Cinnoline compounds
CA 2415022 A1 · Owner: Astrazeneca Ab · Inventors: Hennequin, Laurent Francois Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relatest to compounds of the formula (I) wherein either any one of G¿1? G¿2?, G¿3?, G¿4? and G¿5? is nitrogen and the other four are -CHor G¿1?, G¿2?, G¿3?, G¿4? and G¿5? are all -CH-; Z is -O- -NH-, -S-, -CH¿2?- or a direct bond; Z is linked to any one of G¿1? G¿2?, G¿3? and G¿4? which is a free carbon atom; n is an integer from 0 to 5; any of the substitutents R?1¿ may be attached at any free carbon atom of the indole azaindole or indazole group; m is an integer from 0 to 3; R?a¿ represents hydrogen; R?b¿ represents hydrogen or another value as defined herien; R?1¿ represents hydrogen oxo, hydroxy, halogeno, C¿1-4?alkyl, C¿1-4?alkoxy C¿1-4?alkoxyC¿1-4?alkyl, aminoC¿1-4?alkyl …
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 August 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 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.