3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl fluoride 、
benzyl 3-O-allyl-α-D-mannopyranoside 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 5.58h,
以88.8%的产率得到benzyl O-[(3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->2)]-O-[(3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->4)]-O-[(3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->6)]-3-O-allyl-α-D-mannopyranoside