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.
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