A process for enantioselectively preparing 3-azidocarboxylic acid derivatives comprises reacting 3-sulfonatocarboxylic acid derivatives with an alkali metal azide in a solvent selected from the group comprising certain carboxamides; a solvent mixture which comprises such carboxamides; a solvent mixture of water and a solvent miscible homogeneously with water; water with the proviso that the addition of a phase transfer catalyst is not used in the reaction in water; and DMSO. The resulting products are optionally reduced to 3-aminocarboxylic acid derivatives.
一种对映选择性制备3-
叠氮基
羧酸衍
生物的方法包括将3-
磺酸基
羧酸衍
生物与一种碱
金属
叠氮基在选自包括特定羧酰胺的溶剂中反应;一种包含这些羧酰胺的溶剂混合物;一种
水和与
水均匀混合的溶剂的溶剂混合物;带有附加相转移催化剂不在
水中反应的
水;和
二甲基亚砜(
DMSO)。所得产品可选择性还原为3-
氨基
羧酸衍
生物。