Quinoline derivatives, having in particular antiviral properties, preparation and biological applications thereof
CA 2286385 C · Owner: Mekouar, Khalid · Inventors: Desmaele, Didier; Mouscadet, Jean-Francois; Mekouar, Khalid
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns quinoline derivatives of formula (I) in which: R¿a? R¿b? and R¿c?, identical or different represent one or several substituents themselves identical or different, in any position on the cycles this or these substituents being selected among a -(CH¿2?)¿n? -Y or -CH = CH-Y group in which Y is halogen, -OH, -OR, -COH, -COR -COOH, -COOR, -COH, -COR, -CONH¿2?, -CON(R¿x? R¿y?) -CH = NOH, -CO- -CH = NOH, -NH¿2? -N(R¿x?, R¿y?), -NO¿2?, -PO(OR)¿2?-SH¿2? -SR, -SO¿2?R, -SO¿2?NHR, CN, or Z(R¿c?) in which R is a C1-C8 alkyl or aryl or a heterocyclic compound, R¿x? and R¿y? identical or different are C1-C5 alkyl Z an aryl or heterocyclic compound and n is nil or a whole number …
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
- Filed April 7, 1998 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2020.
- 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.