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Expired Canadian patentCanada

2,6-pyridinedimethanol 2-¬a-(p-chlorophenoxy)- isobutyric acid

CA 1114383 A · Owner: Especialidades Latinas Medicamentos Universales S.A. (Elmu S.A.) · Inventors: Montoro, Fernando; Vilar, Angel; Calatayud, Jose

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Abstract From the Canadian patent

2,6-PYRIDINEDIMETHANOL 2-.alpha.-(p-CHLOROPHENOXY)- ISOBUTYRIC ACID, ABSTRACT OF THE DISCLOSURE The invention relates to the preparation of 2,6pyridinedimethanol 2-.alpha.-(p-chlorophenoxy) isobutyric acid ester, of structural formula:, and of its pharmaceutically acceptable salts. According to the invention, .alpha.-(p-chlorophenoxy) isobutyric acid and 2,6-pyridinedimethanol are reacted in equimolar proportions, in the presence of an acid catalyst preferably, a sulfonic acid or sulphuric acid in a medium nonmiscible, with water, preferably xylene or toluene. The product, is particularly applicable to the treatment of disorders of the lipidlc metabolism.

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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

  • Granted December 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 2, 1979
GrantedDecember 15, 1981
Term endedDecember 15, 1998
Patent numberCA 1114383 A
Classification (IPC)C07D213/55 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJan 2, 1979Patent grantedDec 15, 1981Term endedDec 15, 1998

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