A process for producing (2R,3S)-3-amino-4-phenylbutane-1,2-epoxide compounds which comprises treating a (2S,3S)-3-amino-1-halo-2-hydroxy-4-phenylbutane compound or a (2S,3S)-3-amino-4-phenylbutane-1,2-epoxide with a carboxylic acid quaternary ammonium salt or a carboxylic acid metal salt a quaternary ammonium salt and a quaternary ammonium salt, to give a (2S,3S)-1-acyloxy-3-amino-2-hydroxy-4-phenylbutane compound, further treating the same with a sulfonic acid halide in the presence of an organic base to give a (2S,3S)-1-acyloxy-3-amino-2-sulfonyloxy-4-phenylbutane compound, furthermore treating said compound with an inorganic base.
生产(2R,3S)-3-
氨基-4-苯基
丁烷-1,2-环氧化合物的方法包括处理(2S,3S)-3-
氨基-1-卤代-2-羟基-4-苯基
丁烷化合物或(2S,3S)-3-
氨基-4-苯基
丁烷-1,2-环氧化合物与
羧酸季
铵盐或
羧酸金属盐、季
铵盐和季
铵盐,以得到(2S,3S)-1-酰氧基-3-
氨基-2-羟基-4-苯基
丁烷化合物,进一步将其与有机碱存在下处理,以得到(2S,3S)-1-酰氧基-3-
氨基-2-磺酰氧基-4-苯基
丁烷化合物,进一步将该化合物与
无机碱处理。