An amino group of an &agr;-amino acid ester is protected as an imine, and it is then reacted with a halomethyllithium to obtain an N-protected-&agr;-aminohalomethylketone. Further, this N-protected-&agr;-aminohalomethylketone is treated with an acid to obtain an &agr;-aminohalomethylketone. This process is suited for industrial production, and can produce an &agr;-aminohalomethylketone and its related compounds economically and efficiently.
一个
α-氨基酸酯的
氨基团被保护为
亚胺,然后与卤代
甲基锂反应,得到一个N-保护的α-
氨基卤代甲基酮。此外,这个N-保护的α-
氨基卤代甲基酮经过酸处理,得到一个α-
氨基卤代甲基酮。这个过程适用于工业生产,并且可以经济高效地生产α-
氨基卤代甲基酮及其相关化合物。