allyl 2-O-benzoyl-4-O-benzyl-3-O-3,4-
-α-L-rhamnopyranoside 、 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl bromide 在
2,3,5-三甲基吡啶 、 silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
以88%的产率得到allyl 2-O-benzoyl-4-O-benzyl-3-O-<3,4-di-O-benzyl-2-O-<3,4-di-O-benzyl-2-O-(3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-α-L-rhamnopyranosyl>-α-L-rhamnopyranosyl>-α-L-rhamnopyranoside