作者:Stefan Milton、Charlotte Ander、Esther Yeheskiely、Roger Strömberg
DOI:10.1002/ejoc.201101264
日期:2012.1
In the interest of pursuing the synthesis of 2′-O-carbamoylmethyl-modified oligonucleotides from building blocks already containing the modification, we have performed studies on the chemical and enzymatic stability of a 2′-O-carbamoylmethyl-modified dinucleotide. The dinucleotide was subjected to ammonolysis and other basic conditions such as treatment with ethylenediamine and sodium hydroxide at
为了从已经包含修饰的构建块合成 2'-O-氨基甲酰基甲基修饰的寡核苷酸,我们对 2'-O-氨基甲酰基甲基修饰的二核苷酸的化学和酶稳定性进行了研究。二核苷酸经过氨解和其他碱性条件,如在不同温度下用乙二胺和氢氧化钠处理。氨基甲酰基甲基的酰胺在寡核苷酸合成的标准脱保护条件下部分水解(55°C 下的浓氨水)。然而,在其他几种条件下,包括甲醇中的饱和 NH3,酰胺保持完整。用来自金刚鹦鹉毒液的磷酸二酯酶 I 和来自牛脾的磷酸二酯酶 II 处理二核苷酸,