phenyl 6-O-benzoyl-2,3-di-O-(4-methoxyphenylmethyl)-1-thio-β-D-galactopyranoside   、                                                                                      2,3,4-tri-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-D-galactopyranosyl 2,2,2-trichloroacetimidate                                                                                                                                                              在
                                                                                                                                                                                 
三乙基硅基三氟甲磺酸酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 0.08h,
                                                                                                                生成                                                 phenyl 2,3,4-tri-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-α-D-galactopyranosyl-(1->4)-6-O-benzoyl-2,3-di-O-(4-methoxyphenylmethyl)-1-thio-β-D-galactopyranoside   、                                                                                             phenyl 2,3,4-tri-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-β-D-galactopyranosyl-(1->4)-6-O-benzoyl-2,3-di-O-(4-methoxyphenylmethyl)-1-thio-β-D-galactopyranoside