intravenous injection of 0.5 µg/kg of d/1-isoproterenol sulphate on an anaesthetized cat at an intravenous dose of 0.002 to 2 mg/kg. Thus they, block the vascular .beta.-receptors which is shown at the determination of the antagonism of vascodilation after an intravenous injection of 0.5 µg/kg of d/l-isoproterenol sulphate on an anaesthetized cat at an intravenous dose of 3 mg/kg or …

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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 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 13, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 13, 1979
Term endedFebruary 13, 1996
Patent numberCA 1048526 A
Classification (IPC)C07D303/24 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 13, 1979Term endedFeb 13, 1996

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