Mikanolide derivatives, their preparation and therapeutic uses
CA 2433981 A1 · Owner: Lavergne, Olivier · Inventors: Prevost, Gregoire; Teng, Beng Poon; Lavergne, Olivier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns novel mikanolide derivatives their preparation method and their therapeutic uses in particular as anti-cancer and anti-viral agents. The compounds correspond to general formula (I) corresponding to general sub-formulae (I)¿1? and (I)¿2? wherein: R¿1? represents H, SR¿4? or NR¿4?R¿5?; R¿2? represents SR¿6? or NR¿6?R¿7?; R¿3? represents OH O(CO)R¿14?, OSiR¿15?R¿16?R¿17?, O(CO)OR¿18? or O(CO)NHR¿18? each of the radicals R¿4?, R¿6?, R¿15? R¿16? and R¿17? representing independently (in particular) an alkyl radical the radicals R¿5? and R¿7? representing (in particular) radicals selected independently among a hydrogen atom and an alkyl radical and each of the radicals R¿14? …
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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 January 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 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
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.