Aromatic compounds, pharmaceutical compositions containing them and their use in therapy
CA 2110514 A1 · Owner: Merchant, Kevin J. · Inventors: Merchant, Kevin J.; Macleod, Angus M.; Swain, Christopher J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I) and salts and prodrugs thereof, wherein Q represents optionally substituted phenyl naphthyl, indolyl, benzothiophenyl, benzofuranyl benzyl or indazolyl; Z represents, O, S or NR8; X and Y are H or are together =O; R1 and R2 are H; optionally substituted C1-6alkyl; optionally substituted phenyl(C1-4alkyl); CORc; CO2Rc; CONRcRd; CONRcCOORd; or SO2Rc; R3 is H or C1-6alkyl R4 is H, C1-6alkyl , or optionally substituted phenyl; and R5 represents optionally substituted phenyl; are tachykinin antagonists. They and compositions thereof are useful in therapy.
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 July 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2014.
- 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.