methyl 7-C-<6-C-(2,6-anhydro-3,4,5,7-tetra-O-benzyl-1-deoxy-β-D-glycero-L-manno-heptitol-1-yl)-2,3,4-tri-O-benzyl-6-deoxy-1-hydroxy-α,β-D-galactopyranosyl>-2,3,4-tri-O-benzyl-6,7-dideoxy-β-D-galacto-hept-6-ynopyranoside 在
三乙基硅烷 、
三氟化硼乙醚 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
以86%的产率得到methyl 7-C-<6-C-(2,6-anhydro-3,4,5,7-tetra-O-benzyl-1-deoxy-β-D-glycero-L-manno-heptitol-1-yl)-2,3,4-tri-O-benzyl-6-deoxy-β-D-galactopyranosyl>-2,3,4-tri-O-benzyl-6,7-dideoxy-β-D-galacto-hept-6-ynopyranoside