4-oxo-3-(1-oxo-1h-isoquinolin-2-ylacetylamino)-pentanoic acid ester and amide derivatives and their use as caspase inhibitors
CA 2511235 A1 · Owner: Studley, John R. · Inventors: Charrier, Jean-Damien; Mortimore, Michael; Studley, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a compound of formula (I): wherein: X i s -OR1 , or -N (R5) 2 , Y is halo trifluorophenoxy, or tetrafluorophenoxy; R1 is: C1-6 straight chained or branched alkyl, alkenyl or alkynyl, wherein the alkyl, alkenyl or alkynyl is optionally substituted with optionally substituted aryl, CF3, C1, F, OMe, OEt, OCF3, CN, or NMe2; C1-6 cycloalkyl wherein 1-2 , carbon atoms in the cycloalkyl is optionally replaced with -0- or -NR5-; R2 is C1-6 straight chained or branched alkyl; R3 is hydrogen halo, OCF3, CN, or , CF3; R4 is hydrogen halo, OCF3, CN, or CF3; and each R5 is independently H C1-6 straight chained or branched alkyl aryl, -O-C1-6 straight chained or , …
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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 December 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2025.
- 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.