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Expired Canadian patentCanada

3-phenyl-4-cyanopyrrole derivatives and microbicidal compositions containing them

CA 1286293 C · Owner: Novartis Pharma Canada Inc./Novartis Pharma Canada Inc. · Inventors: Nyfeler, Robert; Ehrenfreund, Josef

CIPO record

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Abstract From the Canadian patent

The invention relates to novel 3-phenyl-4-cyanopyrrole derivatives of the general formula, wherein, X has the following meanings: A: hydrogen or CO-R1, wherein R1 is C1-C6alkyl which is unsubstituted or substituted by halogen or C1-C3alkoxy; or is C3-C6alkenyl, C3-C6alkynyl, or C1-C6alkoxy which is unsubstituted or substituted by halogen or C1-C3alkoxy or is C3-C6alkenyloxy C3-C6cycloalkyl or tetrahydrofur-2-yl; B: S-R2, wherein R2 is C1-C3haloalkyl; C: CH(Y)R3, wherein R3 is hydrogen or C1-C8haloalkyl and Y is hydroxy, halogen or OC(O)R4, wherein R4 is C1-C8alkyl C1-C8-, haloalkyl, C2-C6alkenyl, tetrahydrofur-2-yl tetrahydropyran-, 2-yl or C1-C6alkoxycarbonyl; D: CH2-Z, wherein Z is one of …

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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 July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 19, 1986
GrantedJuly 16, 1991
Term endedJuly 16, 2008
Patent numberCA 1286293 C
Classification (IPC)C07D405/04 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJune 19, 1986Patent grantedJuly 16, 1991Term endedJuly 16, 2008

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