[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
Regioselective Benzylation of 2-Deoxy-2-aminosugars using Crown Ethers: Application to a Shortened Synthesis of Hyaluronic Acid Oligomers
作者:Chinmoy Mukherjee、Lin Liu、Nicola L. B. Pohl
DOI:10.1002/adsc.201400269
日期:2014.7.7
bromide, sodium hydroxide and 15‐crown‐5 in tetrahydrofuran is shown to be an efficient method for installing benzyl groups at both the 4‐ and 6‐positions regioselectively directly from peracetylated N‐trichloroacetyl‐protected glucosamine and galactosamine. Application of this benzylation strategy proved to significantly shorten the synthetic route to hyaluronicacid tetra‐ and hexamers.