1,2-disubstituted cyclic inhibitors of matrix metallorproteases and tnf-alpha
CA 2434044 A1 · Owner: Xue, Chu-Biao · Inventors: Decicco, Carl P.; Xue, Chu-Biao; He, Xiaohua
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present application describes novel 1,2-disubsituted cyclic derivatives of formula I: or pharmaceutically acceptable salt forms thereof wherein ring B is a 3-8 membered non-aromatic ring consisting of: carbon atoms 0-1 carbonyl groups, 0-1 double bonds, and from 0-2 ring heteroatoms selected from O N, NR?2¿, and S(O)¿p? and the other variables are defined in the present specification which are useful as metalloprotease and as TNF-.alpha. inhibitors.
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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 January 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 2024.
- 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.