WO1982003074 NEW PROCESS FOR THE ESTERIFICATION OF AMINO ACIDS

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Publication Number WO/1982/003074

Publication Date 16.09.1982

International Application No. PCT/FR1982/000043

International Filing Date 11.03.1982

IPC

CPC

Applicants

FLORK, Michel [FR]/[FR]
GRINDA, Jean-Robert [FR]/[FR]

Inventors

FLORK, Michel
GRINDA, Jean-Robert

Agents

BURTIN, Jean-François

Priority Data

81/04816

11.03.1981

Publication Language French (fr)

Filing Language French (FR)

Designated States

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Title

(EN) NEW PROCESS FOR THE ESTERIFICATION OF AMINO ACIDS

(FR) NOUVEAU PROCEDE D'ESTERIFICATION D'AMINO-ACIDES

Abstract

(EN) The invention relates to the field of the peptide chemistry. The object is an esterification process which comprises subjecting an amino acid to the action of an alkylsulfate in the presence of an equimolecular amount of an alkylsulfate and isolating the ester in the form of alkylsulfate. The esters obtained are very useful synthesis intermediate products.

(FR) L'invention se rapporte au domaine de la chimie des peptides. Elle a pour objet un procédé d'esterification qui consiste à soumettre un amino-acide à l'action d'un alcanol en présence d'une quantité équimoléculaire d'un sulfate d'alcoyle et à isoler l'ester sous forme d'alcoylsulfate. Les esters obtenus sont des intermédiaires de synthèse très utiles.

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
D	HETEROCYCLIC COMPOUNDS
209	Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
02	condensed with one carbocyclic ring
04	Indoles; Hydrogenated indoles
10	with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
18	Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
20	substituted additionally by nitrogen atoms, e.g. tryptophane

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
D	HETEROCYCLIC COMPOUNDS
233	Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
54	having two double bonds between ring members or between ring members and non-ring members
64	with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
D	HETEROCYCLIC COMPOUNDS
209	Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
02	condensed with one carbocyclic ring
04	Indoles; Hydrogenated indoles
10	with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
18	Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
20	substituted additionally by nitrogen atoms, e.g. tryptophane

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
D	HETEROCYCLIC COMPOUNDS
233	Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
54	having two double bonds between ring members or between ring members and non-ring members
64	with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
227	Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
14	from compounds containing already amino and carboxyl groups or derivatives thereof
18	by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters

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1. WO1982003074 - NEW PROCESS FOR THE ESTERIFICATION OF AMINO ACIDS