(2R,3S,4S,5R,6S)-3,5-Bis-benzyloxy-2-benzyloxymethyl-6-methoxy-tetrahydro-pyran-4-ol 、
2,3,6-tri-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucopyranosyl chloride 在
molecular sive Type 4A 、 silver perchlorate 作用下,
以
乙醚 为溶剂,
反应 1.0h,
以64%的产率得到methyl O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-(1->4)-O-(2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1->3)-2,4,6-tri-O-benzyl-α-D-glucopyranoside