A Convenient One-Pot Synthesis of Acyclonucleosides.
作者:Masaru UBASAWA、Hideaki TAKASHIMA、Kouichi SEKIYA
DOI:10.1248/cpb.43.142
日期:——
Bis(trimethylsilyl)pyrimidine bases were treated directly with 1, 3-dioxolane (or 2-methyl-1, 3-dioxolane), chlorotrimethylsilane and a metal iodide, such as KI or NaI, in acetonitrile at room temperature to afford acylopyrimidine derivatives, including 2-thiopyrimidine derivatives, in good yields. Introduction of an acyclic chain into 2-thiopyrimidine bases, however, necessitated the use of 2 eq of the reagents.
二甲基
硅基
吡啶碱直接与
1,3-二噁烷(或2-甲基-
1,3-二噁烷)、
氯三甲基
硅烷以及
金属
碘化物(如KI或NaI)在室温下的
乙腈中反应,以良好产率合成酰基
吡啶衍生物,包括2-
硫吡啶衍生物。然而,向2-
硫吡啶碱中引入酸性链则需使用2当量的试剂。