New neurokinin antagonists, processes for preparing them and pharmaceutical compositions containing said compounds
CA 2333689 A1 · Owner: Dollinger, Horst · Inventors: Esser, Franz; Jung, Birgit; Luttke, Sven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to novel compounds of general formula (I) or the pharmaceutically acceptable salts thereof wherein X = N-R3 or CH-R4, Y = CH2 , or (CH2)2 Z = O or H2; and R1, R2, R3, R4 and Ar have the meaning cited in the description. The invention also relates to the production and use thereof. The novel compounds are valuable neurokinin (tachykinin) antagonists.
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 May 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2021.
- 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.