Antiviral antitumor antimetastatic immune system enhancing nucleosides and nucleotides
CA 1319931 C · Owner: Anadys Pharmaceuticals, Inc. · Inventors: Robins, Roland Kenith; Cottam, Howard Brinkerhoff
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the structure:, wherein R4 R5, R6 and R7 individually are H, OH or C1-C18 O-acyl, and R3 is H, C1-C18 acyl or ;, or R5 and R7 are H or OH, R6 is H and together R3 and R4 are , ;, and X is =O or =S; Y is -OH, -SH -NH2 or halogen; and Z, is H, -NH2, -OH or halogen; wherein halogen is Cl or Br; or a pharmaceutically acceptable salt thereof are useful as antivirals, antitumors, antimetastatics and as immune system enhancers.
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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 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.