O-(Methyl-5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-didesoxy-β-D-glycero-D-galacto-2-nonulopyranosylonat)-(2-6)-O-(2,3,4-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-1,3,6-tri-O-acetyl-2-desoxy-2-phthalimido-β-D-glucopyranose 在
四氯化钛 作用下,
以
二氯甲烷 、
乙酸乙酯 为溶剂,
反应 2.0h,
以97%的产率得到O-(Methyl-5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-didesoxy-β-D-glycero-D-galacto-2-nonulopyranosylonat)-(2-6)-O-(2,3,4-tri-O-acetyl-β-D-galactopyranosyl)-(1-4)-3,6-di-O-acetyl-2-desoxy-2-phthalimido-α,β-D-glucopyranosylchlorid