6-azauracil derivatives as il-5 inhibitors
CA 2294533 A1 · Owner: Diels, Gaston Stanislas Marcella · Inventors: Diels, Gaston Stanislas Marcella; Van Wauwe, Jean Pierre Frans; Freyne, Eddy Jean Edgard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is concerned with the use of compounds of formula (I): the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof wherein p represents 0, 1, 2 or 3; q , represents 0 1, 2, 3 or 4; R1 represents hydrogen, C1-6alkyl mono- or di(C1-, 6alkyl)aminoC1-6alkyloxy mercapto, C1-6alkylthio, C3-7cycloalkyl aryl or C1-, 6alkyl substituted with mono- or di(C1-6alkyl)-amino C1-6alkyloxy, aryl or , Het; R2 represents cyano or a radical of formula -C(=X)-Y-R5; wherein X represents O or S; Y represents O, S, NR6 or a direct bond; R5 represents hydrogen; C3-7cycloalkyl; aryl or optionally substituted C1-6alkyl; and where Y is a …
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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 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2020.
- 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.