Therapeutic nucleosides
CA 1333391 C · Owner: Van Tuttle, Joel · Inventors: Koszalka, George Walter; Daluge, Susan Mary; Krenitsky, Thomas Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
3'-Fluoropyrimidine and purine nucleosides of the general formula (I):, (I), wherein B represents a group of formula (A) OR , (B), in which R1 represents a chlorine or iodine atom R2, represents a hydrogen atom or an amino group and R3 represents a C3-6 cycloalkylamino, C1-6 straight or branched chain alkoxy, C3-7 cycloalkoxy or a 5- or 6membered heterocyclic ring bonded to the purine residue via a nitrogen atom in the said ring have, been found to have potent antiviral activity particularly against Human Immunodeficiency Virus (HIV).
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 December 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 6, 2011.
- 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.