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    • 8. 发明申请
    • Synthesis and recovery of aspartame involving enzymatic deformylation step
    • 涉及酶的去甲酰化步骤的阿斯巴甜的合成和回收
    • US20020025549A1
    • 2002-02-28
    • US09886476
    • 2001-06-22
    • Peter J.L.M. QuaedfliegTheodorus SonkeAdolf F.V. Wagner
    • C12P021/06
    • C12P21/02C07K5/0613C12N9/80C12P41/007
    • The invention relates to the synthesis of aspartame involving enzymatic deformylation of an N-formyl-null-L-aspartyl-L-phenylalanine compound by treatment with an enzyme having formylmethionyl peptide deformylase activity and having as a co-factor group 5 to 11 bivalent metal ions. The invention also relates to selective preparation and recovery of aspartame from a mixture of N-formyl-null- and null-L-aspartyl-L-phenylalanine compounds by treatment with such enzyme. And finally, the invention relates to one-pot enzymatic synthesis of aspartame from N-formyl-L-aspartic acid and L- or D,L-phenylalanine methyl ester involving an enzymatic deformylation reaction simultaneously with an enzymatic coupling reaction, as well as to one-pot di- or oligopeptide synthesis by simultaneous enzymatic coupling and deformylation reactions in general.
    • 本发明涉及通过用具有甲酰基甲硫氨酰基肽去甲酰化酶活性的酶处理并具有5至11个二价金属的辅因子来合成涉及N-甲酰基-α-L-天冬氨酰基-L-苯丙氨酸化合物的酶促变性的天冬甜素 离子。 本发明还涉及通过用这种酶处理从N-甲酰基-α-和β-L-天冬氨酰基-L-苯丙氨酸化合物的混合物中选择性制备和回收阿斯巴甜。 最后,本发明涉及一种来自N-甲酰基-L-天冬氨酸和L-或D,L-苯丙氨酸甲酯的一步法酶促合成涉及酶促变性反应同时进行酶偶联反应,以及 通常通过同时酶偶联和变形反应来进行一锅二糖或寡肽的合成。