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Canadian application, no grantCanada

Glutaminase inhibitor

CA 2135597 A1 · Owner: Takeda Chemical Industries, Ltd. · Inventors: Marui, Shogo; Matsutani, Etsuya

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is disclosed a pharmaceutical composition for inhibiting glutaminase which comprises a imidazole derivative or a salt thereof. This compound selectively inhibits the proliferation of tumor cells, and the composition is useful as an anti-cancer agent. There is also disclosed a novel imidazole derivative having glutaminase inhibitory activity.

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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 November 18, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1994
GrantedNo grant recorded
Term endedNovember 18, 2014
Patent numberCA 2135597 A1
Classification (IPC)C07D233/88 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 18, 1994Term endedNov 18, 2014

Sources & verification

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