O-β-D-glucopyranosyl-(1-4)-O-β-D-glucopyranosyl-(1-3)-α-D-glucose   、                                                                                      
乙酸酐                                                                                                                                                              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)-(1-4)-O-(2,3,6-tri-O-acetyl-β-D-glucopyranosyl)-(1-3)-1,2,4,6-tetra-O-acetyl-β-D-glucopyranose