methyl [2,3-b](11,12-benzo-1,4,7,10,13,16-hexaoxacyclooctadeca-11-ene)-4-O-[2-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyloxy)-ethane-1-yl]-2,3,6-trideoxy-α-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 5.0h,
                                                                                                                以99%的产率得到methyl [2,3-b](11,12-benzo-1,4,7,10,13,16-hexaoxacyclooctadeca-11-ene)-4-O-[2-(β-D-galactopyranosyloxy)-ethane-1-yl]-2,3,6-trideoxy-α-D-glucopyranoside