Separation method of .alpha.-l-aspartyl-l-phenylalanine methyl e

Details Separation method of .alpha.-l-aspartyl-l-phenylalanine methyl e Separation method of .alpha.-l-aspartyl-l-phenylalanine methyl e

1991-04-23

1994-02-01

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

562450, C07C22734, C07C22738

Patent

active

052833577

ABSTRACT:
A method for separating .alpha.-L-aspartyl-L-phenylalanine methyl ester (.alpha.-APM) from a solution containing .alpha.-APM and impurities associated with the production thereof which comprises adding a mineral acid or an organic sulfonic acid to the solution in an organic carboxylic acid or in a solvent containing an organic carboxylic acid, and isolating the pure salt of .alpha.-APM which precipitates therefrom.

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