3-(4,5,6,7-tetrahydroindol-2-ylmethylidiene)-2-indolinone derivatives as kinase inhibitors
CA 2459879 A1 · Owner: Tang, Peng Cho · Inventors: Liang, Congxin; Guan, Huiping; Tang, Peng Cho
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 3-(4,5,6,7-tetrahydroindol-2-ylmethylidene)-2indolinone derivatives of formula I, wherein R1 R4 are defined herein that , inhibit kinases, in particular Src kinase Pharmaceutical compositions , comprising these compounds methods of treating diseases mediated by kinase utilizing pharmaceutical compositions comprising these compounds and methods , of preparing them are also disclosed.
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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 September 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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.