Labelled taxanes
CA 2479273 A1 · Owner: Pharmacia Italia Spa · Inventors: Fontana, Erminia; Giribone, Danilo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are provided stable labelled taxanes characterized in that the isotopes , are present in the benzoyloxy group at the C-2 position. More particularly one or more of the hydrogen or carbon atoms of the benzoyl residue at the C-2 position of the taxane skeleton is replaced respectively from deuterium or 13C.A process for their preparation and their use as internal standard in analytical methods for determining taxanes useful anticancer drugs, are also , provided.
Read the whole patent
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 March 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2025.
- 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.