[EN] COMPOUNDS AND METHODS FOR CHEMICAL AND CHEMO-ENZYMATIC SYNTHESIS OF COMPLEX GLYCANS [FR] COMPOSÉS ET POCÉDÉS POUR LA SYNTHÈSE CHIMIO-ENZYMATIQUE DE GLYCANS COMPLEXES
[EN] COMPOUNDS AND METHODS FOR CHEMICAL AND CHEMO-ENZYMATIC SYNTHESIS OF COMPLEX GLYCANS [FR] COMPOSÉS ET POCÉDÉS POUR LA SYNTHÈSE CHIMIO-ENZYMATIQUE DE GLYCANS COMPLEXES
A Highly α-Stereoselective Sialylation Method Using 4-<i>O</i>
-4-Nitropicoloyl Thiosialoside Donor
作者:Dong-Mei Liu、Hong-Ling Wang、Jin-Cai Lei、Xian-Yang Zhou、Jin-Song Yang
DOI:10.1002/ejoc.201901587
日期:2020.2.7
The sialic acid ethyl thioglycoside donor, bearing a 4‐nitropicoloyl moiety as the stereodirecting group at the C4 position, can successfully achieve highly α‐sialylation with various acceptors. The method has been extended to the stereocontrolled synthesis of the protected trisaccharide found in the repeatingunit of serotype Ia Group B Streptococcus capsular polysaccharide.