2,3-di-O-benzoyl-4,6-O-di-tert-butylsilanediyl-D-galactopyranoside N-phenyl-2,2,2-trifluoroacetimidate 、
phenyl 2,3,6-tri-O-benzoyl-4-O-(2,3,6-tri-O-benzoyl-β-D-galactopyranosyl)-1-thio-β-D-glycopyranoside 在
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以92%的产率得到phenyl 2,3,6-tri-O-benzoyl-4-O-[2,3,6-tri-O-benzoyl-4-O-(2,3-di-O-benzoyl-4,6-O-di-tert-butylsilanediyl-α-D-galactopyranosyl)-β-D-galactopyranosyl]-1-thio-β-D-glucopyranoside