作者:Hyo-Joong Kim、Nicole A. Leal、Shuichi Hoshika、Steven A. Benner
DOI:10.1021/jo402665d
日期:2014.4.4
Rearranging hydrogen bonding groups adds nucleobases to an artificially expanded genetic information system (AEGIS), pairing orthogonally to standard nucleotides. We report here a large-scale synthesis of the AEGIS nucleotide carrying 2-amino-3-nitropyridin-6-one (trivially Z) via Heck coupling and a hydroboration/oxidation sequence. RiboZ is more stable against epimerization than its 2′-deoxyribo
重新排列氢键基团将核碱基添加到人工扩展的遗传信息系统 (AEGIS),与标准核苷酸正交配对。我们在这里报告了通过 Heck 耦合和硼氢化/氧化序列大规模合成携带 2-amino-3-nitropyridin-6-one(普通 Z)的 AEGIS 核苷酸。RiboZ 对差向异构化比其 2'-脱氧核糖类似物更稳定。此外,T7 RNA 聚合酶在其 Watson-Crick 补体、咪唑并 [1,2-a]-1,3,5-triazin-4(8 H )one(通常为 P)的对面结合 ZTP ,为使用这种“第二-代”AEGIS Z:P 对添加由 mRNA 编码的氨基酸。