乙酸酐   、                                                                                      
4-O-(6-O-acetyl-4-O-benzoyl-3-O-(tert-butyldimethyl)silyl-2-deoxy-2-iodo-β-D-glucopyranosyl)-1:6-anhydro-3-O-benzoyl-2-deoxy-2-iodo-D-glucopyranose                                                                                                                                                              在
                                                                                                                                                                                 
三氟乙酸                                                                                                                                  作用下,
                                                                                                                                                                                        反应 21.0h,
                                                                                                                生成                                                 O-6-O-acetyl-4-O-benzoyl-3-O-(tert-butyldimethyl)silyl-2-deoxy-2-iodo-β-D-glucopyranosyl-(1->4)-1,6-di-O-acetyl-3-O-benzoyl-2-deoxy-2-iodo-β-D-glucopyranose   、                                                                                             O-6-O-acetyl-4-O-benzoyl-3-O-(tert-butyldimethyl)silyl-2-deoxy-2-iodo-β-D-glucopyranosyl-(1->4)-1,6-di-O-acetyl-3-O-benzoyl-2-deoxy-2-iodo-α-D-glucopyranose