Anthranilamides, process for their preparation, their use as antiarrhythmics, and pharmaceutical preparations thereof
CA 2445341 C · Owner: Hemmerle, Horst · Inventors: Pirard, Bernard; Kleemann, Heinz-Werner; Brendel, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to anthranilic acid amides to a method for the , production thereof to their use as a medicament, and to pharmaceutical preparations containing these anthranilic acid amides. The anthranilic acid amides consist of compounds of formula (I) in which R(1) to (R7) have the meanings as cited in the claims, act upon the Kv1.5 potassium channel and , inhibit a potassium stream described as an "ultra-rapidly activating delayed rectifier" in the human cardiac atrium. The compounds are therefore especially suited as novel antiarrhythmic active substances particularly for treating , and preventing atrial arrhythmias e.g. atrial fibrillation AF or atrial flutter.
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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 April 13, 2002 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 13, 2024.
- 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
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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.