2-aminoquinoline derivatives having d4-agonistic activity
CA 2320116 C · Owner: Duphar International Research Bv · Inventors: Visser, Gerben M.; Van Steen, Bartholomeus J.; Ronken, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a group of novel 2-aminoquinoline derivatives which are potent and selective agonists of the dopamine D4-receptor. The compounds have general formula (I) wherein (R1)n represents 1 or 2 substituents, which can be the same or different from the group C1-3-alkyl or , alkoxy, halogen trifluoromethyl, nitro, amino, and mono- or dialkyl (C1-2)amino, or two groups R1 at adjacent carbon atoms together with the benzene ring may form the benzdioxane group or benzofuran group X represents nitrogen , or carbon, and the dotted line may represent a double bond (R2)p represents , 0, 1 or 2 substituents which can be the same or different, from the group methyl and …
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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 February 5, 1999 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2021.
- 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.