Synthesis of N-N-(3,3-dimethylbutyl)-L-alpha-aspartyl-L-phenylalanine 1-methyl ester using 3,3-dimethylbutyraldehyde precursors
申请人:The NutraSweet Company
公开号:EP2138506A2
公开(公告)日:2009-12-30
N-[N-(3,3-dimethylbutyl)-L- a -aspartyl]-L-phenylalanine 1-methyl ester is produced by hydrolyzing a bisulfite adduct of 3, 3-dimethylbutyraldehyde with a base in a solvent, or by regenerating 3, 3-dimethylbutyraldehyde from a hydrazone, a semicarbazone or an oxime of 3,3-dimethylbutyraldehyde by acidic hydrolysis or oxidative cleavage in a solvent, or by hydrolyzing a trimer of 3,3-dimethylbutyraldehyde with an acid in a solvent. The production methods are efficient and low cost, as compared with conventional N-[N-(3,3-dimethylbutyl)-L-α-aspartyl]-L-phenylalanine 1-methyl ester synthesis.
N-[N-(3,3-二甲基丁基)-L-a-天冬氨酰]-L-苯丙氨酸 1-甲酯是通过在溶剂中用碱水解 3,3-二甲基丁醛的亚硫酸氢盐加合物,或通过从腙中再生 3,3-二甲基丁醛而制得、在溶剂中通过酸性水解或氧化裂解从 3,3-二甲基丁醛的腙、半腙或肟中再生 3,3-二甲基丁醛,或在溶剂中用酸水解 3,3-二甲基丁醛的三聚体。与传统的 N-[N-(3,3-二甲基丁基)-L-α-天冬氨酰]-L-苯丙氨酸 1-甲酯合成法相比,这些生产方法效率高、成本低。