Azabicyclic compounds, pharmaceutical compositions containing them and their use in therapy
CA 2060949 A1 · Owner: Swain, Christopher · Inventors: Baker, Raymond; Seward, Eileen M.; Swain, Christopher
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, (I), wherein, Q is the residue of an optionally substituted azabicyclic ring system;, X represents oxa or thia; Y represents H or hydroxy;, R1 and R2 independently represent phenyl or thienyl either of which groups may be optionally substituted by halo or trifluoromethyl;, R3, R4 and R5 independently represent H C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl halo, cyano, nitro, trifluoromethyl, trimethylsilyl -ORa, SCH3, SOCH3, SO2CH3, -NRaRb, -NRaCORb -NRaCO2Rb, -CO2Ra or -CONRaRb;, and, Ra and Rb independently represent H C1-6 alkyl, phenyl or trifluoromethyl, are tachykinin antagonists. They and compositions thereof are therefore useful …
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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 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 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.