US 2026/0285804 A1Published application

Method for producing amide group-containing compound using n-carboxyamino acid anhydride

AssigneeChugai Seiyaku Kabushiki Kaisha

InventorsZengye HOU, Shio KOMIYA

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Abstract

A method for producing an amide group-containing compound, comprising step A of reacting NCA with an amino group of an amino group-containing compound in a first solvent in the presence of a Lewis acid.

Claims17

Dependent claims

1-16. (canceled)

A method for producing an amide group-containing compound, comprising step A of reacting an N-carboxyamino acid anhydride (NCA) with an amino group of an amino group-containing compound in a first solvent in the presence of a Lewis acid.

Dependencies are inferred from the claim text.

Facts

Application: 19/477,909Filed 25 Apr 2024
Priority: JP 2023-07471928 Apr 2023
Published: 24 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

C07C 237/20
Having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton: the carbon skeleton containing…
C07K 1/06
General methods for the preparation of peptides , i.e. processes for the organic chemical preparation of peptides or proteins of any length: using…
C07C 229/34
Having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton: the carbon skeleton containing six-membered aromatic rings
C07C 231/12
Preparation of carboxylic acid amides: by reactions not involving the formation of carboxamide groups

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