Quinoline carboxylic acid boric acid anhydrides and process for the preparation thereof
CA 1294968 C · Owner: Kereszturi, Geza · Inventors: Sipos, Judit; Hermecz, Istvan; Horvath, Agnes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new quinoline-3-carboxylic acid anhydrides of the general Formula I /I/, /wherein, R stands for cyclopropyl a group of the general, Formula -CH2CR5R6R7 /wherein R5 R6 and R7 stand, for hydrogen or halogen/7 or phenyl optionally substituted by 1 or 2 halogen, R1 and R2 stand for halogen or an aliphatic acyloxy, group containing 2 to 6 carbon atoms optionally substituted by halogen, or an aromatic acyloxy group containing 7 to 11 carbon atoms, R3 stands for chlorine or fluorine and R4 stands for hydrogen or fluorine/, and to the process for the preparation thereof which comprises reacting a compound of the general Formula II /II/, - 2 - 23305-1126, wherein R, R3 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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.