Certain cycloalka-b-pyrazolo3,4-d-pyridin-3-one derivatives
CA 1306258 C · Owner: Yokoyama, Naokata · Inventors: Yokoyama, Naokata
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4-16191/+/CGC 1237, CERTAIN CYCLOALKA-b-PYRAZOLO3,4-d-PYRIDIN-3-ONE DERIVATIVES Abstract of the Disclosure, Compounts of the formula IA or IB , (IA) (IB), wherein A represents an optionally substituted saturated divalent grouping which together with the two carbon atoms to which it is attached represents a fused 8, 9, 10, 11 or 12 membered carbocyclic ring selected from cycloocteno, cyclononeno cyclodeceno, cyclo-, undeceno and cyclododeceno; each unsubstituted or monodi-, tri-, or tetra-substituted on carbon atoms within A by lower alkyl lower, alkylidene, C3-C7-cycloalkyl, hydroxy acyloxy, oxo, lower alkoxy, aryl or aryl-lower alkoxy; snd when disubstituted on the same carbon atom within …
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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 August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 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.