Alpha-hydroxy-beta-aminothiolcarboxylic esters and method and intermediates for their production
申请人:Ajinomoto Co., Inc.
公开号:EP0767168A2
公开(公告)日:1997-04-09
A method for producing α-hydroxy-β-aminocarboxylic acid derivatives, which are intermediates in producing various HIV protease inhibitors, renin inhibitors and carcinostatics, from α-amino acids.
Starting from an N-protected α-amino acid ester, this is converted into a β-ketosulfoxide, which is then reacted with an acid to give an α-keto-hemimercaptal. This is acylated and then processed with a base to obtain an N-protected α-acyloxy-β-amino-thioester, which is then saponified to obtain the intended compound.
一种用α-氨基酸生产α-羟基-β-氨基羧酸衍生物的方法,这种衍生物是生产各种艾滋病毒蛋白酶抑制剂、肾素抑制剂和致癌物质的中间体。
从 N 保护的 α-氨基酸酯开始,将其转化为 β-酮亚砜,然后与酸反应生成 α-酮半巯基。将其酰化,然后用碱处理,得到 N-保护的 α-乙酰氧基-β-氨基硫代酯,然后将其皂化,得到预期的化合物。