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发明授权
US3678026A Method of purifying lower alkyl esters of {60 -l-aspartyl-l-phenylalanine 失效
纯化{60-氨基-L-苯丙氨酸的低级烷基酯的方法

Method of purifying lower alkyl esters of {60 -l-aspartyl-l-phenylalanine
摘要：
The lower alkyl esters of Alpha -L-aspartyl-L-phenylalanine, known artificial sweeteners, are separated from the bitter tasting Beta -isomers and other impurities by the low solubility of their adducts with certain aromatic carboxylic acids and phenols in water.
摘要（中）：

已知的人造甜味剂α-L-天冬氨酰基-L-苯丙氨酸的低级烷基酯通过与​​某些芳族羧酸和酚在水中的加合物的低溶解度与苦味β-异构体和其它杂质分离。

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