4-Nitro-benzoic acid (1S,2R,3S)-2-[(2S,4S,5R,6S)-4,5-bis-(tert-butyl-dimethyl-silanyloxy)-6-methyl-tetrahydro-pyran-2-yloxy]-3-(tert-butyl-dimethyl-silanyloxy)-1-methyl-pent-4-ynyl ester                                                                                                                                                              在
                                                                                                                                                                                 
二异丁基氢化铝                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以83%的产率得到(2S,3R,4S)-3-[(2S,4S,5R,6S)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-6-methyl-tetrahydro-pyran-2-yloxy]-4-(tert-butyl-dimethyl-silanyloxy)-hex-5-yn-2-ol