Substituted bicyclic bis-aryl compounds exhibiting selective leukotriene b4 antagonist activity, their preparation and use in pharmaceutical compositions
CA 2087848 A1 · Owner: Hendel, Wolfram · Inventors: Hendel, Wolfram; Dereu, Norbert; Labaudiniere, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to compounds having selective LTB4 antagonist properties and comprising an aryl or heteroaryl mono- or bicyclic ring which has at least two substituents attached thereto; (1) a substituted or unsubstituted aryl or heteroaryl mono- or bicyclic ring and (2) a substituent chain having a terminal carboxylic acid functional group or derivative thereof attached thereto. This invention further relates to processes for their preparation and therapeutic compositions comprising said compound and methods for the treatment of disorders involving LTB4 agonist-mediated activity utilizing said compositions wherein the compounds are described by general formula (I) and …
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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 July 18, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2013.
- 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
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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.