Macrolides with antitumor activity
CA 2299269 A1 · Owner: Instituto Biomar S.A. · Inventors: Fernandez-Puentes, Jose Luis; Fernandez-Chimeno, Rosa Isabel; Romero, Francisco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compound referred to herein as IB-96212 having structure (I) can be , obtained by cultivating strain the Micromonospora sp. ES25-008 available , under the accession number CECT-3333 and can be hydrolysed to give IB-96212B having structure (II). The sugar substituent which is L-rhodinose can itself be derivatised or the sugar can be replaced in either case giving further , derivatives of IB-96212 having a group other than L-rhodinose at the position of the sugar.
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 August 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2020.
- 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.