作者:Katrin Groebke、Christian Leumann
DOI:10.1002/hlca.19900730309
日期:1990.5.2
In three steps, 2-deoxy-D-ribose has been converted into a phosphoramidite building block bearing a (t-Bu)Me2Si protecting group at the OH function of the anomeric centre of the furanose ring. This building block was subsequently incorporated into DNA oligomers of various base sequences using the standard phosphoramidite protocol for automated DNA synthesis. The resulting silyl-oligomers have been
在三个步骤中,将2-脱氧-D-核糖转变为在呋喃糖环的异头中心的OH功能上带有(t -Bu)Me 2 Si保护基的亚磷酰胺结构单元。随后使用标准的亚磷酰胺方案将这种结构单元掺入各种碱基序列的DNA寡聚体中,以进行自动DNA合成。所得的甲硅烷基-低聚物已通过HPLC纯化,并选择性地被甲硅烷基化为相应的游离紫嘌呤DNA序列。以这种方式制备的六聚体d(AAAAXA)(X代表嘌呤位点)的特征在于1 H-和31P-NMR光谱。通过聚丙烯酰胺凝胶电泳分析了用碱碱处理后形成的其他序列及其片段。