申请人:Kaneka Corporation
公开号:EP1029856A1
公开(公告)日:2000-08-23
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.
An intermediate for the production of an HIV protease inhibitor can be produced from L-phenylalanine.
一种生产(2R,3S)-3-氨基-4-苯基丁烷-1,2-环氧化物化合物的工艺,包括用羧酸季铵盐或羧酸金属盐、季铵盐和季铵盐处理(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-环氧化物、得到(2S,3S)-1-乙酰氧基-3-氨基-2-羟基-4-苯基丁烷化合物,在有机碱存在下,进一步用磺酸卤化物处理该化合物,得到(2S,3S)-1-乙酰氧基-3-氨基-2-磺酰氧基-4-苯基丁烷化合物,进一步用无机碱处理上述化合物。
生产 HIV 蛋白酶抑制剂的中间体可由 L-苯丙氨酸制得。