Doing the Biz: The S‐benzimidazolyl (SBiz) anomeric moiety is a new leaving group that can be activated for glycosylation under a variety of conditions, including metal‐assisted and alkylation pathways. Application of a substituted SBiz moiety (X=anisoyl, see picture) allows active–latent and armed–disarmed types of oligosaccharide assembly.
Als neue Abgangsgruppe für Glycosylierungen unter vielfältigen Bedingungen, darunter metallvermittelte und Alkylierungswege, kann eine anomere S‐Benzimidazolyl(SBiz)‐Einheit aktiviert werden. Beim Einsatz einer substituierten SBiz‐Einheit (X=Anisoyl, siehe Bild) gelingt der Aufbau von Oligosacchariden über Aktiv‐latent‐ und chemoselektive „Entsichert‐gesichert“‐Strategien.
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