O-<(2,3,4,6-Tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-3,6-di-O-acetyl-2-desoxy-2-phthalimido-β-D-glucopyranosyl>trichloracetimidat 、
tert-Butyldimethylsilyl-O-(3,4,6-tri-O-acetyl-2-desoxy-2-phthalimido-β-D-glucopyranosyl)-(1->3)-2-azido-2-desoxy-β-D-galactopyranosid 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以71%的产率得到tert-Butyldimethylsilyl-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->4)-O-(3,6-di-O-acetyl-2-desoxy-2-phthalimido-β-D-glucopyranosyl)-(1->6)-O-<(3,4,6-tri-O-acetyl-2-desoxy-2-phthalimido-β-D-glucopyranosyl)-(1->3)>-2-azido-2-desoxy-β-D-gal...