Antagonist of melanin-concentrating hormone receptor comprising benzimidazole derivative as active ingredient
CA 2494102 A1 · Owner: Iwaasa, Hisashi · Inventors: Moriya, Minoru; Fukami, Takehiro; Kanatani, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Benzimidazole derivative of the general formula: I wherein each of B1 B2 , and B3 represents a hydrogen atom or a lower alkyl; R1 and R2 may be identical with or different from each other and represent lower alkyls etc.; each of R3 , and R4 represents a hydrogen atom etc.; W represents a 3 to 8-membered , aromatic or aliphatic heterocycle etc.; and Ar represents a substituted or unsubstituted aromatic heterocycle, etc. This compound functions as an antagonist of melanin-concentrating hormone receptor and is useful as a drug for central diseases, circulatory diseases and metabolic diseases.
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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 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 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
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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.