Efficient Synthesis of Acyclic Nucleosides by N-Alkylation of Pyrimidine and Purine-bases Using a New Coupling Agent of Cesium Iodide
作者:Yong Hae Kim、Joong Young Kim、Chun Ho Lee
DOI:10.1246/cl.1988.1045
日期:1988.6.5
Acyclic nucleosides, ((1,3-bis(benzyloxy)-2-propoxy) methyl)-2-thio-pyrimidine, -uracil, -2-thiouracil, and -2-thioadenine, and (2-acetoxyethoxy methyl)-2-thioadenine, -2-thiopyrimidine, -uracil, and -2-thiouracil have been successfully synthesized in good yields by N-alkylations of the bases with the corresponding alkyl-acetate (2) and -chloride (3) using cesium iodide under neutral condition in acetonitrile.
成功合成了无环核苷,包括((1,3-双(苄氧基)-2-丙氧基)甲基)-2-硫代吡啶、-尿嘧啶、-2-硫代尿嘧啶和-2-硫代腺嘌呤,以及(2-乙酰氧乙氧基甲基)-2-硫代腺嘌呤、-2-硫代吡啶、-尿嘧啶和-2-硫代尿嘧啶,合成方法为在中性条件下,使用碘化铯在乙腈中通过与相应的烷基乙酸酯(2)和烷基氯化物(3)进行N-烷基化反应,获得了良好的产量。