Improved Phosphoramidite Building Blocks for the Synthesis of the Simplified Nucleic Acid GNA
作者:Mark K. Schlegel、Eric Meggers
DOI:10.1021/jo900365a
日期:2009.6.19
glycol nucleic acids is reported using new phosphoramidite building blocks in which the exocyclic amino groups of adenine and guanine are protected as N-dimethylformamidines, whereas the amino group of cytosine is protected via an acetamide. Besides a more rapid synthesis with higher yields, these phosphoramidites allow the use of a quicker deprotection procedure in the subsequent solid-phase synthesis