乙酸酐   、                                                                                      O-β-D-glucopyranosyl-(1-3)-O-β-D-glucopyranosyl-(1-3)-O-<β-D-glucopyranosyl-(1-6)>-D-glucopyranose                                                                                                                                                              在
                                                                                                                                                                                 
sodium acetate                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.5h,
                                                                                                                以80%的产率得到O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-(1-3)-O-(2,4,6-tri-O-acetyl-β-D-glucopyranosyl)-(1-3)-O-<2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1-6)>-1,2,4-tri-O-acetyl-β-D-glucopyranose