Novel compounds derived from .alpha.-d-xylose, preparation method and therapeutic use
CA 2335799 A1 · Owner: Edgar, Alan Dunlap · Inventors: Edgar, Alan Dunlap; Barberousse, Veronique; Legendre, Christiane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns .alpha.-D-xylose compounds as novel industrial , products, corresponding to formula (I) wherein: X and Y represent independently of each other, an oxygen atom or a sulphur atom; R1 represents a CN, CF3, SO2CH3 group; and R represents a hydrogen atom or an aliphatic acyl group comprising 2 to 5 carbon atoms. The invention also concerns the preparation method and the therapeutic use of said compounds of formula (I).
Read the whole patent
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 June 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2021.
- 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.