申请人:Agilent Technologies, Inc.
公开号:US20150315227A1
公开(公告)日:2015-11-05
Aspects of the present disclosure include compositions that make use of phosphorus and/or nucleobase protecting groups which find use in the synthesis of long polynucleotides. Phosphorus protecting groups are provided that help increase the stepwise coupling yield and/or phosphorous protecting groups that can be removed during the oxidation step. Amidine nucleobase protecting groups are provided that find use in the subject compositions and methods which provides for e.g., increased resistance to depurination during polynucleotide synthesis. In some instances, the methods and compositions disclosed herein utilize a combination of the phosphorus and amidine nucleobase protecting groups in the synthesis of polynucleotides having a sequence of 200 or more monomeric units in length. Also provided are methods for synthesizing a polynucleotide (e.g., a DNA) using one or more compounds disclosed herein.
本公开涉及的方面包括使用磷和/或核碱基保护基的组合物,这些组合物用于合成长的多核苷酸。提供了磷保护基,有助于增加逐步耦合产率和/或可以在氧化步骤中去除的磷保护基。提供了酰胺核碱基保护基,用于本主题的组合物和方法,例如在多核苷酸合成过程中提供了增加的去嘌呤作用的抵抗力。在某些情况下,本公开的方法和组合物利用磷和酰胺核碱基保护基的组合合成具有200个或更多单体单位长度序列的多核苷酸。还提供了使用本文所述的一种或多种化合物合成多核苷酸(例如DNA)的方法。