Kynurenic acid derivatives useful in the treatment of neurodegenerative disorders
CA 1330660 C · Owner: Leeson, Paul · Inventors: Leeson, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
KYNURENIC ACID DERIVATIVES USEFUL IN THE TREATMENT OF NEURODEGENERATIVE DISORDERS, 4-Oxo-1,4-dihydroquinoline compounds having a 2-acidic group or a group convertible thereto in vivo, and their pharmaceutically acceptable salts are potent specific antagonists of N-methyl-Daspartate (NMDA) receptors and are therefore useful in the treatment of neurodegenerative disorders. 4-Oxo-1,4-dihydroquinoline compounds having a 2acidic group or a group convertible thereto in vivo other than carboxy or C1-6 alkoxycarbonyl are novel, compounds, as also are compounds of formula II (II), wherein R2 represents carboxy or a group convertible thereto in vivo, R6 is hydrogen and R5 and R7 represent C1-6 alkyl …
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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 12, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 12, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.