Malonic acid derivatives and methods for their synthesis
CA 1304539 C · Owner: Verdini, Antonio Silvio · Inventors: Di Trapani, Romano; Verdini, Antonio Silvio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
18, Abstract, The present invention refers to a new class of malonic acid derivatives of general formula I, wherein R1 and R2 each independently, represent, hydrogen or a carboxyl protecting group and the, residue R corresponds to the side-chain of the amino acids lysine, ornithine, tyrosine, cysteine aspartic, acid and glutamic acid wherein the additional functionalities are suitably protected. The new compounds of the present invention are useful for preparing analogues of biologically active peptides wherein the direction of some amide bonds in which the amino acids lysine, ornithine, tyrosine cysteine, aspartic acid or glutamic acid are involved has been, reversed.
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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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.