Isoquinolinone derivatives as parp inhibitors
CA 2444531 A1 · Owner: Whittle, Alan John · Inventors: Newton, Roger Frank; Eversley, Penny Jane; Smith, Graeme Cameron Murray
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of a compound of the formula (I) and isomers salts, solvates, chemically protected forms and prodrugs thereof, in the preparation of a medicament for inhibiting the activity of PARP wherein A and B together , represent an optionally substituted fused aromatic ring, the dotted line , between the 3 and 4 positions indicates the optional presence of a double bond, at least one of RC1 and RC2 is independently represented by -L-RL and , if one of RC1 and RC2 is not represented by -L-RL then that group is H, where , L is of formula: -(CH2)n1-Qn2-(CH2)n3-wherein n1 n2 and n3 are each selected , from 0, 1 2 and 3, the sum of n1, n2 and n3 is 1 2 or 3 and each Q (if n2 is , greater than 1) …
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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
- Filed April 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2024.
- 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.