2-azido-3,4,6-tri-O-acetyl-2-deoxy-α-D-mannopyranoside 、 4-methoxyphenyl 3-O-allyloxycarbonyl-4-O-benzoyl-α-L-rhamnopyranoside 在
三氟甲磺酸三甲基硅酯 作用下,
以86%的产率得到p-methoxyphenyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-α-D-mannopyranosyl-(1→2)-3-O-allyloxycarbonyl-4-O-benzoyl-α-L-rhamnopyranoside