Hideaki Wakamatsu, Kozue Nitta, Nozomi Shoji, Yoshihiro Natori, Yukako Saito, Yuichi Yoshimura
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{"title":"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","authors":"Hideaki Wakamatsu, Kozue Nitta, Nozomi Shoji, Yoshihiro Natori, Yukako Saito, Yuichi Yoshimura","doi":"10.1002/cpnc.45","DOIUrl":null,"url":null,"abstract":"<p>The detailed practical synthesis of 4′-thionucleosides starting from <span>L</span>-arabinose is described here. 1,4-Anhydro-2,3-<i>O</i>-isopropylidene-4-thioribitol, which is the key intermediate for the synthesis of 4′-thionucleosides, is obtained from <span>L</span>-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.</p>","PeriodicalId":10966,"journal":{"name":"Current Protocols in Nucleic Acid Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpnc.45","citationCount":"1","resultStr":"{\"title\":\"Practical Synthesis of 4′-Thioribonucleosides from L-Arabinose via Novel Reductive Ring-Contraction Reaction and Pummerer-Type Thioglycosylation\",\"authors\":\"Hideaki Wakamatsu, Kozue Nitta, Nozomi Shoji, Yoshihiro Natori, Yukako Saito, Yuichi Yoshimura\",\"doi\":\"10.1002/cpnc.45\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The detailed practical synthesis of 4′-thionucleosides starting from <span>L</span>-arabinose is described here. 1,4-Anhydro-2,3-<i>O</i>-isopropylidene-4-thioribitol, which is the key intermediate for the synthesis of 4′-thionucleosides, is obtained from <span>L</span>-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.</p>\",\"PeriodicalId\":10966,\"journal\":{\"name\":\"Current Protocols in Nucleic Acid Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/cpnc.45\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Protocols in Nucleic Acid Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/cpnc.45\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Protocols in Nucleic Acid Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/cpnc.45","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Chemistry","Score":null,"Total":0}
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