(e)-5-(2-bromovinyl)-uridine, its derivatives and a process for the preparation thereof
CA 1207760 A · Owner: Egyt Gyogyszervegyeszeti Gyar · Inventors: Sagi, Janos; Fritzsche, Ildiko Nee Lukacs; Nagy, Janos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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A b s t r a c t o f t h e d i s c l o s u r e The invention relates to (E)-5-(2-bromovinyl)-uridine and its derivatives of general formula (VI), (VI), wherein, R1 stands for a hydrogen atom C1-8 alkanoyl, group, benzoyl group or a benzoyl group substituted in para position either with a C1-4 alkyl group or a halogen atom, and a process for preparing them by brominating 2',3',5'-tri-0-acyl-5-ethyl-uridine of general formula (IV), (IV), - 2 -, wherein R is identical with R1, except where R1 stands for a hydrogen atom, dehydrohalogenating the resulting dibromo compound of general formula (V) (V), and optionally deacylating it. The resulting compounds of general formuLa (VI) are exhibiting …
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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 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 2003.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.