2-thiohydantoine derivative compounds and use thereof in therapeutics
CA 2500977 A1 · Owner: Ou, Khan · Inventors: Boubia, Benaissa; Edgar, Alan; Thomas, Didier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to 2-thiohydantoine compounds selected from (a) compounds having general formula (I), wherein one of the radicals R1 or R2 comprises in the structure thereof two aromatic rings or represents the dibenzofuranyl group, R3 represents a hydrogen atom a halogen atom, a C1-C4 , alkyl group, a C1-C4 alcoxy group a hydroxy group, a phenyl group or a benzyl group, and R4 represents a hydrogen atom a halogen atom or a C1-C4 alkyl , group (b) the addition salts of formula (I) compounds with a non-toxic acid such as the pharmaceutically-acceptable salts thereof. The invention also relates to the method of preparing the inventive compounds pharmaceutical , compositions …
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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 October 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 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
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.