Pyridine derivatives with ikb-kinase (ikk-.beta.) inhibiting activity
CA 2422923 A1 · Owner: Lowinger, Timothy B. · Inventors: Koriyama, Yuji; Umeda, Masaomi; Shimada, Mitsuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pyridine compounds of general formula (I) wherein -R1 represents or in which , R11 is hydrogen, C1-6 alkyl halogen, hydroxy, C1-12 alkoxy, nitro, amino C1-, 6 alkylsulfonylamino, C1-6 alkoxycarbonyl C1-6 alkylamino, di (C1-6 , alkyl)amino C1-6 alkanoylamino, phenyl C1-6 alkylamino phenylsulfonylamino, or -O-(CH2)n-R111 ; R2 represents hydrogen or halogen; R3 represents hydrogen -CR31R32R33, or -NR34R35; R4 is hydrogen carbamoyl, CN, carboxyl, etc.; R5 is , amino C1-6 alkylamino, di C1-6 alkylamino, etc. or salt thereof. The compound has an excellent anti-inflammatory activity and other biological activity.
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 September 10, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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.