Carboxymide derivatives and their use in the treatment of thromboembolic diseases and tumours
CA 2431766 A1 · Owner: Barnes, Christopher · Inventors: Dorsch, Dieter; Gleitz, Johannes; Cezanne, Bertram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of formula (I) wherein the variables have , the following meanings: D means a phenyl or a pyridyl which is unsubstituted or is mono- or polysubstituted by Hal, A OR2, N(R2)2, NO2, CN, COOR2 or , CON(R2)2; R1 means H Ar, Het, cycloalkyl or A, which can be substituted by OR2, SR2, N(R2)2, Ar, Het, cycloalkyl, CN COOR2 or CON(R2)2; R2 means H or A, E means phenylene which can be mono- or polysubstituted by Hal A, OR2, N(R2)2, NO2, CN, COOR2 or CON(R2)2 or piperidin-1,4-diyl W means AR, Het or , N(R2)2 and if E=piperidin-1,4-diyl also R2 or cycloalkyl; and X means NH or O. These compounds are inhibitors of the coagulation factor Xa and can be used for 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 November 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2023.
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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.