Studies on the Selectivity Between Nickel-Catalyzed 1,2-<i>cis</i>-2-Amino Glycosylation of Hydroxyl Groups of Thioglycoside Acceptors with C(2)-Substituted Benzylidene <i>N</i>-Phenyl Trifluoroacetimidates and Intermolecular Aglycon Transfer of the Sulfide Group
作者:Fei Yu、Hien M. Nguyen
DOI:10.1021/jo301050q
日期:2012.9.7
glycoconjugates bearing the 1,2-cis-2-amino glycosidic linkages because the saccharidethioglycosides obtained can serve as donors for another coupling iteration. This approach streamlines selective deprotection and anomeric derivatization steps prior to the subsequent coupling event. We have developed an efficient approach for the synthesis of highly yielding and α-selective saccharidethioglycosides containing