Anthracycline derivatives, uses thereof as antitumor agent and production thereof
CA 1294957 C · Owner: Takeuchi, Tomio · Inventors: Umezawa, Sumio; Takagi, Yasushi; Tsuchiya, Tsutomu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
As new anthracycline derivatives are now provided 7-O-(2,6-dideoxy-2-fluoro-.alpha.-L-talopyranosyl)daunomycinone and 7-O-(2,6-dideoxy-2-fluoro-.alpha.-L-talopyranosyl)adriamycinone which are useful as antitumor agent and also as antibacterial agent. Briefly, these new compounds may be produced by condensing a 2,6-dideoxy-2-fluoro-.alpha.-Ltalopyranosyl halide with the 7-hydroxyl group of daunomycinone or adriamycinone.
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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
- Granted January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.