2-alkoxyphenyl substituted imidazotriazinones
CA 2438113 A1 · Owner: Karl, Wolfgang · Inventors: Karl, Wolfgang; Bischoff, Erwin; Radtke, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to 2-phenyl substituted imidazotriazinones comprising short, non-branched alkyl radicals in position 9 which are produced from the , corresponding 2-phenyl imidazotriazinones by means of chlorosulfonation and subsequently reacted with the amines. The components inhibit cGMP-metabolised phosphodiesterases and are suitable for use as active ingredients in medicaments for treating cardiovascular and cerebrovascular diseases and/or diseases of the urogenital system, particularly for treating erectile dysfunctions.
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 February 4, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 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
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.