1-phenyl-benzimidazole compounds and their use as gaba-a receptor modulators
CA 2267114 A1 · Owner: Watjen, Frank · Inventors: Watjen, Frank; Teuber, Lene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel benzimidazole compounds represented by , general formula (I) in which o is 0 1, 2, or 3; R1 represents an alkyl group a phenyl group, or a monocyclic heterocyclic group which groups may be , substituted one or more times with substituents selected from alkyl cycloalkyl, cycloalkyl-alkyl, alkoxy, halogen trifluoromethyl, cyano, amino, and nitro; or R1 represents a cyano group or a group of the formula -alkyl- CO2R2, alkenyl-CO2R2, -CO-R2, -CO2(CH2)mR2 or -C(R3)=N-OR2, R11 represents a , group of formula -CO2-R9 or R11 represents a group of general formula (II) in which n is 0, 1, 2 or 3; or R11 may represent a group of general formula (III), in which …
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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 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2019.
- 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.