Phenylalkyl derivatives, pharmaceutical compositions containing these compounds and processes for preparing them
CA 2288744 A1 · Owner: Boehringer Ingelheim Pharma Kg · Inventors: Heckel, Armin; Haaksma, Eric; Binder, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to phenylalkyl derivatives of general formula (I) in which A, B, W, Y and Ra to Rd are as defined in claim 1 their tautomers, their stereoisomers, their mixtures and their salts with valuable properties. The compounds of general formula (I), in which Rb is a hydrogen atom a nitro , group or a cyano group, are valuable intermediates for producing the other compounds of general formula (I). Furthermore the compounds having general , formula (I) in which Rb is one of the optionally substituted aminomethyl or amidino groups mentioned in claim 1, as well as their tautomers and stereoisomers, have valuable pharmacological properties in particular as , thrombin …
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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 June 22, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 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.