3,6-di-O-benzoyl-2-(benzoyloximino)-4-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-α-D-arabino-hexopyranosyl bromide 、
双丙酮半乳糖 在
3 A molecular sieve 、
碘 、 silver carbonate 作用下,
以
1,4-二氧六环 为溶剂,
反应 48.0h,
以81%的产率得到O-(2,3,4,6-Tetra-O-benzoyl-β-D-galactopyranosyl)-(1->4)-O-<3,6-di-O-benzoyl-2-<(benzoyloxy)imino>-β-D-arabino-hexopyranosyl>-(1->6)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose