A process for producing a 3-amino-1-nitro-4-phenyl-2-butanol derivative represented by general formula (1) and a 3-amino-2-hydroxy-4-phenyl-butyric acid derivative derived therefrom. In said formula, R¹ and R² represent each independently hydrogen or an amino-protecting group. The process can industrially provide an optically active amino alcohol derivative as an intermediate for synthesizing medicines such as an immunopotentiating carcinostatic bestatin in a high yield safely, readily and highly selectively.
一种生产通式(1)代表的 3-
氨基-1-硝基-
4-苯基-2-丁醇衍
生物和由此衍生的 3-
氨基-2-羟基-4-苯基-
丁酸衍
生物的工艺。在所述通式中,R¹和 R² 各自独立地代表氢或
氨基保护基团。该工艺可在工业上提供一种具有光学活性的
氨基醇衍
生物,作为合成药物(如免疫增强致癌物贝司他丁)的中间体,并可安全、容易和高选择性地获得高产率。