New Concept for the Separation of an Anomeric Mixture of α/β-<scp>d</scp>-Nucleosides through Regioselective Enzymatic Acylation or Hydrolysis Processes
作者:Javier García、Alba Díaz-Rodríguez、Susana Fernández、Yogesh S. Sanghvi、Miguel Ferrero、Vicente Gotor
DOI:10.1021/jo062033o
日期:2006.12.1
An efficient and high yield protocol for the synthesis and separation of 3‘- and/or 5‘-protected α-2‘-deoxynucleosides has been developed through regioselective acylation/deacylation processes catalyzed by enzymes. Pseudomonas cepacia lipase (PSL-C) was found to be highly chemo- and regioselective toward the 3‘-position of the β-2‘-deoxynucleoside derivatives, whereas PSL-C displayed opposite selectivity
通过酶催化的区域选择性酰化/脱酰过程,已经开发出一种高效和高产率的合成和分离3'-和/或5'-保护的α-2'-脱氧核苷的方案。发现假单胞菌脂肪酶(PSL-C)对β-2'-脱氧核苷衍生物的3'-位具有高度的化学和区域选择性,而PSL-C对相应α对5'-位具有相反的选择性-异头物。通过从工业废水中方便地分离胸苷衍生物的α/β混合物,证明了该方案的成功应用。此外,该技术还用于分离2'-脱氧-2'-氟-α/β-阿拉伯糖核苷的异头混合物,这是反义构建体的有用组成部分。