Pyrrolecarboxylic acid derivatives
CA 1339784 C · Owner: Shinpuku, Tetsuro · Inventors: Shirasaka, Tadashi; Umezu, Kohei; Shinpuku, Tetsuro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel pyrrolecarboxylic acid derivatives represented by the following formula:, (see fig. I), where R1 is a hydrogen atom an alkyl group of 5 to 25 carbon, atoms or an alkenyl group of 5 to 25 carbon atoms R2 is a, hydrogen atom, a phenyl group or an optionally substituted alkyl group of 1 to 10 carbon atoms, and R3 is a hydrogen atom an, alkyl group of 5 to 25 carbon atoms or an alkenyl group of 5 to 25 carbon atoms, or pharmaceutically acceptable salts thereof are provided. The compounds are highly effective in reducing the level of triglyceride or cholesterol in serum, and useful as an active ingredient of a pharmaceutical composition for treating hyperlipemia and arteriosclerosis.
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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
- Granted March 31, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 2015.
- 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.