O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1<*>3)-O-<2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1<*>6)>-2,4-di-O-acetyl-α-D-glucopyranosyl bromide   、                                                                                      
benzyl 2,4,6-tri-O-benzyl-β-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 4 A molecular sieve   、                                                                                                  
silver trifluoromethanesulfonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷                                                                                  为溶剂,
                                                                                                                                                                                        以72%的产率得到benzyl O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1-3)-O-<2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1-6)>-O-(2,4-di-O-acetyl-β-D-glucopyranosyl)-(1-3)-2,4,6-tri-O-benzyl-β-D-glucopyranoside