2-azido-3-O-benzoyl-2,4,6-trideoxy-4-phthalimido-D-galactopyranose 、
三氯乙腈 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷 为溶剂,
生成
O-(2-azido-3-O-benzoyl-2,4,6-trideoxy-4-phthalimido-β-D-galactopyranosyl) trichloroacetimidate 、 O-(2-azido-3-O-benzoyl-2,4,6-trideoxy-4-phthalimido-α-D-galactopyranosyl) trichloroacetimidate