Anti-tumor derivatives of 4-desacetyl vlb c-3 carboxhydrazide
CA 1097629 A · Owner: Eli Lilly And Company · Inventors: Gerzon, Koert; Cullinan, George J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
X-4823, Astract of the Disclosure, Novel N2 derivatives of 4-desacetyl VLB (vinblastine) C-3 carboxhydrazides, which are useful as anti-tumor agents, are described herein. These novel compounds are prepared by reacting the corresponding C-3 carboxazide with an alkyl hydrazine or C-3 carboxhydrazide with aldehyde, ketone or acid chloride.
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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 March 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 1998.
- 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.