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Canadian application, no grantCanada

Cyclopropyl hexane containing oxazolidinone antibiotics and derivatives thereof

CA 2463794 A1 · Owner: Kyorin Pharmaceuticals Co. Ltd. · Inventors: Fukuda, Yasumichi

CIPO record

Overview

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

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Abstract From the Canadian patent

This invention relates to new oxazolidinones having a cyclopropyl moiety which are effective against aerobic and anerobic pathogens such as multiresistant staphylococci, streptococci and enterococci Bacteroides spp. Clostridia spp. species as well as acid-fast organisms such as Mycobacterium tuberculosis and other mycobacterial species. The compounds are represented by structural formula (I): its enantiomer diastereomer, or pharmaceutically , acceptable salt or ester thereof.

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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 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
  • 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 27, 2002
GrantedNo grant recorded
Term endedNovember 27, 2022
Patent numberCA 2463794 A1
Classification (IPC)C07D263/22 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 27, 2002Term endedNov 27, 2022

Sources & verification

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