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S-o-(p-Methoxyphenylethynyl)benzyl (SMPEB) Glycosides for Catalytic Glycosylation and Their Application in the Synthesis of Polyporus Umbellatus Polysaccharides

Jincai Wang, Xinguang Lan, Shuangshuang Zhang,Chenglin Cai,Qi Zhang,Yingle Feng,Yonghai Chai

Organic Letters(2023)

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摘要
We herein reported a new type of S-o-(p-methoxyphenylethynyl)benzyl donor for a highly efficient glycosylation method. The donor was activated by 10% Tf2O and underwent glycosylation with various acceptors to provide the corresponding glycosides in excellent yield. Furthermore, two repetitive fragments of Polyporus umbellatus polysaccharides (PUPs), isolated from traditional Chinese medicine "Polyporus umbellatus", were prepared by combining the "single-catalyst one-pot" and "latent-active" strategies for the first time for future clear studies on the structure-activity relationship of PUPs.
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关键词
catalytic glycosylation,glycosides
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