The first direct enzymatic method is reported for the synthesis of cis and trans beta-amino acid enantiomers through the lipase-catalyzed enantioselective hydrolysis of alicyclic beta-amino esters in organic media. High enantioselectivities (E usually >100) were observed when the Candida antarctica lipase B catalyzed reactions were performed with H2O (0.5 equivalents) in iPr2O at 65 degrees C. The
据报道,第一种直接酶促方法是在有机介质中通过脂酶催化脂环式β-
氨基酯的对映选择性
水解来合成顺式和反式β-
氨基酸对映体。当在65摄氏度下在iPr2O中以
H2O(0.5当量)进行Candida antarctica
脂肪酶B催化的反应时,观察到高对映选择性(E通常> 100)。容易分开。