Process for preparing n-glycolylneuraminic acid derivatives
CA 1262130 C · Owner: Mect Corporation · Inventors: Shitori, Yoshiyasu; Yoshimura, Shoji; Shibayama, Shohei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, This invention provides a novel process for preparing a compound represented by the formula, (2) In accordance with this invention, the compound is prepared by reacting a compound represented by the formula (1), with glycolic acid in the presence of dicyclohexylcarbodiimide. The compound (2) is a useful precursor for the preparation of N-glycolylneuraminic acid:,
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 October 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 3, 2006.
- 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.