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Canadian application, no grantCanada

Heterocyclic compounds as ligands of the gabaa receptor

CA 2420967 A1 · Owner: Lee, Kyungae · Inventors: Vincent, Lawrence Albert; Ghosh, Manuka; Currie, Kevin S.

CIPO record

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Abstract From the Canadian patent

Disclosed are heterocyclic compounds of the formula and the pharmaceutically acceptable salts thereof wherein the variables A V, Y, J, E, X, G, Q, W, Z, b, n and m are defined herein. These compounds are highly selective agonists antagonists or inverse agonists for GABAA brain receptors or prodrugs of agonists, antagonists or inverse agonists for GABAA brain receptor.

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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 August 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 6, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 2001
GrantedNo grant recorded
Term endedAugust 6, 2021
Patent numberCA 2420967 A1
Classification (IPC)C07D491/14 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 6, 2001Term endedAug 6, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.