Piperidine compounds and a pharmaceutical composition
CA 2071480 A1 · Owner: Novo Nordisk A/S · Inventors: Sonnewald, Ursula; Jakobsen, Palle
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel piperidine compounds having formula (I) wherein R3 is, 3,4-methylenedioxyphenyl phenyl, naphtyl, which are optionally, substituted with one or two halogen amino, C1-6-alkyl mono- or, disubstituted amino group C1-6-alkoxy, cyano, mono-, di- or, trihalogenated C1-6-alkyl C2-6-alkenyl, C1-6-alkyl, C3-5-alkylene trifluoromethoxy, or trifluoromethyl groups R1 is, hydrogen, straight or branched C1-8-alkyl C1-8-alkoxy-C1-8-alkyl, C3-8-cycloalkyl C2-6-alkenyl, C4-8-cycloalkylalkyl, C2-6-alkynyl Z is hydrogen, straight or branched C1-8-alkyl Y , is O or S, X is O, S or NR, wherein R is hydrogen or C1-4-alkyl or a salt thereof with a pharmaceutically acceptable acid. The novel compounds are …
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 December 11, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2012.
- 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.