Substituted 3-phenyl-5-alkoxy-1,3,4-oxadiazol-2-ones, the production thereof and their use in medicaments
CA 2477031 A1 · Owner: Petry, Stefan · Inventors: Heuer, Hubert, Otto; Schoenafinger, Karl; Petry, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to substituted 3-phenyl-5-alkoxy-1,3,4-oxadiazol-2-ones of general formula (I), wherein R1 represents C7-C22 alkyl C2-C4 alkyl that , is substituted by C4-C20 alkoxy C6-C10 aryl, C6-C10 aryloxy or C4-C12-alkoxy- C2-C4-alkoxy, and represents C7-C20 alkenyl 3.beta.-cholestan-3-yl or , substituted phenyl; R2 R3, R4 and R5 represent hydrogen, halogen nitro, C1-, C4 alkyl, C1-C9 alkyloxy, trifluoromethyl trifluoromethoxy or C6-C10-aryl-C1-, C4-alkyloxy C6-C10 aryloxy, C6-C10 aryl, C3-C8 cycloalkyl or O-C3-C8cycloalkyl, whereby all of these can be substituted. The invention also relates to methods for producing these compounds. The compounds of formula (I) have an …
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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 February 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2025.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.