[(2R,3R,4R,5R,6S)-4,5-Bis-benzyloxy-2-benzyloxymethyl-6-((2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-2-benzyloxymethyl-6-phenylsulfanyl-tetrahydro-pyran-3-yloxy)-tetrahydro-pyran-3-yloxy]-tert-butyl-dimethyl-silane                                                                                                                                                              在
                                                                                                                                                                                 
四丁基氟化铵   、                                                                                                  naphthalen-1-yl-lithium                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (2R,3R,4S,5R,6S)-4,5-Bis-benzyloxy-6-((2R,3S,4R)-4-benzyloxy-2-benzyloxymethyl-3,4-dihydro-2H-pyran-3-yloxy)-2-benzyloxymethyl-tetrahydro-pyran-3-ol