PROCESS FOR PREPARING OF METHYL ESTER OF ALPHA-ASPARTYL PHENYL ALANINE

PCT No. PCT/FR82/00181 Sec. 371 Date Jul. 5, 1983 Sec. 102(e) Date Jul. 5, 1983 PCT Filed Nov. 5, 1982 PCT Pub. No. WO83/01619 PCT Pub. Date May 11, 1983.The present invention relates to a process for the preparation of alpha -aspartyl phenylalanine methyl ester by reacting phenylalanine methyl este...

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Bibliographic Details
Main Author GOURBAULT, MAURICE JEAN
Format Patent
LanguageEnglish
French
Published 21.08.1985
Edition4
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
FOODS OR FOODSTUFFS
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J
HUMAN NECESSITIES
METALLURGY
ORGANIC CHEMISTRY
PEPTIDES
PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT
THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Summary:PCT No. PCT/FR82/00181 Sec. 371 Date Jul. 5, 1983 Sec. 102(e) Date Jul. 5, 1983 PCT Filed Nov. 5, 1982 PCT Pub. No. WO83/01619 PCT Pub. Date May 11, 1983.The present invention relates to a process for the preparation of alpha -aspartyl phenylalanine methyl ester by reacting phenylalanine methyl ester with the anhydride of N-formyl L-aspartic acid, process wherein the product from said reaction is treated in at least one ion-exchanging resin column and the beta -isomer contained in the resulting mixture is isomerized by treatment with acetic anhydride followed by an acid hydrolysis to convert said beta -isomer into alpha -isomer and ensure the deformylation of said product.
Bibliography:Application Number: EP19820903246