Phosphine-Free Stille-Migita Chemistry for the Mild and Orthogonal Modification of DNA and RNA
作者:André Krause、Alexander Hertl、Fabian Muttach、Andres Jäschke
DOI:10.1002/chem.201404843
日期:2014.12.8
An optimized catalyst system of [Pd2(dba)3] and AsPh3 efficiently catalyzes the Stille reaction between a diverse set of functionalized stannanes and halogenated mono‐, di‐ and oligonucleotides. The methodology allows for the facile conjugation of short and long nucleic acid molecules with moieties that are not compatible with conventional chemical or enzymatic synthesis, among them acid‐, base‐, or
优化的[Pd 2(dba)3 ]和AsPh 3催化剂体系可有效催化各种功能化的锡烷与卤化的单,二和寡核苷酸之间的Stille反应。该方法允许将短和长核酸分子与不兼容常规化学或酶促合成的部分轻松偶联,其中酸,碱或氟化物不敏感的保护基,发荧光和难于合成的具有挑战性的部分接近定量的收益率。值得注意的是,甚至叠氮化物也可以直接引入寡核苷酸和(脱氧)核苷三磷酸中,从而直接进入“可点击的”核酸。