Methyl 2,3,4-tri-O-benzyl-1-thio-α-L-fucopyranoside 、 Phenyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-6-O-naphthylmethyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside 在
4 A molecular sieve 、
四丁基溴化铵 、
copper(ll) bromide 作用下,
以
1,2-二氯乙烷 、
N,N-二甲基甲酰胺 为溶剂,
反应 18.0h,
以87%的产率得到Phenyl (2,3,4,6-tetra-O-acetyl-β-galactopyranosyl)-(1->4)-[(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-(1->3)]-6-O-naphthylmethyl-2-deoxy-2-phthalimido-1-thio-β-D-glucopyranoside