Indole acetic acid derivatives and their use as pharmaceutical agents
CA 2523245 C · Owner: Choi, Soongyu · Inventors: Lavoie, Rico; Clark, Roger; Cantin, Louis-David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to indole acetic acid derivatives of Formula (1a) or (1b): , (see formula 1a) , (see formula 1b) wherein , R1 is H, C1-C6 alkyl, or benzyl; R2 is H or C1-C6 alkyl;, R3 is H or C1-C4 alkyl; R4 is H, C1-C4 alkyl, or C1-C4 acyl; , Y is O or NR5; R5 is H or C1-C6 alkyl optionally substituted with C3-C6 cycloalkyl; n is 2, 3, or 4;, Ar is a ring radical selected from phenyl and a 6-membered heteroaryl ring containing up to three N atoms, and their use in pharmaceutical compositions for the treatment of diseases such as , diabetes, obesity, hyperlipidemia and atherosclerotic disease. The invention is also , directed to intermediates useful in preparation of …
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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 April 28, 2004 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2026.
- 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.