Process for the preparation of derivatives of cyclic peptide nuclei
CA 1183127 A · Owner: Eli Lilly And Company · Inventors: Debono, Manuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Dlsclosure, A process for the preparation of compounds of the formula, wherein 1 is H or OH; and when R1 is H, R2 is H and R3 and R4 are both H or both OH, and, when R1 is OH, R2 is H R3 is OH or Cl-C6, alkyloxy and R4 is OH or R2 is CO-NH2 and, R3 and R4 are both OH; R5 is an N-alkanoyl amino acyl group of the formula , wherein:
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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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
- 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.