Chemical properties of 4,5-di(ethoxycarbonyl)-1,3-dioxolan-2-yl (DECDO) as a hydroxyl protecting group of the 2′-hydroxyl function in ribonucleosides
作者:Boleslaw Karwowski、Kohji Seio、Mitsuo Sekine
DOI:10.1002/jhet.5570440208
日期:2007.3
3-dioxolan-2-yl (DECDO) in view of its use as a protecting group for the 2′-hydroxyl function of ribonucleosides. The DECDO group is found to be compatible with the DMTr strategy for the currently-used oligonucleotide synthesis. Post-synthetic treatment with ammonia results in the conversion of this protecting group into the 4,5-dicarbamoyl-1,3-dioxolan-2-yl (DCBDO) group which is unexpectedly more stable in
鉴于其用作核糖核苷2'-羟基功能的保护基,我们描述了4,5-二(乙氧羰基)-1,3-二氧戊环-2-基(DECDO)的基本化学性质。发现DECDO基团与当前使用的寡核苷酸合成的DMTr策略相容。用氨进行合成后处理导致该保护基团转化为4,5-二氨基甲酰基-1,3-二氧戊环-2-基(DCBDO),该基团在酸性水溶液中出乎意料地更稳定。