An Efficient, General Asymmetric Synthesis of Carbocyclic Nucleosides: Application of an Asymmetric Aldol/Ring-Closing Metathesis Strategy
作者:Michael T. Crimmins、Bryan W. King、William J. Zuercher、Allison L. Choy
DOI:10.1021/jo005535p
日期:2000.12.1
A general and efficient synthesis of carbocyclic and hexenopyranosyl nucleosides has been developed. The strategy combines three key transformations: an asymmetric aldol addition to establish the relative and absolute configuration of the pseudosugar, a ring-closing metathesis to construct the pseudosugar ring, and a Trost-type palladium(0)-mediated substitution to assemble the pseudosugar and the
已经开发了碳环和己吡喃糖基核苷的一般有效合成方法。该策略结合了三个关键的转变:不对称的醛醇加成物以建立假糖的相对和绝对构型,闭环易位以构建假糖环,以及Trost型钯(0)介导的取代以组装假糖和糖。芳香基。Carbovir,abacavir及其2'-甲基衍生物以及己吡喃糖基核苷类似物已通过该序列制备。