This invention relates to the purification of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester by slurrying a mixture containing N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester with organic or aqueous organic solvents.
本发明涉及将含有 N-[N-(3,3-二甲基丁基)-L-&agr;-天冬
氨酰]-
L-苯丙氨酸 1-甲酯的混合物用有机溶剂或含
水有机溶剂浆化,从而提纯 N-[N-(3,3-二甲基丁基)-L-&agr;-天冬
氨酰]-
L-苯丙氨酸 1-甲酯。