作者:Davide Tessaro、Lorenzo Cerioli、Stefano Servi、Fiorenza Viani、Paola D'Arrigo
DOI:10.1002/adsc.201100389
日期:2011.9
non‐natural N‐Boc‐amino acid thioesters undergo enzyme‐catalyzed ammoniolysis and aminolysis with concomitant base‐catalyzed racemization of the non‐transformed D‐enantiomer with the formation of the corresponding L‐amides in good yields and excellent enantiomeric purity all above 98% ee. This is the first example of a dynamic kinetic resolution of amino acid derivatives with amides formation.
外消旋的天然和非天然N -Boc-氨基酸硫酯经过酶催化的氨解和氨解反应,伴随着未转化的D-对映体的碱催化外消旋作用,形成了相应的L-酰胺,收率高,对映体纯度高高于98%ee。这是具有酰胺形成的氨基酸衍生物的动态动力学拆分的第一个例子。