Novel Chemoenzymatic Protocol for the Synthesis of 3‘-<i>O</i>-Dimethoxytrityl-2‘-deoxynucleoside Derivatives as Building Blocks for Oligonucleotide Synthesis
作者:Alba Díaz-Rodríguez、Susana Fernández、Yogesh S. Sanghvi、Miguel Ferrero、Vicente Gotor
DOI:10.1021/op050253i
日期:2006.5.1
An easy, efficient, and scalable chemoenzymatic strategy for the synthesis of 3‘-O-dimethoxytrityl-2‘-deoxynucleosides has been developed. A key feature of this approach is the regioselective synthesis of 5‘-O-levulinyl-2‘-deoxynucleosides through enzymatic acylation in the presence of Candida antarctica lipase B. In addition, it was observed that the deblocking of levulinyl group from the 5‘-position
已经开发了用于合成3' - O-二甲氧基三苯甲基-2'-脱氧核苷的简单,有效且可扩展的化学酶策略。该方法的关键特征是在南极假丝酵母脂肪酶B存在下,通过酶促酰化反应进行5'- O-乙酰丙氨酰-2'-脱氧核苷的区域选择性合成。此外,还观察到乙酰丙氨酰基从5'解封位置与常规的碱保护基完全相容。为了证明该方法的可扩展性,以25 g规模合成了3'- O-二甲氧基三苯甲基胸苷(4a)。这些单体(4 a - d)是合成寡核苷酸的有用组成部分。