The present invention relates to an improved process for synthesis of 4-hydroxy pipecolic acid. The present invention relates to an improved enantioselective process for the synthesis of (2S,4R)-4-hydroxypipecolic acid via Co(III) (salen)-catalyzed two stereocentered Hydrolytic Kinetic Resolution (HKR) of racemic 1,3-azido epoxide with good yields and high optical purity without any protecting groups. 10 31
本发明涉及一种改进的合成
4-羟基
吡哆酸的方法。本发明涉及一种改进的不对称选择性过程,用于通过Co(III) (salen)催化的两个立体中心
水解动力学分辨(HKR)合成(2S,4R)-
4-羟基
吡哆酸,具有良好的产率和高光学纯度,且无需任何保护基团。