A process for preparing compounds represented by the following general formula (I) wherein X represents chlorine atom or other and R represents alkoxy group, amino group or other, which comprises the step of allowing a compound represented by the formula: CH
2
═CXF react with a compound represented by the formula: N
2
CHCOR in the presence of a catalyst containing a metal atom such as a transition metal of group 8 together with chiral carboxylic-type or amide-type ligands to preferentially obtain a stereoisomer of the compound of the general formula (I) wherein the stereochemical configuration at the 1-position is S-configuration
1
一种制备以下通式(I)所代表化合物的方法,其中X代表
氯原子或其他,R代表烷氧基,
氨基或其他,包括以下步骤:在存在包含
金属原子的催化剂的条件下,使通式为
CH2═CXF的化合物与通式为N2CHCOR的化合物反应,该催化剂包含第8族过渡
金属以及手性
羧酸型或酰胺型
配体,以优先获得具有S构型的通式(I)化合物的立体异构体,其中1-位的立体
化学配置为S构型1。