乙酸酐 、
tert-Butyldimethylsilyl O-(6-Deoxy-β-D-glucopyranosyl)-(1-2)-(β-D-galactopyranosyl)-(1-4)-<(6-deoxy-β-D-glucopyranosyl)-(1-2)>-β-D-xylopyranoside 在
吡啶 作用下,
反应 0.5h,
以81%的产率得到ter-Butyldimethylsilyl O-(2,3,4-Tri-O-acetyl-6-deoxy-β-D-glucopyranosyl)-(1-2)-(3,4,6-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-<(2,3,4-tri-O-acetyl-6-deoxy-β-D-glucopyranosyl)-(1-2)>-3-O-acetyl-β-D-xylopyranoside