Synthesis of an elongated linear oligo(phenylene ethynylene)-based building block for application in DNA-programmed assembly
作者:Peter Blakskjær、Kurt V. Gothelf
DOI:10.1039/b605844b
日期:——
The synthesis of an elongated linear oligonucleotide-functionalised module (ELOM) is described. The ELOM structure is based on an oligo(phenylene ethynylene) backbone substituted with two decyloxy groups. The two termini constitute two salicylaldehyde moieties acting as chemical cross-linkers. Before incorporation into an oligonucleotide sequence the organic part of the module, the elongated linear module (ELM), is functionalised with a dimethoxytrityl group and a phosphoramidite group. This enables incorporation into the middle of 30-mer oligonucleotide sequences by automated DNA synthesis. The obtained ELOMs were characterised by polyacrylamide gel electrophoresis and MALDI-TOF mass spectrometry. In analogy with previously reported LOM and TOM structures the coupling reactions of the ELOM modules were tested.
描述了一种延长的线性寡核苷酸功能化模块(ELOM)的合成。ELOM结构基于一个取代有两个癸氧基团的寡(苯乙炔)骨架。其两个末端由作为化学交联剂的两个水杨醛部分构成。在被纳入到寡核苷酸序列之前,该模块的有机部分,即延长的线性模块(ELM),被功能化为含有二甲氧基三苯甲基基团和磷酰胺基团的形式。这使得它能够通过自动化的DNA合成过程被插入到30碱基长的寡核苷酸序列的中间。获得的ELOMs通过聚丙烯酰胺凝胶电泳和MALDI-TOF质谱分析进行了表征。参照先前报道的LOM和TOM结构,测试了ELOM模块的偶联反应。