Process for the preparation of derivatives of cystamine having oncostatic activity
CA 1190941 A · Owner: Centre National De La Recherche Scientifique · Inventors: Oiry, Joel; Imbach, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of derivatives of cystamine having oncostatic activity", This invention relates to a process for the preparation of compounds having oncostatic activity corresponding to the formula: wherein one of the radicals A' or B' and A or B represents -NO and the other radical represents a hydrogen atom which comprises effecting nitrosation of a carbamate corresponding to formula (I):, (I), wherein R represents a protective radical for the alcohol function which may be hydrolysed in an acid medium.
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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 July 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2002.
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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.