Synthesis of Ribonucleosidic Dimers with an Amide Linkage from <scp>d</scp>-Xylose
作者:Laurence Arzel、Didier Dubreuil、Fabrice Dénès、Virginie Silvestre、Monique Mathé-Allainmat、Jacques Lebreton
DOI:10.1021/acs.joc.6b01822
日期:2016.11.18
An original and efficient stereocontrolled synthesis of ribonucleosidic homo- and heterodimers has been achieved from inexpensive d-xylose. This successful strategy involved the sequential introduction of nucleobases, using two stereocontrolled N-glycosidation reactions, from a common two-furanoside amide-linked scaffold offering the possibility of obtaining any given base sequence. The pertinence
从便宜的d-木糖已经实现了核糖核苷酸同二聚体和异二聚体的原始和有效的立体控制合成。这种成功的策略涉及使用两个立体控制的N-糖苷化反应从常见的两个呋喃糖苷酰胺连接的支架上顺序引入核苷碱基,从而有可能获得任何给定的碱基序列。该方法的相关性通过分18步制备均二聚体UU- 34和TT- 35进行了说明,从d-木糖中获得的优良总收率超过10%,而异二聚体途径在19步中产生了UT- 39。总产量约为10%。