作者:Dario Arosio、Antonio Caligiuri、Paola D'Arrigo、Giuseppe Pedrocchi-Fantoni、Cristina Rossi、Caterina Saraceno、Stefano Servi、Davide Tessaro
DOI:10.1002/adsc.200700050
日期:2007.6.4
racemic-N-protected-β,γ-unsaturated α-amino acid thioesters were found to be substrates for the subtilisin-catalysed hydrolysis to the corresponding acids. The D-enantiomer was continuously racemised in the presence of an organic base. The combined reactions in a biphasic system allowed the deracemisation of the amino acid derivatives based on a dynamic kinetic resolution. Excellent yields and enantioselectivities
发现外消旋-N-保护的β,γ-不饱和α-氨基酸硫代酯的L-形式是枯草杆菌蛋白酶催化水解成相应酸的底物。D-对映体在有机碱的存在下连续消旋。在双相系统中的合并的反应允许基于动态动力学拆分使氨基酸衍生物脱氨。获得了优异的产率和对映选择性。