methyl 3-O-benzyl-2-N-(benzyloxycarbonyl)amino-6-O-tert-butyldimethylsilyl-2,4-dideoxy-4-C-formyl-α-D-glucopyranoside   、                                                                                      
benzyl (3R,4R,5S)-4-(2-azido-3,4-di-O-benzyl-2-deoxy-α-D-glucopyranosyl)oxy-3-benzyloxy-piperidine-5-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
三乙酰氧基硼氢化钠                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                以82%的产率得到benzyl (3S,4R,5R)-4-[(2S,3R,4R,5S,6R)-3-azido-6-(hydroxymethyl)-4,5-bis(phenylmethoxy)oxan-2-yl]oxy-1-[[(2S,3S,4S,5R,6S)-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-6-methoxy-4-phenylmethoxy-5-(phenylmethoxycarbonylamino)oxan-3-yl]methyl]-5-phenylmethoxypiperidine-3-carboxylate