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Expired Canadian patentCanada

Amino acid derivatives

CA 1298034 C · Owner: Raddatz, Peter · Inventors: Minck, Klaus O.; Raddatz, Peter; Schmitges, Claus J.

CIPO record

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Abstract From the Canadian patent

26474-96, New amino acid derivatives of the Formula I X-Z-NR2-CHR3-CHR4-(CHR5)n-CO-B-D (I), wherein X is for example, hydrogen, Z is 0 to 4 amino acid residues bonded in peptide-like manner B is absent or is Abu, Ala, Cal, Gly, Ile Leu, Met, Nle or Val, D is, , Y is NH, O or S R2, R5 and R6 are, each H or C1-C8-alkyl R3 is, for example, C1-C8-alkyl, Ar or Aralkyl, R4 is OH or NH2, R7 is H, C1-C8-alkyl cycloalkyl or Ar-, alkyl, and n is 1 or 2. The new compounds and their salts inhibit the activity of human plasma renin as can be used for the prophylaxls and for the treatment of disorders of the heart circulatlon and vessels, especlally of hypertension cardiac, insufficiency and …

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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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
  • 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 13, 1986
GrantedMarch 24, 1992
Term endedMarch 24, 2009
Patent numberCA 1298034 C
Classification (IPC)C07K5/04 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 13, 1986Patent grantedMarch 24, 1992Term endedMarch 24, 2009

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