Cyclic .beta.-amino acid derivatives as inhibitors of matrix metalloproteases and tnf-.alpha.
CA 2401870 A1 · Owner: Ott, Gregory · Inventors: Ott, Gregory; Duan, Jingwu; Chen, Linhua
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 cyclic .beta.-amino acid derivatives of formula (I) or pharmaceutically acceptable salt forms thereof wherein ring , B is a 5-7 membered cyclic system containing from 0-2 heteroatoms selected from O, N, NRa, and S(O)p, and 0-1 carbonyl groups and the other variables are defined in the present specification, which are useful as metalloprotease and as TNF-.alpha. inhibitors.
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 March 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 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.