Chemo-enzymatic synthesis of isotopically labelled L-Valine, L-Isoleucine and allo-isoleucine
作者:Nicholas M. Kelly、R. Gordon Reid、Christine L. Wellis、Peter L. Winton
DOI:10.1016/0040-4039(96)00053-6
日期:1996.2
catalysed reactions (Candida cylindracea lipase to hydroluse the ester and leucine dehydrogenase to catalyse the reductive amination of the ketone). This strategy may be simply adapted for the selective labelling of each site of the L-amino acid.
(3的合成[R )- [4,4,4- d 3 ] -L-缬氨酸,[ 15 N] -L -异亮氨酸和[ 15 N] -异基因从纯手2烷基化的羧酸-异亮氨酸中描述。该方法涉及羧酸的一碳同系化,得到相应的β-取代的α-酮酸酯,该酯可通过一锅法直接转化为α-氨基酸,涉及两个酶催化的反应(念珠菌脂肪酶转化为水解酶)。酯和亮氨酸脱氢酶催化酮的还原胺化反应)。该策略可以简单地适用于L-氨基酸的每个位点的选择性标记。