methyl 2,3,6-tris-O-(4-methoxyphenylmethyl)-4-O-trifluoromethanesulfonyl-β-D-galactopyranoside   、                                                                                      
                                                                                                                                                              在
                                                                                                                                                                                 sodium hydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.67h,
                                                                                                                以137 mg的产率得到methyl [[2,3,4,6-O-tetrakis-(4-methoxyphenylmethyl)-β-D-glucopyranosyl]-(1->4)-β-[2,3,6-tris-O-(4-methoxyphenylmethyl)-1-thio-Δ(5,5a)carbaglucopyranosyl]-(1->4)-β-[2,3,6-O-tris-(4-methoxyphenylmethyl)-β-D-glucopyranoside]]