Acylsemicarbazides and their use as cyclin dependent kinase (cdk) inhibitors
CA 2420164 A1 · Owner: Nugiel, David A. · Inventors: Nugiel, David A.; Di Meo, Susan V.; Vidwans, Anup
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention realtes to the synthesis fo a new class of indeno 1,2cpyrazol-4-ones of formula (I): that are potent inhibitors of the class of enzymes known as cyclin dependent kinases which relate to the catalytic , subunits cdk1-9 and their regulatory subunits know as cyclins A-H. The invention also provides a novel method of treating cancer or otehr profiferative disease by administering a therapeutically effective amount of one of these compounds or a pharmaceutically acceptable salt form thereof. Alternatively, one can treat cancer or other proliferative disease by administering a therapeutically effective combination of one of the compounds of teh present invention 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 October 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2022.
- 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.