Novel tricyclic n-cyanoimines useful as inhibitors of farnesyl-protein transferase
CA 2261724 C · Owner: Doll, Ronald J. · Inventors: Doll, Ronald J.; Girijavallabhan, Viyyoor M.; Wang, James J-S
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel tricyclic N-cyanoimine compound and pharmaceutical compositions are disclosed which are inhibitors of the enzyme farnesyl-protein transferase. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering the novel tricyclic N-cyanoimines compound to a biological system. In particular, the method inhibits the abnormal growth of cells in mammals such as a human; the novel Tricyclic N-cyanoimine compounds are of formula:
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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 July 29, 1997 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2019.
- 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.