作者:Mariola Koszytkowska-Stawińska、Ewa Mironiuk-Puchalska、Wojciech Sas
DOI:10.1016/j.tetlet.2011.02.018
日期:2011.4
Pseudouridine (ψ-uridine, Ψ) aza′-analogues with a 5,5-bis(hydroxymethyl)-1-pyrrolin-2-yl 1-oxide as the glycone mimic were obtained by the addition of (2,4-dimethoxypyrimidin-5-yl)magnesium bromide to 1-aza-7,14-dioxadispiro[4.2.5.2]pentadec-1-ene 1-oxide (3), followed by oxidation and removal of the protecting groups. The analogous synthesis from (2,4-dimethoxypyrimidin-5-yl)lithium and 3 was less
通过添加(2,4-二甲氧基嘧啶-将5-基)溴化镁制得1-氮杂-7,14-二恶二螺[4.2.5.2]十五烯-1-烯-1-氧化物(3),然后氧化并除去保护基。由(2,4-二甲氧基嘧啶-5-基)锂和3的类似合成效率较低;在反应顺序的第一步中,3的竞争二聚作用主要是将有机锂试剂添加到3中。