3′-C-Branched Thymidine 5′-Triphosphates: Synthesis, Application, and Coupling with Near-Infrared Oxazine Fluorescent Dye
作者:Thomas Schoetzau、Ulrich Koert、Joachim W. Engels
DOI:10.1055/s-2000-6388
日期:——
The synthesis of the novel class of 3′-C-modified thymidine nucleotides is described. The aldehyde 1 was converted into the derivatives 5, 7, and 10 that differ in the length of the carbon chain. One-pot phosphorylation gave the corresponding triphosphates 11, 12, 13. The 3′-C-(2-azidoethyl)-3′-deoxythymidine 5′-triphosphate 13 was reduced by triphenylphosphine to the amino nucleotide 14. All amino nucleotides have been dye-labelled at the aliphatic amino group with the oxazine dye JA242. All triphosphates were tested as terminators in DNA-sequencing reactions.
描述了新型 3'-C-修饰胸苷核苷酸的合成。醛1被转化为碳链长度不同的衍生物5、7和10。一锅磷酸化得到相应的三磷酸酯 11,12,13。3'-C-(2-叠氮乙基)-3'-脱氧胸苷 5'-三磷酸 13 被三苯基膦还原为氨基核苷酸 14。所有氨基核苷酸均已被还原。用恶嗪染料 JA242 在脂肪族氨基上进行染料标记。所有三磷酸盐都在 DNA 测序反应中作为终止子进行了测试。