.beta.-phenylalanine derivatives as integrin antagonists
CA 2360356 A1 · Owner: Stelte-Ludwig, Beatrix · Inventors: Stelte-Ludwig, Beatrix; Albers, Markus; Muller, Gerhard
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 compounds of general formula (1) wherein R4 , is -SO2R4', -COOR4", -COR4' -CONR4'2 or -CSNR4'2; R4' is hydrogen, a substituted or unsubstituted alkyl or cycloalkyl residue a substituted or , unsubstituted aryl residue or a saturated or unsaturated optionally , substituted heterocyclic residue; R4" is a substituted or unsubstituted alkyl or cycloalkyl residue, a substituted or unsubstituted aryl residue or a saturated or unsaturated, optionally substituted heterocyclic residue; L is a sulphonamide, amide, ether, ester, keto urea, thioether, sulphoxide or , sulphone unit optionally extended by one or two methylene groups; and X is N O or S; and their …
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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 January 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 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
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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.