Aryl-substituted rhodanine derivatives
CA 2013599 C · Owner: Eli Lilly And Company · Inventors: Panetta, Jill A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
i, ABSTRACT OF THE DISCLOSURE, Provided by the present invention are certain aryl-substituted rhodanine derivatives and pharmaceutically acceptable salts thereof processes for, preparing same, treatment methods and pharmaceutical formulations thereof. The aryl-substituted rhodanine derivatives are of the following generic formula (I): wherein:, R1 and R2 are each independently hydrogen C1-C6 alkyl, C1-C6 alkoxy or -C1-C4 , R3 is hydrogen or C1-C6 alkyl; R4 and R5 are each hydrogen, or when taken together form a bond;, R6 and R7 are each hydrogen or when taken together are =S, or when one of R6 or R7 is hydrogen, the other is -OH or -SCH3;, X is where m is 0, 1 or 2; and, Q is -CH2-, -O- or …
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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 2, 1990 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2012.
- 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.