2019
DOI: 10.1002/ange.201900995
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β‐Selektive C‐Glycosylierung und ihre Anwendung in der Synthese von Scleropentasid A

Abstract: C-Glycoside sind Kohlenhydrate,w elche am anomeren Zentrum mittels einer C-C-Bindung an ein Aglykon gebunden sind. Durch ihre hçhere Stabilitätg egenüber chemischer und enzymatischer Hydrolyse werden diese Verbindungen häufig als Kohlenhydrat-Mimetika in der Arzneistoffentwicklung eingesetzt. Die vorliegende Arbeit beschreibt eine allgemeine, b-selektive Methode zur Synthese des Acyl-Cglycosidischen Strukturmotivs,welches in der Naturstoffklasse der Scleropentaside vorkommt. Eine Corey-Seebach-Umpolung als Sch… Show more

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Cited by 13 publications
(2 citation statements)
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“…[18] Thus, many glycosyl halides often require in situ generation. [19] The Diels-Alder reaction is useful for preparing pyranoses, but cannot be applied to furanosides. [20] A photoredox decarboxylation reaction leverages an unnatural tetrahydrofuran derivative with a carboxylic acid group at the C1 position, and therefore lacks a general scope of sugar substrates.…”
mentioning
confidence: 99%
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“…[18] Thus, many glycosyl halides often require in situ generation. [19] The Diels-Alder reaction is useful for preparing pyranoses, but cannot be applied to furanosides. [20] A photoredox decarboxylation reaction leverages an unnatural tetrahydrofuran derivative with a carboxylic acid group at the C1 position, and therefore lacks a general scope of sugar substrates.…”
mentioning
confidence: 99%
“…Due to fluctuations caused by light irradiation, we recorded the actual temperature of the oil bath for each reaction. In general, electron-deficient aryl bromides gave excellent yields of the corresponding C-glycosyl arenes (19)(20)(21)(22)(23)(27)(28)(29). Performing the synthesis of 17 on a 1.94-gramscale afforded 21 in 82 % isolated yield.…”
mentioning
confidence: 99%