2-methyl-<4,6-di-O-acetyl-1,2-dideoxy-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-glucopyrano><2',1':4,5>-2-oxazoline 、
1,6-anhydro-2,2',3,4',6'-penta-Obenzyl-β-lactose 在
对甲苯磺酸 作用下,
以
硝基甲烷 、
甲苯 为溶剂,
反应 48.0h,
以78.9%的产率得到O-2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1-3)-O-2-acetamido-4,6-di-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1-3)-O-2,4,6-tri-O-benzyl-β-D-galactopyranosyl-(1-4)-1,6-anhydro-2,3-di-O-benzyl-β-D-glucopyranose