Chemoenzymatic Synthesis of 3′-<i>O</i>-Acetal-Protected 2′-Deoxynucleosides as Building Blocks for Nucleic Acid Chemistry
作者:Tatiana Rodríguez-Pérez、Susana Fernández、Saúl Martínez-Montero、Tania González-García、Yogesh S. Sanghvi、Vicente Gotor、Miguel Ferrero
DOI:10.1002/ejoc.200901428
日期:2010.3
, and tetrahydrofuranyl ethers of 2'-deoxynucleosides, which are useful building blocks for nucleic acid chemistry. Enzymatic benzoylation provides an efficient alternative for protecting the 5'-hydroxy group of the parent nucleosides in a regioselective manner. Subsequently, tetra-hydropyranylation and tetrahydrofuranylation of the 2'-deoxynucleosides at the 3'-hydroxy group were accomplished with
我们开发了一种简单方便的合成策略,用于制备 2'-脱氧核苷的四氢吡喃基、4-甲氧基-四氢吡喃基和四氢呋喃基醚,它们是核酸化学的有用组成部分。酶促苯甲酰化为以区域选择性方式保护母体核苷的 5'-羟基提供了一种有效的替代方法。随后,以对甲苯磺酸、MgBr 2 或樟脑磺酸为催化剂,对3'-羟基上的2'-脱氧核苷进行四氢吡喃化和四氢呋喃化反应。5'-O-苯甲酰基的脱保护提供了 3'-O-缩醛保护的 2'-脱氧核苷。三步法有望实现受保护核苷的大规模合成。