This invention relates to a "one pot" process for the preparation of isoserine derivatives in high diastereoselective way. The process according to the invention includes the steps of reacting a protected glycidic acid with imines to yield isoserines protected both at the -OH and at the -COOH groups, deprotection of the obtained intermediates to isoserines or isoserine 1-4C- alkyl esters. Pure threo derivatives as the main isomer are obtained.
本发明涉及一种“一锅法”制备高对映选择性的异
丝氨酸衍
生物的方法。根据本发明的方法包括以下步骤:将保护的环氧酸与
亚胺反应,得到在-OH和-COOH基团上均受保护的异
丝氨酸中间体,去保护后得到异
丝氨酸或异
丝氨酸1-4C-烷基酯。获得纯的threo异构体作为主要异构体。