Process for the preparation of vincamine and other indole alkaloids
CA 1055031 A · Owner: Buskine S.A. · Inventors: Taccone, Ida
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the preparation of vincamine and similar indole alkaloids, capable of being easily con verted to vincamine, by oxydating a starting alkaloid selected between tabersonine and vincadifformine with oxygen, the reaction mixture being added with an essential amount of an inorganic or organic salt of a metal selected among Cu, Fe and Co.
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
- Granted May 22, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 1996.
- 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.