Phenylalanine derivatives
CA 2368733 C · Owner: Yang, Dajun · Inventors: Yang, Dajun; Gao, Yang; Burke, Terrence R. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides phenylalanine derivatives that inhibit SH2 domain binding with a phosphoprotein. These derivatives include compounds of the formula: W-Y-(AA)n-Z wherein n is 0 to 15; Y is a phenylalanyl radical having a phenyl ring, an amine end, and a carboxyl end the phenyl ring having , one or more substituents e.g. hydroxyl, carboxyl, formyl, carboxyalkyl carboxyalkyloxy, dicarboxyalkyl, dicarboxyalkyloxy dicarboxyhaloalkyl, dicarboxyhaloalkyloxy and phosphonoalkyl, or phosphonohaloalkyl; W is a moiety attached to the nitrogen of Y and is e.g. alkylcarbonyl, oxalyl, alkylaminooxalyl arylaminooxalyl, arylalkylaminooxalyl, or alkoxyoxalyl; AA is an amino acid, the …
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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 March 23, 2000 and granted October 7, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 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.