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Expired Canadian patentCanada

Fluoroazolyl ketones

CA 1231713 A · Owner: Novartis Pharma Canada Inc./Novartis Pharma Canada Inc. · Inventors: Tobler, Hans; Muller, Urs; Rempfler, Hermann

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Abstract From the Canadian patent

Fluoroazolyl ketones of the formula V (V), wherein Az is 1,2,4-triazolyl, R1 is hydrogen C1-C6-alkyl, which is unsubstituted or substituted by halogen or cyano or, C1-C3-phenylalkyl which is unsubstituted or substituted by halogen, C1-C3-alkyl, C1-C3-alkoxy, C1-C3-halogenoalkyl nitro, cyano, carboxyl or C1-C6-alkoxycarbonyl R2 is, C1-C10 alkyl which is unsubstituted or substituted by C1-C3-alkoxy, phenyl or C1-C3-phenylalkyl it being possible, for the phenyl nuclei in turn to be unsubstituted or substituted by halogen, C1-C3-alkyl, C1-C3-alkoxy, C1-C3-halogenoalkyl nitro, cyano, carboxyl or C1-C6-alkoxycarbonyl. Methods of preparing these products are also disclosed. The fluoroazolyl …

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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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
  • 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 4, 1984
GrantedJanuary 19, 1988
Term endedJanuary 19, 2005
Patent numberCA 1231713 A
Classification (IPC)C07D249/08 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJan 4, 1984Patent grantedJan 19, 1988Term endedJan 19, 2005

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