Intermediates for the production of podophyllotoxin and related compounds and processes for the preparation and use thereof
CA 1321597 C · Owner: Bristol-Myers Company · Inventors: Wong, Henry S. L.; Kaneko, Takushi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed intermediates which can be converted into podophyllotoxin and related compounds which are, known antineoplastic agents. There are also disclosed processes for the preparation of such intermediates and pro-, cesses for the conversion of the intermediates into known intermediates which are readily converted into podophyllotoxin and related compounds.
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 August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
- 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.