Modular quadruplex–duplex hybrids as biomolecular scaffolds for asymmetric Michael addition reactions
作者:Ji Hye Yum、Hiroshi Sugiyama、Soyoung Park
DOI:10.1039/d0ob01362e
日期:——
conformation, thermal stability, and metal-binding ability of modified QD hybrid DNA were characterized using spectroscopy. The QD hybrid-based DNA catalysts were successfully applied to asymmetric Michael additionreactions (86% conversion and 76% ee). This study describes a new type of DNA hybrid catalyst produced by the construction of a cooperative active site with a Lewis acid and a H-bond donor.
由于 DNA 具有多种三级结构、化学稳定性和易于处理等优点,基于 DNA 支架的不对称合成已被积极利用。由于基于双链 DNA 的杂化催化剂已经证明了这种卓越的能力,因此人们努力研究新的生物分子支架。在此,我们报告了含有联吡啶配体和氢供体部分的模块化四链体-双链体 (QD) 杂化 DNA 催化剂。使用光谱学表征了修饰的 QD 杂合 DNA 的构象、热稳定性和金属结合能力。基于 QD 杂化的 DNA 催化剂成功地应用于不对称迈克尔加成反应(86% 转化率和 76% ee)。