methyl 2-azido-2-deoxy-3-O-tetrahydropyranyl-α-D-xylopyranoside 、 3,4-di-O-acetyl-2-azido-2-deoxy-α-D-xylopyranosyl bromide 在
4 A molecular sieve 、 silver carbonate 作用下,
以
二氯甲烷 为溶剂,
反应 48.0h,
以16%的产率得到methyl 4-O-(3,4-di-O-acetyl-2-azido-2-deoxy-α-D-xylopyranosyl)-2-azido-2-deoxy-3-O-tetrahydropyranyl-α-D-xylopyranoside