(<i>R</i>)-2,4-Dihydroxybutyramide <i>seco</i>-Pseudonucleosides: New Versatile Homochiral Synthons for Synthesis of Modified Oligonucleotides
作者:Natalia N. Dioubankova、Andrey D. Malakhov、Dmitry A. Stetsenko、Vladimir A. Korshun、Michael J. Gait
DOI:10.1021/ol0269289
日期:2002.12.1
[reaction: see text] Two series of seco-pseudonucleoside synthons were synthesized from (R)-(+)-alpha-hydroxy-gamma-butyrolactone and (R)-(-)-pantolactone by aminolysis, side-chain protection, dimethoxytritylation, and phosphitylation or solid-phase attachment. The phosphoramidites and solid supports were used in automated DNA synthesis to prepare oligonucleotides modified with one or more 2,4-dihydroxybutyramide
[反应:见正文]通过(R)-(+)-α-羟基-γ-丁内酯和(R)-(-)-泛酸内酯的氨解,侧链保护,二甲氧基三苯甲基化反应合成了两个系列的假-伪核苷合成子,以及磷酸化或固相连接。将亚磷酰胺和固体支持物用于自动DNA合成中,以制备经一个或多个带有侧链报告基团的2,4-二羟基丁酰胺单元修饰的寡核苷酸。这些新的寡核苷酸修饰试剂可在固相组装过程中将标记引入寡核苷酸链内的任何所需位置。