Galactose derivatives and preparation thereof
CA 1269366 C · Owner: Ito, Masayoshi · Inventors: Ito, Masayoshi; Sugimoto, Mamoru; Ogawa, Tomoya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is concerned with new galactose derivatives having the formula:, wherein R1 is benzyl or R and R2 are hydrogen or benzyl when R1 is benzyl other-, wise R and R2 are hydrogen, acetyl or benzyl R3 and, R4 are hydrogen or R3 together with R or R4 form isopropylidene, R5 is benzyl or allyl and R6 is hydrogen acetyl or benzyl. These new compounds are useful intermediates for the synthesis of gangliosides.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.