Aspartame synthesis

Details Aspartame synthesis Aspartame synthesis

C - Chemistry, Metallurgy

07

K

530/5.06

C07K 5/06 (2006.01) C07K 5/072 (2006.01)

Patent

CA 1244008

ABSTRACT A process for the preparation of the N-L-.alpha.-aspartyl-L- pilenylalanine 1-methyl ester (aspartame) which is characteri zed by adding phosphoric acid and a lower alkyl alcohol to the reaction mixture containing N-formyl .alpha.-L-aspartyl- and .beta.-L-aspartyl-L-phenyl alanine methyl ester and only one of the resultant deformylated isomers,i.e. aspartame phosphate precipitates. The .alpha.-isomer phosphate is collected by filtration and converted to free aspartame by treatment with a base.

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