Substituted aryl and heteroaryl derivatives, the preparation thereof and their use as medicaments
CA 2353151 A1 · Owner: Boehringer Ingelheim Pharma Gmbh & Co. Kg · Inventors: Nar, Herbert; Kauffmann, Iris; Ries, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new substituted aryl and heteroaryl derivatives of the general formula (I) Ar - A - HCR1 - X - Y in which A, Ar, X, Y and R1 , have the meanings given in claim 1 and to their tautomers, stereoisomers, mixtures and salts notably physiologically compatible salts with inorganic or organic acids or bases, which present valuable properties. Accordingly the , compounds of the above general formula (I) in which Y does not contain a , cyano group notably have an antithrombotic action, and the compounds of the above general formula (I), in which Y does not contain a cyano group are , valuable intermediate products for the production of compounds of the general formula …
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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 December 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2021.
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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.