Isoxazole derivatives
CA 2429426 A1 · Owner: Sakai, Nozomu · Inventors: Sakai, Nozomu; Momose, Yu; Maekawa, Tsuyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the general formula (I) or their salts or prodrugs have excellent insulin secretion promoting and blood sugar decreasing effects and are lowly toxic, thus being useful as drugs, particularly preventive and therapeutic agents for diabetes and diabetic complication wherein one of R1 and R2 is , hydrogen or a substituent and the other is an optionally substituted cyclic group; W is a free valency or a divalent aliphatic hydrocarbon group; and Y is a group represented by the general formula: -OR3 (wherein R3 is hydrogen optionally substituted hydrocarbyl, an optionally substituted heterocyclic group, or optionally substituted acyl) or carboxyl which may be converted into an …
Read the whole patent
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 November 16, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2023.
- 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.