methyl O-(2-O-acetyl-3,4,6,7-tetra-O-benzyl-L-glycero-D-manno-heptopyranosyl)-(1->3)-O-<2-O-acetyl-3,4,6,7-O-L-glycero-D-manno-heptopyranosyl(1->7)>-2,3,6-tri-O-benzyl-L-glycero-α-D-manno-heptopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以94%的产率得到methyl O-(3,4,6,7-tetra-O-benzyl-L-glycero-α-D-manno-heptopyranosyl)-(1->3)-O-<3,4,6,7-tetra-O-benzyl-L-glycero-α-D-manno-heptopyranosyl(1->7)>-2,4,6-tri-O-benzyl-L-glycero-α-D-manno-heptopyranoside