以l -阿拉伯糖为原料,通过新型还原环收缩反应和pummer型硫代糖基化合成4′-硫代核糖核苷

Q4 Chemistry
Hideaki Wakamatsu, Kozue Nitta, Nozomi Shoji, Yoshihiro Natori, Yukako Saito, Yuichi Yoshimura
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引用次数: 1

摘要

本文详细介绍了从l -阿拉伯糖开始合成4′-硫代核苷的实际方法。1,4-无氢-2,3- o-异丙基-4-硫比糖醇是合成4 ' -硫代核苷的关键中间体,它是由l -阿拉伯糖经过几个步骤合成的,包括一个新的还原环收缩反应。在关键中间体氧化后,亚砜在壬基化核碱基的存在下进行pummerer型巯基化,得到产率高、β选择性好的4′-硫代核糖核苷。©2017 by John Wiley &儿子,Inc。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Practical Synthesis of 4′-Thioribonucleosides from L-Arabinose via Novel Reductive Ring-Contraction Reaction and Pummerer-Type Thioglycosylation

The detailed practical synthesis of 4′-thionucleosides starting from L-arabinose is described here. 1,4-Anhydro-2,3-O-isopropylidene-4-thioribitol, which is the key intermediate for the synthesis of 4′-thionucleosides, is obtained from L-arabinose in several steps, including a novel reductive ring-contraction reaction. After oxidation of the key intermediate, the sulfoxide is subjected to Pummerer-type thioglycosylation in the presence of persilylated nucleobases to obtain the 4′-thioribonucleosides in good yield and β-selectively. © 2017 by John Wiley & Sons, Inc.

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来源期刊
Current Protocols in Nucleic Acid Chemistry
Current Protocols in Nucleic Acid Chemistry Chemistry-Organic Chemistry
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期刊介绍: Published in association with International Society for Nucleosides, Nucleotides & Nucleic Acids (IS3NA) , Current Protocols in Nucleic Acid Chemistry is equally valuable for biotech, pharmaceutical, and academic labs. It is the resource for designing and running successful research projects in the rapidly growing and changing field of nucleic acid, nucleotide, and nucleoside research.
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